Best Bike Frame Bags of 2024
Bike bags for bikepacking, mountain bikes, gravel bikes — wedge, top tube, half frame, full frame
August 19th, 2024
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A well-fitting frame bag will affect the handling of your bike the least of any type of bike bag. For this reason, a bike frame bag is an excellent option for carrying gear on your bike, especially on longer rides where you need to carry a lot of stuff. We tested 21 of the top-rated models to find the best bike frame bag for most riders.
A full-sized frame bag is essential for carrying all the gear you’ll need for camping and cooking on your first overnight bikepacking trip. A smaller half-frame bag is an excellent way to carry extra gear on every kind of ride—road, gravel, mountain, recreational, or e-bike rides. And as long as you have a bike with a bigger frame, half-frame bags still allow you to carry a water bottle or two in your bike’s main triangle.
We've got you covered whether you’re looking for the best bike frame bags for bikepacking, recreational riding, commuting, road, or gravel racing. We looked at bike frame packs with versatility for riding around town, downtown, and out of town on some forgotten dirt road.
I've worked as a bike mechanic for over 10 years and have biked over 50,000 miles in the past decade, often with a bike frame bag. I’ve sewn my own custom frame bags and used countless other bike bags over the years.
This guide covers the best non-custom, mass-market frame bags. These off-the-shelf frame packs are more readily available than custom frame bags. A frame bag made specifically for your bike will fit your bike best. And there are tons of options for custom frame bags out there. But you can’t simply buy a custom bag today and have it on your bike tomorrow. Plus, custom frame bags can be expensive.
If this is your first frame bag, we don’t think it’s necessary to get one custom-made. If you want to go that route, there’s lots of good information here on what to look for in a frame bag, custom or not.
For this review, we tested these candidates for the best bike frame bags while bikepacking in Colorado, Utah, and Arizona and while riding in Denver and on the Colorado Front Range. With top winners for road bikes, gravel bikes, mountain bikes, bikepacking, affordability, and more, here are the best bike frame bags for any kind of bike.
Looking for other bike bags? Check out our guides to Best Handlebar bag and Best Bike Seat Bag and Saddle Bag and Best Bike Panniers
Looking for gifts for cyclists? Check out the 20 Best Gifts for Mountain Bikers.
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Bike frame bags comparison Table
See our most popular mountain bike guides in our Bike gear section:
Sam Schild wrote this guide to the best bike frame bags. He is a bike mechanic who has biked over 50,000 miles in the last decade.
The winners
| BIKE FRAME BAG | TREELINE AWARD | TYPE | MATERIAL | CAPACITY (L) | WATERPROOF? |
|---|---|---|---|---|---|
| Revelate Designs Ranger Bike Frame Bag | Best Overall Read review |
Frame | Dimension polyant VX-21 | SM: 6, MD: 7.3, LG: 8.6, XL: 10 | No, seams aren't taped |
| Swift Industries Hold Fast Frame Bag | Best Half Frame Bag Read review |
1/2 frame | ECOPAK™ EPLX400 | 2.75, 3.25, 4 | Water-resistant zippers |
| ORTLIEB Frame-Fack | Best for Bikepacking Read review |
Top Tube | PS21R | 4, 6 | Yes |
| Restrap Frame Bag | Best Wedge Read review |
1/2 frame | VX21 and textured nylon, | S: 2.5, M: 3.5, L: 4.5 | No, seams aren't taped |
| Fjallraven Frame Bag | Best for Road Bikes Read review |
1/2 frame | 100% recycled nylon | 5 | No, seams aren't taped |
| ORTLIEB Frame-Pack RC Toptube | Best for Mountain Bikes Read review |
1/2 frame | PS21R, PS33 | 3, 4 | Yes |
| Bontrager Adventure Boss Frame Bag | Best for Gravel Bikes Read review |
1/2 frame | 36% polyester, 53% nylon, 9% hypalon, 2% nylon mesh | 1.31, 1.7, 2.5, 3, 5, 5.9 | No, seams aren't taped |
| Trail Mountain Bike Full Frame Bag | Best Budget Read review |
Frame | Thermoplastic polyurethane | S: 6, M: 7, L: 8.5 | Water-resistant |
Best overall bike frame bag: Revelate Design Ranger
Type: Frame
Material: Dimension polyant VX-21
Dimensions: varies
Storage Capacity: SM: 6, MD: 7.3, LG: 8.6, XL: 10
Waterproof: Yes, but the seams aren’t taped
What we liked: Secure attachment system, robust zippers, solidly built, two pockets, wider at end farther from the rider, four sizes
What we didn't like: Expensive
The Revelate Design Ranger is the best overall bike frame bag we tested. Revelate has been in the bikepacking bag game longer than almost anyone, and it shows in this frame bag's well-thought-out design and solid construction.
We tested this frame bag on Colorado Front Range mountain bike rides and overnight bikepacking trips. We also used an earlier version of the Ranger when bikepacking the 500+ mile Colorado Trail. In addition to taking this bag out on the trails, we tested it while commuting around Denver.
Revelate Designs Ranger Bike Frame Bag
The author riding with the Revelate Design Ranger full frame bag mounted on his bike.
Why it's the best
In all our testing, we found this bag is the best at utilizing the entire center triangle of a bike while remaining rigid enough not to bulge out and hit your legs when you pack it full. It’s also one of the most durable frame bags we tested and has been field tested by countless other bikepackers for years.
This frame bag fills the entire center triangle of most standard bikes. The bag has a subtle taper, so the part of the bag farthest from the rider is wider. The bag is 2.5 inches wide at the seat tube side but flares to 4.25 near the head tube. This feature allows you to fit a lot more gear inside than a non-tapered frame bag. This tapered shape is unique to the Ranger, too.
Close-up of high-quality water resistant zippers on the Revelate. They also protect against grit that can jam less robust zippers.
Sizes
It comes in four different sizes, and the “Fit” tab on the product page is very thorough. They’ve even created a full-size PDF so you can print the exact shape of a side panel in each size to see which will fit your bike best. We ordered a medium frame bag, which fits our Surly Ogre almost like a custom bag.
Attachment
The Ranger’s attachment system consists of 8 eight pieces of Velcro and a rubberized strap with a camming buckle to attach the bag at the head tube. Most of these mounting straps are of different sizes and shapes, and they each work well to attach the bag to the corresponding bike part.
The Revelate Ranger’s attachment system works well to attach the bag to corresponding parts of the bike.
On the top of the bag, one 4.5-inch wide Velcro strap in the middle wraps around the center of the top tube. There’s one small ¾-inch Velcro piece along the top of the bag near the seat tube and a moveable 1.5-inch Velcro piece on daisy-chained webbing.
