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Seatpost Bags

Arkel Rollpacker 15 Bikepacking Seat Bag
$279.99
The Rollpacker 15 with quick release aluminum hanger is a completely waterproof bikepacking seatbag that easily slides on and off for easy packing and handling and features a sealed liner. The Rollpacker aluminum hanger is adjustable and will easily adapt to small frames, and it eliminates all side-to-side movement (tail wag). This seat bag has one large waterproof main compartment and a second super-practical compartment that's also waterproof. You will also find an easy access pocket in between the rear pocket and main compartment; this open pocket is always accessible and great for smaller items that you need to keep close (small camera, phone, snacks, etc.). - Weight of seat bag: 454 g / 1 lbs - Weight of hanger: 363 g / .8 lbs - Volume: 15 L / 915 cu. in. - Maximum Load: 15.4 lbs / 7 kg. - If the seat rails of your saddle are more than 3.5 inches (89mm) apart, you will need the Wide Rails Adapter (SKU: RBSRA)
Specialized Burra Burra Stabilizer Seatpack 20
$199.99
Specialized's Burra Burra Stabilizer Seatpack 20 is the largest in their line, which means that you can say goodbye to the cumbersome weight and handling of integrated rear racks. Instead, it affixes to your seatpost via an engineered aluminum stabilizer arm that minimizes any bouncing or side-to-side swaying under load. The pack itself features a welded roll closure design that's highly resistant to inclement weather, while its larger size (55x19x10cm) makes it ideal for mid to larger sized frames. - Welded construction with a secure roll closure opening ensures reliable weather resistance and long-lasting durability. - Engineered aluminum stabilizer arm minimizes bouncing and shifting for more secure, comfortable transport. - Urethane-coated YKK zipper pocket is designed to be highly weather resistant for dry storage of your smaller items. - Reflective accents increase your visibility to motorists in low-light conditions. - Stabilizer compatible with 27.2mm and 30.9mm seatposts. - Please note that this is not compatible with either dropper or carbon seatposts. - Dimensions (cm): 55 x 19 x 10 - Weight: 450g
Specialized Burra Burra Stabilizer Seatpack 10
$189.99
With Specialized's Burra Burra Stabilizer Seatpack 10, you can say goodbye to the cumbersome weight and handling of integrated rear racks. Instead, it affixes to your seatpost via an engineered aluminum stabilizer arm that minimizes any bouncing or side-to-side swaying under load. The pack itself features a welded roll closure design that's highly resistant to inclement weather, while its smaller size (50x16x10cm) makes it ideal for smaller frames with tight wheel clearances. - Welded construction with a secure roll closure opening ensures reliable weather resistance and long-lasting durability. - Engineered aluminum stabilizer arm minimizes bouncing and shifting for more secure, comfortable transport. - Smaller size is ideal for the tight rear wheel clearances of smaller frames. - Stabilizer is compatible with 27.2mm and 30.9mm seatposts. - Please note that this is not compatible with either dropper or carbon seatposts. - Reflective logo accent increases your visibility to motorists in low-light conditions. - Dimensions (cm): 50 x 16 x 10 - Weight: 415g
Salsa EXP Series Seatpack
$160.99
The EXP Series Seat pack keeps gear high, centered, and in line with you and your bike. Much like a dry bag or stuff sack, the EXP Series Seat pack fits a wide range of load sizes, and dutifully carries anything you need on your next two-wheeled mission. - Water-resistant welded construction with waterproof fabrics - Roll type closure and air purging valve that allows for managing overall volume - Stretch cord storage on top - Durable 1000D material strategically placed in high wear areas - Weight: 380g - Volume: 6-14L
Blackburn Outpost Seat Pack w/Dry Bag
$119.99 - $159.99
Blackburn's Outpost Seat Pack w/Dry Bag is a great alternative to panniers or a backpack. It is ideal for mountain bike overnight trips, but also works well for commuting or long day trips. - Expandable - Sometimes you need more space, while other times you need less. This bag expands to accommodate both. - Bag Fit - Bikes come in a lot of shapes and sizes. This bag includes adjustable mounting systems to allow fitment to almost ANY bike. - Also works with many standard dry bags and stuff sacks. Not recommended for carbon seatposts. - Daisy chain loop webbing provides extra opportunities to attach lights or other gear. - Volume 11.0 liters / 671 cu/in - Weight 1.33 lbs