The Revelate bag attaches via Velcro for a secure and stable attachment to your bike.
Along the bottom of the bag, on the downtube side, three pieces of 1.5-inch Velcro are moveable on daisy-chained webbing. Along the seat tube side of the bag, there are two more pieces of Velcro, one ¾-inch piece of Velcro is moveable on a mini daisy chain near the bottom bracket, and one 1.5-inch piece is sewn into the bag near the top. There are also thin pieces of foam fitted onto the four bottommost straps that sit between the bag and the bike frame.
Comparing the Revelate bike bag (bottom) with the ORTLIEB Frame-Pack full frame bag (top). Notice the different sizes of the three Velcro straps on the Revelate.
All these different sizes of Velcro, and whether they’re moveable or not, isn’t random. Each of these straps shows the immense amount of thought that went into designing this frame bag to work on the most bikes possible. The piece of Velcro that attaches to the seat tube near the bottom bracket, for instance, is on a small daisy chain and is as thin as possible to make it possible to work with a variety of bikes and front derailleur positions.
On the other hand, the massive 4.5-inch Velcro along the top tube isn’t going to run into anything on a standard bike, so this piece is oversized to attach to the bike securely.
The Interior Divide on the Revelate bike bag that prevents the bag from bulging when fully stuffed.
Material
The rest of the construction of the Ranger is just as dialed as the strap system. The bag is a combination of abrasion-resistant Xpac VX21 ripstop fabric and a heavy denier ballistic nylon along the sides where the bag will rub on the bicycle frame.
There is a foam sandwiched between the exterior and interior along the bag’s edges, where it interfaces with the frame. This foam, coupled with the rigid materials, keep the bag more rigid than most frame bags we tested. It also has an interior Velcro divider that prevents the bag from bulging too much in the middle when fully stuffed.
Zipper quality
The Ranger also has massive zippers that are easy to zip and unzip with one hand while riding. In our experience, bike frame bags put a lot of stress on zippers—all that dust your bike is kicking up is horrible for little zippers, and the constant force of what’s packed inside the bag pulling the zipper apart isn’t good for them, either. We’ve seen multiple zippers fail on frame bags, and the only kinds we trust anymore for this application are big zippers like on the Ranger.
Best Half Frame Bag:
Swift Industries Hold Fast Half Frame Bag
Type: 1/2 frame
Material: ECOPAK™ EPLX400
Dimensions: 2.8 L: 17.5 X 4 X 2.25, 3.5 L: 19.5 X 4.5 X 2.25, 4 L: 21 X 5.25 X 2.25
Storage Capacity: 2.75L, 3.25L, 4L
Waterproof: Water-resistant zippers
What we liked: Well built, looks great, very durable, made of recycled materials, women-owned company
What we didn’t like: Expensive
The Swift Industries Hold Fast Half Frame Bag is the best overall half-frame bag we tested. Swift Industries only makes bike bags, and every time we try one of their bags, we’re blown away by the quality. Swift is outspoken about being a female-owned company that makes all its bags out of recycled materials, which we love. We love this bag in particular.
Swift Industries Hold Fast Half Frame Bag
The Swift Industries bike bag has extra attention to detail we didn’t see in other bike bags like extra material to stiffen it along the top and downtube-facing corner to prevent sagging.
We tested the Hold Fast Half Frame Bag for hundreds of miles of commuting around Denver in the winter. We also used it on dirt, gravel, and bike path rides around southern Arizona. A half frame bag is perfect for day rides. It stores a folding lock, tools, a jacket, gloves, and plenty of snacks with room to spare. We consistently filled this bag to the brim, then stuffed it even more after removing a layer.
Attention to detail and stability
Swift Industries still only makes bike bags, and this specialization shows. This bag shows attention to detail that few bike bag makers rival. It has extra material to stiffen it along the top and downtube-facing corner to prevent sagging. This, combined with the stiff and durable Ecopak fabric, makes the bag rigid enough to hang in place without any support underneath. This bag doesn’t flop around like some half frame bags, even when we pack it poorly. We loaded this with a heavy beer can and bike lock on one end and only an ultralight windbreaker on the other. Most half frame bags would sag and swing wildly if packed this way, but the Holf Fast didn’t sway at all.
Zippers
It has a durable waterproof zipper, and while this bag isn’t seam sealed, the materials are waterproof. We can attest that this bag will keep your gear dry enough unless you submerge it.
The main opening into the bag sits on the drive side of your bike, and there’s also a small zipper pocket on the non-drive side that’s perfect for your phone, wallet, and keys (or a few granola bars).
Attachments
It attaches to a bike frame with velcro straps, and the two most important straps—in the middle of the top tube and the seat tube—are reinforced with the body material. These extra fabric tabs look great and show that attention to detail most frame bags lack. Swift also reinforces the velcro straps in these critical locations to stiffen the hold on your frame.
Swift also reinforces the velcro straps on this half frame bag to stiffen the hold on your frame in key locations, which proved useful on our Arizona bikepacking trip.
Value
While we love everything about this bag, it is pretty expensive compared to some other frame bags. However, we think this higher price is worth it for a highly durable, well-thought bag that’s impeccably built with recycled materials. We highly recommend this bag if you’re serious about cycling and can afford it.
Best bikepacking frame bag: Ortlieb Frame-Pack
Type: Top Tube
Material: PS21R
Dimensions: 19 x 5 x 2
Storage Capacity: 4L, 6L
Waterproof: Yes
What we liked: Fully waterproof, secure attachment on the top tube, durable
What we didn't like: Shorter than most frames, only comes in two sizes
The ORTLIEB Frame-Pack is the best bike frame bag for bikepacking because it’s the most waterproof full-frame pack we’ve found. It also has a super secure attachment system along the top tube, so the bag won’t move when it’s stuffed full of food and gear. We tested this frame bag on a series of rides on the Colorado Front Range. We took it on a bikepacking overnighter and used it on mountain bike rides on local trails. We also used it to commute around Denver for everything from getting groceries to carrying a six-pack of beer to the end of a bike ride.
Ortlieb Frame-Pack
The author, Sam Schild, riding a Colorado Front range mountain bike trail with the ORTLIEB Frame-Pack bike bag in Colorado.
Construction and waterproofness
The best thing about this frame bag is the fully welded construction and waterproof zipper. While adventuring on a bike, your frame bag can easily get wet. Afterall, your frame bag is close to the ground. So even if it isn’t raining, moisture on the ground can get on your bag. With this pack, you don’t have to worry about water, mud, or anything else getting on your gear.
The ORTLIEB Frame-Pack with a bikepacking set-up.
Attachment
The ORTLIEB has a very secure attachment system along the top of the bag. This system is three large Velcro straps that loop through d-rings and feed through the edges of the bag along the top. The way these straps feed through the bag pulls the edges of the bag up and around the top tube, creating a very secure fit.
The rest of the attachment system is less remarkable, though – only three basic Velcro straps and daisy chain loops welded along the rear and bottom of the bag. We think at least four straps would be better for this full-frame bag's entire base and back side.
Secure zippers and 100% waterproofing set the ORTLIEB Frame-Pack apart from others we tested.
Sizes and fit
This bikepacking bag only comes in two sizes, making it less likely you’ll be able to get a great fit on your bike. We got a pretty good fit on our medium Surly Ogre, but pictures of this bag on other bikes show that it doesn’t fit that well on many bicycle frames. However, this is still a fantastic option for a fully waterproof frame bag.
Best wedge Bike frame bag: Restrap Frame Bag
Type: 1/2 frame
Material: VX21 and textured nylon
Dimensions:
Storage Capacity: S: 2.5L, M: 3.5L, L: 4.5L
Waterproof: Yes, but the seams aren’t taped
What we liked: Multiple interior pockets, durable, wedge shape fits most bikes
What we didn't like: X-pac may have long-term durability issues
The Restrap Frame Bag is the best wedge frame bag we tested. Its unique shape fills the frontmost corner of your center triangle and attaches to your seat tube. Many wedge frame bags attach to the bike on two sides. This bag attaches on three sides, so it’s very secure. We tested this bag on a short overnight bikepacking trip in Colorado, then used it for more rides in and around Denver. This bag impressed us thoroughly—the build quality is better than most bags, and the design is simple yet intentional.
Restrap Frame Bag
Sizes and fit
This bike frame bag comes in three sizes, each utilizing more of the bike's center triangle. We tested the medium frame bag, which doesn’t stretch all the way to the seat tube but comes close enough to attach a strap.
Attachment
The bag’s attachment system has two rubberized Velcro straps, each two inches wide. These straps securely grip the top tube and don’t allow the bag to move or sway on your bike. The bottom and rear end of the bag have long ¾-inch straps with camming buckles to lock them in place. These straps have rubber o-rings fitted on them to hold excess strap length in place. While this system isn’t as easy to take on and off as Velcro, it allows you to get the straps tighter and keep the bag in place more securely.
The Restrap bike frame bag is made of highly durable material that shows no signs of wear. The Restrap Frame bag attaches on three sides so it is more secure than most wedge frame bags.
Material
This bike frame bag is constructed with a textured nylon outer material and Xpac VX21 fabric along the edges, where it interfaces with the bike. These materials are highly durable and show no signs of wear after three months of testing.
The frame pack is lined with a bright orange nylon packcloth. This liner material is waterproof but lets you easily see everything inside the bag.
The seams aren’t taped on this bag, so it should only be considered highly water resistant, as with all of the frame bags we tested other than the two offerings from ORTLIEB.
The Restrap frame bag has easy to access pockets that can be operated with one hand while riding a bike.
Zippers
The bag has two zippered pockets, one on each side. Both zippers open easily and can be operated with one hand while riding the bike. The right side pocket opens into the main pocket, which is larger and features two small mesh pockets for small items.
The left side of the bag has another zippered pocket, but this pocket is a smaller flat pocket; it’s perfect for a smartphone, maps, or other essential items you want easy access quickly. We found this was a great place to store our spork, so we always knew where to find that all-important eating tool.
Close-up of the Restrap bike frame bag and how well it fits bikepacking gear, like tent stakes.
While we didn’t find this an issue, we know that Xpac, a laminate material, can be less abrasion resistant than some woven materials, like the textured nylon used on this bag’s outside panels. Putting the Xpac along the edges of the bag, where your bike frame will constantly test the material’s abrasion resistance, seems less than ideal. However, this bag has a lifetime warranty, and most edges won’t rub on the bicycle frame as they would with a full-frame bag. So, this shouldn’t be a major issue.
Best frame bag for road bikes:
Fjällräven Frame Bag
Type: 1/2 frame
Material: 100% recycled nylon
Dimensions: S: 16.1 x 4.7 x 2.8 M: 18.5 x 5.1 x 2.8, L: 21.3 x 6.3 x 2.8
Storage Capacity: not available
Waterproof: Yes, but the seams aren’t taped
What we liked: Very rigid side panels, double zippers on pocket, looks good
What we didn't like: Only one pocket, smaller capacity bag
The Specialized-Fjällräven collaboration half-frame bag is a simple yet effective frame bag well-suited for road biking. It comes in three sizes, has one zippered pocket with three interior mesh pockets, and uses basic Velcro straps for all attachment points.
We tested this frame pack on our commuter bike, using it to ride the city streets and commuter trails in Denver. We left it on our bike for weeks during testing since the extremely rigid side panels made this the best frame bag for carrying a heavy Abus Bordo bike lock. This bag is especially good at accessing a small amount of gear while on the bike, which is a benefit for all riders, but it’s vital for road cyclists who don’t want to stop to eat.
Specialized X Fjallraven
The Specialized-Fjallraven collaboration half frame bag is simple but effective frame bag well-suited for riding around town and commuter trails.
Structure
This bag has very dense, thin foam sewn into the side and bottom panels and a sheet of polymer sewn into the panel along the top tube. These reinforced panels make this bag the most rigid of any frame bag we tested.
The Specialized-Fjallraven half frame bag is the most rigid of any frame bag we tested. It uses simple Velcro loops for an attachment system. This makes it excellent for carrying assorted items.
Storage
An extremely rigid frame bag is excellent when you’re using it for lots of different items — tools, bars, a tube, a lock, etc. — because that random assortment of gear could create lumps in the side panel and impede your pedal stroke.
The Specialized-Fjallraven half frame bag was the easiest to open while riding the bike since you can adjust the zipper.
This bicycle bag only has one compartment, but inside are three small mesh pockets for storing little things. Though there is only one zipper pocket, it has two zipper pulls, so you can set the bag up to open in whatever direction you want. We found this bag was one of the easiest to open while riding the bike since you can put the zipper wherever it is best for you.
The Velcro attachment system on the Fjallraven Specialzied bike bag was simple but worked well with the rigid bag.
Attachment
This frame bag uses simple Velcro loops for an attachment system. Though this isn’t the most secure method, the Velcro worked well enough since the bag is so rigid. We initially thought the Velcro wasn’t replaceable, but later realized it is but fits very tightly under the webbing around the bag’s edges. This tight fit helps make the bag attach securely, despite the Velcro.