Topeak Backloader
$89.99 - $124.99
Listen to your inner voice of adventure. Pack up your gear, get on your bike, and ride that epic trail. BackLoader is a large-capacity seat bag specially designed for bikepackers providing a streamlined way to carry gear without the need for a rear rack. Constructed of lightweight, highly water-resistant and durable materials, it mounts and removes quickly. The upgraded saddle mount system, in conjunction with compression straps, reduces the pendulum effect associated with large rear payloads, providing a comfortable ride for those long miles. An easy-access waterproof inner bag is included to keep contents completely dry. - Polyethylene / Nylon — Lightweight, durable, water repellent and stain resistant - Hook and loop fastener - Waterproof Rating: 10,000mm (waterproof inner bag) - Max Load: 5kg / 11lb - Safety light clip - Air release button
Brooks Challenge Tool Bag
$124.00
The first Brooks Challenge was designed and patented in 1896. This tool bag is for fitment to the rear of saddle bearing bag loops. It features buckles that, while fastening the bag to the saddle, are located within the hold itself, thus ensuring greater levels of security. The strap that secures the unit encircles the tools it carries to prevent them from rattling during transit. - Width: 175mm - Height: 78mm - Depth: 45mm - Volume: 0.5L
Lezyne XL-Caddy
$99.99
Lezyne's XL-Caddy is an oversized, high-capacity saddle bag. Large rear opening provides easy access to main compartment. Labeled organizational pockets fit pump, multi-tool, and tire repair necessities. Two quick-access side pockets. Buckle system attaches to saddle rails; dual Velcro straps attach to seat post. Durable woven nylon construction. Reflective logos and loop increases night visibility. Water-resistant zipper with large pull loop.
Topeak SideKick Wedge Pack STW
$92.99
Topeak's SideKick Wedge Pack STW features a unique, positive locking 2-piece mount that makes attaching and removing the pack a snap. Its unique side-opening design makes accessing your gear quick and easy. One side opens to reveal the included 16-piece tool kit, and the other side boasts room for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective strip adds safety and its semi-rigid construction makes the Wedge Pack durable and tough.
Specialized Starter Kit
$89.99
The Starter Kit has all of the basic necessities required to get you out riding prepared and safely. It contains two bottle cages, a durable, efficient pump, tire levers, and a water-resistant saddle bag to house it all. - Mini Wedgie saddle bag provides 48.5 cu. in. of easily accessible storage—ample room to house tire levers, small pumps, and basic nutrition. It's also treated to be water-resistant, and features an internal neoprene sleeve to safely hold tools. - Two Roll Cage bottle cages are light, dependable, and easy on the eyes, making them the perfect solution to your hydration needs. - Air Tool Flex Road pump is lightweight, durable, and features a twin Presta and Schrader valve on the T-Head. It's hose has built-in flex to alleviate stress on the tube's valve, while its inverted barrel design is efficient and allows for easy, high-volume pumping.
Brooks Isle of Wight Saddle Bag Medium
$87.00
The Isle of Wight Saddle Bag is a smart, practical bag to accompany the rider on every journey. Constructed from waterproof bluesign material and genuine Brooks Leather, the bag features a unique double zip for easy access to your valuables, with room enough for multi tools, and an innertube. - Width: 100mm - Height: 110mm - Depth: 180mm - Volume: 1.2L
Lezyne M-Caddy w/Sport Repair Kit
$82.99
Lezyne's M-Caddy with Sport Repair Kit is a complete and convenient kit for the rider with simple reliability in mind. It features a Sport Drive HP hand pump, RAP 6 multi-tool, Smart Kit for tire repair, and Matrix tire levers in an M-Caddy bag that tucks neatly under your bicycle seat. Be prepared with all the essentials needed for an unexpected repair whether you're out on a long weekend jaunt or daily commute.