Best frame bag for mountain bikes:
Ortlieb Frame-Pack RC TopTube
Type: 1/2 frame
Material: PS21R, PS33
Dimensions: 19 x 11 x 2
Storage Capacity: 3L, 4L
Waterproof: Yes
What we liked: The roll top is easy to pack, very secure attachment system, fully waterproof
What we didn't like: No interior pockets
The ORTLIEB Frame-Pack RC Toptube is a fully waterproof half-frame pack with a roll-top closure. This bag features the same attachment system along the top tube as the ORTLIEB Frame-Pack we reviewed above. This attachment system wraps around the top tube to securely hold the bag.
Ortlieb Frame-Pack RC Toptube
The author mountain biking in Colorado’s Front Range testing the ORTLIEB Frame-Pack RC Toptube bike bag.
Roll-top
We tested this tube bag on many mountain bike rides on the Colorado Front Range and used it for a sub-24-hour overnight trip. A unique feature of this frame bag is the roll-top closure. This closure allows you to fully pack this bag since you can stuff items into every crevice, then roll the top shut as you would with a stuff sack. We found this especially helpful when bikepacking since this is only a half-frame bag, allowing us to fit all our food in one place.
The roll top closure on the ORTLIEB Frame-Pack RC Toptube half frame bag is especially useful for mountain biking or for those who don’t need accessibility while on the bike.
Since you can’t access what’s inside the tube bag while you ride, we think this bag is best for mountain bikers or cyclists who don’t care about accessibility while on the bike. Though this bag isn’t very rigid anywhere except along the top, the rubbery material holds its shape better than the thin nylon material used on some bags.
Also, the roll-top opening lets you pack this bag more intentionally because you can stuff your gear in a way that prevents the bag from hitting your legs every pedal stroke.
While this isn’t a dealbreaker, we think it’s worth noting that the inside of this bag is black. A black interior can make it harder to see the bag's contents. But the roll-top opens wide enough to let plenty of light inside, so this isn’t as big of an issue as it is on bags with a narrower zippered opening.
Best gravel bike frame bag: Bontrager Adventure Boss
Type: 1/2 frame
Material: 36% polyester, 53% nylon, 9% hypalon, 2% nylon mesh
Dimensions: 1.31: 16.5x2x4.3, 1.7: 17.7x2x4.3, 2.5: 18.9x2x4.7, 3: 20x2x4.7, 5: 20.5x2x5.1, 5.9: 21.3x2x5.5
Storage Capacity (L): 1.31, 1.7, 2.5, 3, 5, 5.9
Waterproof: Yes, but the seams aren’t taped
What we liked: Comes in six sizes, can be bolted onto specific bikes, great pockets, stiff and durable material
What we didn't like: Straps with camming buckles can get in the way
The Bontrager Adventure Boss is a half-frame bag that comes in six sizes. The most important aspect of a frame bag is fit. When you buy off-the-shelf frame bags like this one, having a lot of sizes to get a great fit is essential. We tested this frame bag in two different sizes on various bikes.
We used this bike while riding the White Rim Trail and stuffed 100 miles' worth of food into this bag while still having room for two water bottles on our bicycle frame. We also tested this bike while riding around Denver and found it worked great for commuting, too.
Bontrager Adventure Boss Frame Bags
The Bontrager Adventure Boss bike bag is very secure. The author testing the Bontrager Adventure boss on a ride in the desert Southwest.
Material
This bike frame bag is made of rubber-coated nylon and polyester blended material. The sides of the bag that interface with the bike frame have stiff foam sewn between the exterior and lining material. The bag uses durable rubberized straps with camming buckles to attach to the bike, with one rubberized Velcro strap on the rear of the bag. The rigid materials, foam-reinforced sides, and camming buckles allow you to get a tight, secure fit.
The Bontrager Adventure Boss bike bag has two compartments with the main compartment accessible from the left side.
Organization
It has two compartments. The main compartment is accessible from the left side of the bike bag. The side load dry bag allows easy access. In this pocket, there are also some Velcro loops to hold a hand pump in place, and it’s lined with hi-vis yellow material so you can see what’s inside. The right side pocket is flat and works for smaller items. This pocket has three smaller pockets inside; one is stretch mesh, while the other two are the same yellow liner material.
While the straps were very secure, the stiff rubbery material and the camming buckles on the Bontrager Adventure Boss can get in the way while pedaling.
Straps
While the straps were very secure, the stiff, rubbery material and the camming buckles sometimes got in the way while we were pedaling. We found we had to be intentional about where the buckles were because if they were anywhere but directly above the top tube, they could catch on your pants while riding. This mishap isn’t a huge deal, but it’s worth noting.
Also, if you ride a Trek Checkpoint, you can mount this bag with thumb screws instead of the included straps for a clean look and a secure mounting system.
Best affordable bike frame bag:
Trail Mountain Bike Full Frame Bag
Type: Frame
Material: Thermoplastic polyurethane
Dimensions: S: 10.51 x 10.39 x 1.97, M: 11.65 x 10.87 x 1.89, L: 13.15 x 12.48 x 1.5
Storage Capacity: S: 6L, M: 7L, L: 8.5L
Waterproof: Yes, but the seams aren’t taped
What we liked: Affordable, three sizes, full-frame bag
What we didn't like: Only one pocket, thin material
The Trail Mountain Bike Full Frame Bag is our favorite affordable frame bag for any bike. We were pleasantly surprised when we first got our hands on this bag. We don’t usually have much faith in budget frame bags, even from larger bike companies. But this frame bag impressed us with its full-frame design that didn’t get in the way of our legs while pedaling. This bag costs significantly less than all the other full-frame bags we tested, and it outperforms its price.
Trail Mountain Bike Full Frame Bag
The Trail Mountain Full Frame bike bag is our favorite affordable bike bag.
Capacity
We tested this frame bag while biking the White Rim Trail. Over the 100 miles of desert riding, we could carry three liters of water, a jacket, lunch, dinner, and plenty of snacks inside this bag.
With frame bags made of thinner materials like this, they’ll often impede your pedal stroke once you fully load them. This downside is especially likely if you pack a full-frame bag, like one full of water. However, this bag can handle a 2-liter water bladder and a separate 1-liter bottle without issue because it has a Velcro divider that prevents the middle from bulging. The side without the zipper also has foam sandwiched between the outer and inner fabrics, which helps with overall rigidity.
Testing the Trail Mountain bike frame bag out over the 100 miles of desert riding. We could carry three liters of water, a jacket, lunch, dinner, and plenty of snacks inside this bag.