Brooks Isle of Wight Saddle Bag Small
$81.00
The Isle of Wight Saddle Bag is a smart, practical bag to accompany the rider on every journey. Constructed from waterproof bluesign material and genuine Brooks Leather, the bag features a unique double zip for easy access to your valuables, with room enough for multi tools, and an inner tube. - Width: 100mm - Height: 100mm - Depth: 160mm - Volume: 0.8L
Lezyne M-Caddy w/CO2 Repair Kit
$76.99
Lezyne's M-Caddy with CO2 Repair Kit is a complete and convenient solution for the rider with speed in mind. It features a Twin Speed Drive CO2 inflator, two 16g CO2 canisters, a RAP 6 multi-tool, and Matrix tire levers in an M-Caddy bag that tucks neatly under your bicycle seat. Be prepared with all the essentials needed for a competition or any situation where a quick repair and tire inflation is a must.
Axiom Seymour Oceanweave Wedge 2.8 H2O
$69.99
An ultra-high-volume under-the-seat bag and water bottle pocket designed specifically for the gran fondo cyclist. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. CONSTRUCTION - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating - Red interior liner improves internal visibility MOUNTING SYSTEM - Lightweight Velcro saddle-mounting system ADDED BENEFIT - Zippered flap opening for easy access to bag contents while bag is on bike - Zippered side pockets do not impede leg movement, and are ideal for phone, keys, CO2, etc. - Interior credit card / ID pocket - Integrated waterbottle holder - Ultra-visible 3M triangle logo - LED light clip Volume 2.8 L / 173 cu in Weight 214g / 0.47 lbs
Topeak Aero Wedge iGLow (Strap Mount)
$64.99 - $69.99
Topeaks Aerowedge iGlow is an aerodynamic, lightweight, under-seat bag with Integral Glow technology for enhanced nighttime visibility. Mounts with Topeak's innovative Quick Release Buckle system to fit all railed saddles. Includes two CR2032 batteries.
Topeak Aero Wedge iGlow (QuickClick Mount)
$69.99
Topeak's compact Aero Wedge iGlow is a brilliant combo package: it combines the convenience and storage of a seatbag with the safety and visibility of a taillight. The built-in, super-bright 0.5W LED has an optical fiber element that surrounds the bag in light. Plus, Topeak's QuickClick mount makes it simple to swap between bikes. Two CR2032 batteries included.
Blackburn Switch Wrap
$64.99
Imagine if you could bring a tool box with all the essentials you’d need for bicycle maintenance with you on every ride. Well then, stop dreaming: the Blackburn Switch Wrap is already here. Spec’d with their Big Switch multi tool, the Switch Wrap provides you quick access to everything you’ll need to fix just about anything that could go wrong on a ride. The Wrap features specific sleeves for an inner tube, up to a 20g CO2 cartridge, and a tire lever. And, it keeps the Big Switch tools at your fingertips. When opened, the tool kit hangs from your saddle so you can grab what you need without spreading it all on the ground, so lost tools will only exist in nightmares. Minimal. Compact. Secure. Convenient. The Switch Wrap. - 15 functions - Includes T or L handle wrenches. - Tool bits include: T25, T30, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm and a flathead. - Nylon carrying pouch features sleeves for 20g CO2 cartridge, tire lever and includes a stash for your I.D., credit card and cash. - Attaches to seat rails or to bicycle frame. - 186g
Topeak SideKick Wedge Pack (Medium)
$59.99
Topeak's SideKick Wedge Pack features a unique, positive locking 2-piece mount that makes attaching and removing the pack a snap. Its unique side-opening design makes accessing your gear quick and easy and you'll have plenty of room for carrying tubes, a C02 pump, wallet, keys and whatever else you need. For low-light conditions, a 3M reflective strip adds safety and its semi-rigid construction makes the Wedge Pack durable and tough.