Attachments
This frame bag has eight large Velcro straps to attach to the bike. They aren't moveable, but there are enough straps to get a relatively customizable fit. The bag also comes in three sizes, which helps you get a good fit. The straps and undersides of the bag that will rub on your bicycle frame the most are made of a rubberized nylon material. The main body fabric is a relatively thin ripstop nylon with a packcloth nylon liner.
Close-up of the zipper on the right side of the Trail Mountain bike frame bag.
Pockets
It has one pocket accessible from a zipper on the right side of the bag. The main pocket has no extra interior pockets but does have the previously mentioned Velcro divider that keeps the bag from bulging. This divider also works to create two separate areas inside the bag.
We used the rear section created by the partition to hold a Smartwater bottle vertically, along with a wind jacket and a few energy bars. We put a 2-liter water bladder in the front section along with a bag of chips, some sausage, and more bars.
The Trail Mountain bike frame bag isn’t as rigid as others and didn’t bulge too much when packed full.
Flaws but not dealbreakers
While this bag isn’t as rigid as others made with heavier materials, we found it worked well enough. In our experience, if a frame bag fits well, it won’t bulge too much when you pack it full. If a frame bag is too big for a frame, on the other hand, all that extra material will hit your legs as you pedal.
Since this frame bag comes in three sizes and we were able to get it sized appropriately for our bike, the fact that the materials used aren’t all that rigid isn’t a huge issue. Our big concern with this bag is that it might not be the most durable, either. However, this is still a great choice if you're on a budget. Ours doesn’t show any signs of failing after three months of testing.
Contenders
Topeak Midloader
Type: 1/2 frame
Material: Polyethylene, nylon
Dimensions: 3L: 14.8 x 4.7 x 2.4, 4.5: 18.1 x 4.7 x 2.4, 6L: 21.5 x 5.3 x 2.4
Storage Capacity: 3L, 4.5L, 6L
Waterproof: Highly water-resistant
What we liked:
Taped seams
Lightweight
Available in three sizes
What we didn't like
Unlined
Bag has to be fully packed to have shape
The Topeak Midloader is a lightweight half-frame bag that allows you easy access the main compartment from either side of the bike. It’s pretty hard to always lean your bike against something in a way that allows you to access the pocket you want on a frame bag. Since this bag only has one compartment and it’s accessible via a zipper on either side, you don’t have to worry about where or how you lean your bike.
Topeak Midloader
Close-up of the Topeak Midloader bike frame bag loaded with snacks. Since it is made of thin material, it works best when fully packed.
We tested this frame bag on our commuter bike, riding the Denver streets and bike paths over several days. Since it’s made of a single layer of thin, lightweight Nylon, this bag only works well if it’s fully packed. If it isn’t full of gear, this bag get’s pretty droopy. This shape (or lack thereof) isn’t a total dealbreaker if you’re planning to have this bag stuffed full usually, but it’s something to consider.
Type: 1/2 frame
Material: Nylon
Dimensions: 5.5 Height (9″ Expanded) x 17 x 2
Storage Capacity: 3L, 5L
Waterproof: Highly water-resistant
What we liked: Expandable, inexpensive
What we didn't like: Sides of bag bulge when fully packed, fit could be more secure
The Serfas Ark Expandable Half-Frame Bag is one of the least expensive frame bags we tested and the only expandable bag. This bag is a half-frame bag, but when you unzip a zipper along the bottom, the bag expands into a nearly triangular shape.
Serfas Expandable Half Frame Bike Bag
The author testing the Serfas bike frame bag on a bikepacking trip in the Colorado Front Range.
We tested this bag on a bikepacking trip on the Colorado Front Range and used it for shorter mountain bike rides. This bag works well enough when used as a half-frame bag. It has a main compartment accessible from the left side and a flat pocket on the ride side for storing smaller items.
Close-up on the Serfas Bike Frame bag.
We wouldn’t recommend expanding this bag for long rides, though. We tried to use it as a full-frame bag while bikepacking, but it didn’t work very well. When the bag is fully expanded and full of gear, the sides bulge and hit your legs while pedaling.
However, this bag will work fine as a half-frame bag for light recreational riding and is inexpensive. So if this bag’s one size happens to fit your bike, this is worth a look.
Type: Frame
Material: Nylon
Dimensions: S: 15 x 9 x 2.5, M: 18 x 13 x 2.5, L: 20 x 14 x 2.5
Storage Capacity: S: 5.25L, M: 9L, L: 12L
Waterproof: Yes, DWR + fully waterproof bag included
What we liked: Fully waterproof, stiff and rigid, inexpensive
What we didn’t like: Zipper is hard to operate, harder to pack than others
The REI Co-op Link Frame Bag is fully waterproof and very affordable. We tested this frame bag in the winter and spring in Colorado, riding around town on our commuter bike and mountain biking on the Colorado Front Range. We’re impressed that REI has made a frame bag with welded seams and a toothless waterproof zipper for an affordable price. This is an excellent frame bag for cyclists who live in wet climates
REI CO-OP Link Frame Bag
This bag has everything you’d want in a fully waterproof frame bag. It has only one opening, which isn’t as convenient but works best for the bag's primary goal—to keep your gear dry inside. The waterproof material is very stiff, so the bag doesn’t sag or bulge. It uses movable velcro straps to attach the bag to your bike. There are three straps to attach to the top tube and down tube. Two straps attach the bag to the seat tube.
Close-up on the waterproof zipper on the REI Co-op frame bag. It keeps water out very well but can be difficult to open and close.
While the waterproof zipper is great for keeping water out, it’s difficult to slide open and closed. You have to use two hands to unzip it, and you definitely can’t get into this frame bag while riding. Also, the opening on this bag is slightly smaller than on some other bags, which makes it harder to pack.
However, this bag works great overall. And for the price, we think it’s an excellent option.
The REI Co-op Link bike frame bag makes a good commuter frame bag, especially for the price.
Type: Half-Frame
Material: 220D Polyamide Plain TPU
Dimensions: M: 17 X 8 X 46
Storage Capacity: S: 4L, M: 6L
Waterproof: Yes, IPX2 rating
What we liked: IPX2 Waterproof, fits a variety of bikes, comes in two sizes
What we didn’t like: Might not fit your bike well, could be longer and less tall
The Deuter Cabazon FB is awaterproof frame bag that fits a variety of bike shapes. It comes in two sizes: four liters and six liters. We tested the 6-liter version. It’s fully waterproof with an IPX2 rating, which means it will keep your gear dry in light to heavy rain, but it will probably let some water in if submerged or during extended deluges. It’s a half-frame bag that mounts to your bike’s top tube, seat tube, and down tube with Velcro straps.
Deuter Cabazon FB 6
Fit
The Cabazon FB is part of the Deuter Cabazon bike bag line, which also includes a seat bag and handlebar bag. The Cabazon Seat Bag and Handlebar Bag are great, but the frame bag suffers the same fate as many frame bags—it’s difficult to make a half-frame bag that works really well on most bikes. The Cabazon costs about the same price as the Swift Industries Hold Fast Frame Bag, our top pick for a half-frame bag.
Specifically, with the Cabazon FB, we didn’t like how tall it was and not as long. If it were longer, it would reach all the way from the seat tube to the head tube of our bike, a 54cm Specialized Diverge. Instead, it only stretches about two-thirds of the way from our seat tube to the head tube, leaving a large amount of unused space in front of the bag. A 54cm bike isn’t all that big, so there will be even more unused space on larger bikes. Also, it wouldn’t have to be quite as tall if the bag were longer. Then, the bottom of the bag wouldn’t hang as far into our frame and prevent us from using a water bottle in the center triangle. It also bulges when stuffed full, which being longer and less tall would help with.
This frame bag might fit your bike better than it fits ours, but even in Deuter’s photos, it fits similarly. Note the unused space in front of the bike and the lack of a water bottle cage beneath the bag.
Bike Anatomy
Though you don’t need to know everything about bikes to buy a frame bag, some knowledge of bike anatomy will be helpful.
Diagram showing a bike’s anatomy: top tube, center triangle, seat tube, down tube, and head tube.
Center Triangle
A bike frame bag fits in the center triangle of the bike. The center frame triangle is the main triangle created by the tubes that are put together to build a bike frame. There is also a bike's rear triangle, where the rear wheel fits, but this isn’t where a frame bag fits.
Top tube
The top tube runs along the top of the bike. This part of the bike is what you have to step over to get on the bike and the part you straddle when standing up while you’re stopped with a bike underneath you.
Seat tube
The seat tube is the tube that your bike’s seat post fits into. The seat tube connects to the rear end of your top tube at close to a right angle.
Down tube
The down tube runs along the bottom of the center triangle of your bike. It connects to the top tube and your seat tube near where you pedal the bike (called your bottom bracket, which your crankset passes through).
Head tube
The head tube is the shortest tube on a bike, generally. It is where your bike’s fork passes through the bicycle frame. The fork rotates inside the head tube when you steer the bike.
Types of frame bags
You'll see many different styles of frame bags here. Most of the differences between styles are in the capacity of the frame bag, but there are differences in the attachment methods and closure system on each bag as well. Here's what makes each style of frame bag we tested different from one another and the situations in which you may need those features.
Generally, larger frame bags will cost more and have more fit requirements. A good frame bag is expensive, but the fit is much of what makes a frame bag work well. So, get a frame bag that fits the internal dimensions of your bike’s center triangle.
The Bontranger bike bag is a half frame bag that fits under the bike’s top tube.
Half frame bag
A half-frame bag fits under your bike’s top tube, stretching from the seat tube to the head tube. It doesn’t reach the bottom of your bike’s center triangle. It attaches to the top tube, the seat tube, the head tube, and near the top of the down tube as well. It takes up roughly half the space of your bike’s internal triangle, hence the name. Usually, you’ll be able to carry at least one water bottle with a half-frame bag mounted to your bike.
The Revelate Ranger is a full frame bike bag that fits inside the entire center triangle of the bike.
Full-frame bike bag
A full-frame bag fits inside the entire center triangle of your bike. It attaches at multiple points along the top, seat, and down tube. A good fit is crucial for a full-frame bag since this will allow the bag to be more easily mounted to the bike and carry heavy gear efficiently.
Triangle bike frame bag
Triangle bike frame bags fit into the top rear corner of a bike’s center triangle. These are shaped like a triangle with a right angle. They aren’t very large, but they allow you to use more of your center triangle for water bottles, another small bag, or both.
The Restrap Frame Bag is the best wedge frame bag we tested.
Wedge frame bag
A wedge frame bag fits into a corner of your center triangle. These bags generally fit into the space at the front of your center triangle or above your top tube.
Full suspension frame bag
A full-suspension frame bag is a custom-designed frame bag that fits around the rear shock on a bike. It fits into the space on your full-suspension bike’s center triangle not taken up by the rear suspension.
Buying Advice
There are many differences between all the types of frame bags out there. We demystify some of the significant differences between them below.
Velcro Straps are the most common and simplest attachment system for frame bags.
Types of attachment systems
VELCRO STRAPS
Most frame bags attach with Velcro straps. Velcro is the simplest attachment system. It is fully adjustable and easy to use. Velcro does wear out over time, but in the case of a frame bag, you won’t be attaching and detaching the Velcro often enough to wear it out faster than the rest of the bag.
Camming buckles are a more secure way to attach frame bags to your bike, but they are also more difficult to attach. Here, we’re looking at the camming buckles on the Bontrager Adventure Boss.
CAMMING BUCKLES
Some frame bags use camming buckles and straps to attach them to the bike. These buckles are very secure but more challenging to attach than a simple Velcro strap since you have to feed the strap through the buckle.
The Topeak bike frame bag uses ladder locking buckles as an attachment system.
LADDER LOCKING BUCKLES
You might see nylon webbing and ladder-lock buckles on the attachment systems of some frame bags. This method is a very secure way to attach the bag to a bike, but it’s more difficult to connect than a simple Velcro strap or a camming buckle and strap.
Higher end frame bags, especially those that are custom, may use laces as their attachment system.
Laces
Some niche frame bags use laces to secure them to the frame. Laces are more common on custom frame bags from small bag makers. The laces allow you to tighten the frame bag along the center triangle evenly. A bag with laces looks pretty cool, too.
Most frame bags that use laces only use them along the top because you don’t need to have that close of a fit everywhere. Laces make it take a long time to attach a frame bag to the bike since you have to thread them through a series of loops on the bag and around the top tube.
Eight of the many bike frame bags we tested for this review.
NYLON OR POLYESTER STRAPS
Most frame bags use nylon or polyester straps in some fashion, whether in conjunction with camming buckles or Velcro, to attach a frame bag to the bike.
RUBBERIZED STRAPS
Some frame bags use rubberized straps and camming buckles or Velcro to attach the bag to a bike.
BOLTS
Some frame bags are designed to be bolted onto a frame. However, this feature is only available on frame bags explicitly made for a particular bike model. And that bike model must have extra threaded bosses to mount the bag. This is the case with the Bontrager Adventure Boss, which we tested. The Adventure Boss frame bag can mount directly to the frame of the Trek Checkpoint with bolts since the frame and the bike were designed to work together in this way.
Comparing full frame bags that we tested. We also tested half frame bags, which have a smaller capacity.
Capacity and usable storage space
The capacity of a frame bag is usually measured in liters and refers to the amount of storage space. The larger a frame bag’s capacity, the more gear and snacks you’ll be able to fit inside.
If you’re going on long bikepacking trips or want to carry everything you need for a day on the bike in one place, then a higher-capacity frame bag is probably for you. You can probably get away with a lower-capacity frame bag if you want a little extra space for a jacket and some bars.
Frame compatibility
One of the most important things about a frame bag is how well it fits your bike. How a frame bag fits onto your bike will make or break the functionality of that bag.
If a frame bag is too big for your bike, it will bunch up and sag in places. This bunching will cause the bag to hit your legs as you pedal. You won’t be able to access the zipper with a poorly fitted frame bag like this, and it could even get stuck in your chain.
If a frame bag is too small for your bike, it also might not work as intended. Some frame bags might not even attach to your bike at all if they’re too small. Even if they can be installed on your bike, they won’t maximize the use of space in the internal triangle.
If a bag sits even a few inches from your seat tube, you can’t use that space between the bag and your frame for anything else. Always check the measurement specs of a frame bag and compare them to the measurements of your bike.
Zip vs. roll-top
Most frame bags use a zippered opening to allow access inside the bag. However, some frame bags use a roll-top opening.
Comparison of many zippers on bike frame bags.
A zippered closure system makes it easy to quickly access gear in your frame bag. You can even access the bag with one hand while riding on most zippered frame bags. However, zippers wear out over time, especially when biking in dry, dusty areas. I’ve had zippers fail on a frame bag during a bikepacking trip, but it was a small, lightweight zipper. A frame bag with a bigger zipper is less likely to fail.
The ORTLIEB Frame-Pack RC Toptube is a roll top bag, which makes it easier to pack to full capacity.
A roll-top closure makes it easier to pack a frame bag to capacity. With a roll closure opening fully unrolled, you can use both hands to pack all your gear down much tighter than you could with a zippered frame bag. However, it takes more time to get into a roll-top frame bag. And you definitely won’t be able to access your roll-top frame bag while riding.
Material
Frame bags must be durable, especially on the spots where they constantly rub on the frame. Most full-frame bags have extra durable materials along at least the bottom corners, if not all sides of the bag.
Materials like Cordura and X-Pac are common on frame bags since they are both lightweight and durable. Nylon or polyester fabrics reinforced with a rubbery coating are also common on frame bags.
Whatever the material is, durability is the top priority. You’ll likely lay your bike and the frame bag on abrasive surfaces or ride through dense, brushy areas at least a few times. Plus, more durable materials tend to be more rigid, another essential feature of a frame bag (more on that below).
ORTLIEB zippers and fabric are 100% waterproof. Most other bike bags have water resistant material but do not have taped seams.
Water-resistant or waterproof
Water resistance will be more or less important depending on what you plan to carry inside your frame bag. Most of the frame bags we tested are made with waterproof materials but don’t have taped seams, so they’re only considered highly water-resistant. The two models we tested from ORTLIEB are fully waterproof, as is everything from ORTLIEB.
Comparing the internal pockets and dividers on several bike frame bags.
Number and size of pockets
Some bike frame bags only have one pocket. These bags are the simplest.
Many frame bags have a second smaller compartment pocket that allows you to stash small flat items separately, like your smartphone or a couple of bars. Bags with a second pocket like this usually have zippers on both sides; one zipper accesses the main cavity, while the other accesses the flat pocket.
Some frame bags also have internal pockets or other dividers to further organize what’s inside your bag. Interior pockets are usually a simple stretch mesh and are only large enough for keys, a wallet, a phone, or other small items.
Frame bags with internal dividers allow you to access one area of the bag without necessarily having to unpack everything. These interior partitions are usually made of Velcro straps so they can be adjusted. These dividers also contribute to the frame bag’s rigidity by preventing the middle from bulging out too far (more on that below).
Rigidity
The author comparing the rigidity of the ORTLIEB frame bag (top) with the Topeak frame bag (bottom).
A frame bag needs to be rigid enough, so it doesn’t bulge when fully loaded with gear. This feature is crucial for full-frame bags, but we found a lack of rigidity was also an issue with some half-frame bags.
Generally, the better a frame bag fits your bike, the tighter it will stretch the bag material. Rigidity isn't a concern if a frame bag is adequately tight-fitting, but every bike frame is different. So, unless you have a custom-made frame bag for your bike, you should look for a more rigid bag.
Some frame bag makers sew foam or rigid materials between the exterior and lining to give the bag maximum stiffness. Some bags rely on thicker, stiff materials to make them rigid.
Close up of the full divider on the ORTLIEB bike frame bag.
Adjustable dividers
Some frame bags use Velcro dividers to adjust the bag's width. This feature helps prevent the bag from bulging in the middle and hitting your legs as you pedal, which is a definite dealbreaker when searching for a good frame bag. We found these dividers almost as important as rigid materials for this reason.
The author testing the Bontrager Adventure Boss bike frame bag in the desert southwest.
How we tested
We tested bike frame bags in Colorado and Utah during late summer and fall. To test, we attached each bag to our bikes, loaded them with tools and food, and started riding.
We looked at how easily bags are attached to a bike, how secure that attachment system is, and how easily each frame bag opens while riding and off the bike. We looked at the size of the zippers on the bags to get an indication of their durability. We zipped and unzipped each zipper countless times while accessing our gear on bike trips.
Close-up of some of the bike half frame bags we tested, side-by-side. We also tested full bike frame bags and bike bags of other shapes.
We paid attention to how the bag's shape was affected when stuffed full of gear, noting if a bag bulged and got in the way of pedaling the bike. We also looked at each frame bag's features and how useful those were. Some frame bags have multiple pockets, a hydration port, or an internal divider to keep gear organized.
We also looked at the overall durability of every frame bag. We looked at the warranty information available for each bag. We looked at what materials the bags are made with and how well they’re put together. We used our previous experience with frame bags and looked at which bags were constructed in a way that would hold up the longest.
BIKE FRAME BAG CARE AND MAINTENANCE TIPS
Regular cleaning
Most frame bags are water resistant, so most dirt and mud shouldn’t stick. But you’ll need to clean your frame bag from time to time. Take extra care to keep the zipper clean, as excessive dirt can wear out the zipper slider.
Hand washing
Hand wash your frame bag with mild soap in a bathtub or deep sink. Rinse with clean water after gently scrubbing the frame bag surface with your hands.
Drying properly
Hang your frame bag to dry outside in a sunny spot. After the outside is fully dry, flip the frame bag inside out to ensure the inside dries thoroughly.
Avoid harsh chemicals
Use only mild detergent or soap when cleaning your frame bag, such as dish soap, laundry detergent, Doctor Bronner’s, or Nikwax Tech Wash. Harsh chemicals could damage the material and aren’t good for the planet either.
Inspect for damage
While cleaning your frame bag, you can inspect the fabric for any rips or tears. Also, check all seams to ensure they aren’t beginning to tear.
Waterproofing maintenance
If your frame bag seems less waterproof than it once was, apply a coat of Nikwax TX Direct Waterproofing Spray, this will add a new layer of water-resistant coating to your frame bag.
Proper storage
After you’ve cleaned and dried your frame bag, store it with the rest of your bike gear. You can store most frame bags flat, but don’t crease any stiffening materials built into your frame bag.
Be smart about how you load your frame bag
Load the heaviest items at the bottom of your frame bag and the items you want to access quickly near the zipper opening. When loading your frame bag, start with things that go in the bottom, then load from the rear of the bag to the front, closing the zipper as you go.
Avoid sharp objects
Don’t load your frame bag with sharp objects so that they can pierce the material. Always use a knife sheathe or a folding knife, and pack sharp objects inside a padded stuff sack or other padded material.
Repair minor damages
You can repair minor damages to your frame bag with Noso Patches or Tenacious Tape repair tape.
FAQ
HOW DO I PROPERLY INSTALL AND SECURE A BIKE FRAME BAG TO MY BICYCLE FRAME?
Line up your frame bag so the triangle shape matches the inner triangle of your bicycle. Attach all buckles and straps to the tube of your bike frame adjacent to each strap.
CAN I STILL USE A WATER BOTTLE CAGE ON MY BIKE FRAME IF I HAVE A FRAME BAG ATTACHED?
You can still use a water bottle cage on your bike if you have a frame bag attached if you’re using a half-sized frame bag that leaves room in your bike’s center triangle. If you’re using a full-frame bag, you can’t attach a water bottle cage in your center triangle. However, you may be able to attach a water bottle cage elsewhere on your bike, such as under your down tube, behind your seat, or on your fork.
ARE THERE ANY SAFETY CONCERNS ASSOCIATED WITH USING A BIKE FRAME BAG?
Using a frame bag doesn’t pose any safety concerns beyond those you should already remember when riding a bike. Your bike will handle differently when a frame bag is full of heavy items, so be sure to test ride your bike with a frame bag installed before you take it on any long rides.
CAN I CUSTOMIZE THE ORGANIZATION OF THE FRAME BAG'S COMPARTMENTS TO SUIT MY NEEDS?
Some frame bags have moveable velcro compartments to customize how you organize your gear inside a frame bag. Beyond this moveable divider, certain frame bags come with different pockets than others. Consider your organizational needs before you purchase a frame bag, and choose one that fits those needs. If you have specific organization needs, consider having a custom frame bag sewn for you.
WHAT ARE SOME ADDITIONAL TIPS FOR MAXIMIZING THE USE OF A BIKE FRAME BAG DURING LONG-DISTANCE RIDES?
Put your heaviest food items at the bottom of your frame bag during long-distance rides. Placing the heaviest food in your frame bag first keeps the center of gravity lower, which helps ensure your bike steers well.
ARE THERE ANY WEIGHT LIMITATIONS FOR A BIKE FRAME BAG, AND HOW DOES IT AFFECT BIKE HANDLING?
Most bikes have a weight limitation, so be sure that your weight plus the weight of your frame bag and gear do not exceed that weight. Some frame bags also have a weight limitation, but unless you’re carrying especially heavy items, such as rocks, you probably won’t exceed a frame bag’s weight limitation. A heavy frame bag will affect bike handling, but a heavy frame bag won’t affect bike handling as much as heavy bags on other places on your bike.
CAN I USE A FRAME BAG ON A CARBON FIBER OR LIGHTWEIGHT BIKE WITHOUT CAUSING DAMAGE?
You should be careful when using a frame bag on a carbon fiber or lightweight bike. Don’t place hard-sided objects in your frame bag so they’ll bounce inside the bag and hit your frame. You should also place protective tape over your frame on all the places where your frame bag will contact your bike frame.
ARE THERE SPECIFIC FRAME BAG OPTIONS DESIGNED FOR DIFFERENT FRAME SIZES, OR DO THEY COME IN A ONE-SIZE-FITS-ALL DESIGN?
Size is important for frame bags. Most frame bags come in multiple sizes to fit different frame sizes. Some frame bags only come in one size, and those are less likely to fit your frame. Measure the dimensions of your bike’s inner triangle and compare those measurements to the dimensions of a frame bag. Choose a frame bag size that is slightly small or the same size as the internal dimensions of your bike’s center triangle.
CAN A BIKE FRAME BAG INTERFERE WITH MY BIKE'S CABLES, GEARS, OR BRAKE SYSTEMS?
A Bike frame bag can interfere with your bike’s cables, gears, or brake system if improperly installed. Be sure your frame bag doesn’t squeeze any cables when installing the straps and buckles. Also, check that the frame bag doesn’t stick out too far near the bottom of your frame so that the chain and gears don’t rub on the bag.
ARE FRAME BAGS AERODYNAMICALLY EFFICIENT, AND DO THEY IMPACT THE OVERALL BIKE'S SPEED AND PERFORMANCE SIGNIFICANTLY?
Frame bags are the most aerodynamically efficient bag you can put on your bike. Frame bags will prevent crosswinds from passing through your bike frame, but they won’t create extra drag while you’re riding the bike. Frame bags add extra weight to a bike, which does impact the overall speed, but frame bags don’t negatively affect the aerodynamics of a bike.
About the author / Why you should trust us
Sam Schild has biked over 50,000 miles in the last decade. He is an avid bike commuter and has extensively ridden road, mountain, and gravel bikes. He has bike toured and bikepacked over 10,000 miles—across the United States, on the Kokopelli Trail, Colorado Trail, and all over the American Southwest. On all those trips, he’s used a frame bag of some sort.
He has also worked as a bike mechanic for over ten years. Between his experience as a bike mechanic and his own cycling experience, he’s seen a lot of frame bags. His first ever MYOG (make your own gear) project was a custom frame bag for his first Colorado Trail Bikepacking bike. He made a pattern out of some cardboard, got a quick tutorial on how sewing machines work, and went to work on a friend’s sewing machine. Since then, he’s sewn a frame bag for every bike he’s owned.
You can read more about Sam on his author page or on his website.