Giant Quick Fix Combo Kit
$54.99
- Includes everything for a quick fix while on or off-road - Giant seat bag - 12 glueless patches - 2 tire levers - Mini pump - 9 function multi-tool
Specialized Seat Pack – X-Large
$54.99
The X-Large Seat Pack mixes a low-profile, aesthetically pleasing shape with ample storage room (10x7x20cm) for your largest riding essentials. It attaches to the saddle easily via hook-and-loop straps, and it features a roll-up closure to keep its contents safe. You'll also find a reflective patch at the rear that increases your visibility to motorists in low-light conditions. - Secure attachment to the saddle with easily adjustable hook-and-loop and silicone straps to go around the seatpost. - Roll-up closure for ultimate flexibility of what you can carry and excellent water-resistance. - Expansion zippers for when you need to fit in more than you ever imagined. - Reflective patch on back that also allows for a Stix light to be clipped on securely with the fabric clip. - Dimensions (cm): 10 x 7 x 20
Topeak DynaWedge
$47.99 - $54.99
• Molded construction is light, water-repellent and aerodynamic • Hold tubes, tools and other small repair items • Easily mount to saddle rails with adhesive straps and seatpost with rubber strap • Suitable for most type of saddle rails
Lezyne Mid Caddy
$49.99
Medium sized saddle bag. Securely mounts to seat post and seat rails to keep bag stable. High quality, durable materials. Roll-style enclosure makes for easy loading and holds contents tightly. Labeled internal pockets to organize money, tools and tire repair items. Ideal for mountain and gravel bikes. - Weight: 95g - Dimensions: N/A - Cargo: 0.8L
Lezyne Pod Caddy
$49.99
Lezyne's Pod Caddy is a semi-rigid, compact seat bag that attaches simply and securely for the ultimate in convenience. The clamshell pod design opens wide for easy access and an internal mesh divider keeps your gear in place. And, you'll love the quick-release mounting system. Capacity - Small: 18.3 cubic inches - Medium: 29 cubic inches
Topeak Aero Wedge Pack (Large w/Fixer)
$49.99
Carry just the necessities in Topeak's Large Aero Wedge Pack. It's constructed of heavy-duty 1000-denier, Teflon-coated nylon and includes a handy quick-release mount that securely attaches the pack to your seat. And for nighttime safety, it features a 3M reflective strip and a taillight clip.
Axiom Seymour Oceanweave Wedge 1.3 H2O
$47.99
A high-volume under-the-seat bag and water bottle pocket designed specifically for the gran fondo cyclist. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. CONSTRUCTION - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating - Red interior liner improves internal visibility MOUNTING SYSTEM - Lightweight Velcro saddle-mounting system ADDED BENEFIT - Zippered flap opening for easy access to bag contents while bag is on bike - Interior credit card / ID pocket - Integrated waterbottle holder - Ultra-visible 3M triangle logo - LED light clip - Volume 1.3 L / 79 cu in - Weight 126g / 0.28 lbs
Topeak Tri-BackUp TireBag
$47.99
Long days in the saddle training and racing take their toll on your equipment. Tri-BackUp TireBag provides protection from harmful ultra violet rays that can quickly degrade a tubular tire. So the next time you have to replace your tubular tire, it’s ready to go. Designed to integrate with Tri-Backup Pro V and Tri-Backup Pro I for maximum aerodynamic efficiency. - Material: 420D nylon - Mount: Works w/ TRI-BackUP Pro V / Pro I; Top tube; Saddle rails - Compatibility: Up to 700 x 25c tubular tire (Max folded length 8.7 cm / 3.4”) - Round Tube Diameter: Fits 23/48 mm - Aero Tube: Fits up to 260 mm (10.2”) circumference - Added Features: Side pockets for up to four 16g CO2 cartridges Zipper docks - Size: 25.8 x 7.8 x 4.6 cm / 10.2” x3.1” x 1.3” - Weight: 107 grams
Topeak Weatherproof DynaWedge
$47.99
• Molded construction is light, water-repellent and aerodynamic • Hold tubes, tools and other small repair items • Easily mount to saddle rails with adhesive straps and seatpost with rubber strap • Suitable for most type of saddle rails
Tacx Saddle Bag
$46.99
Planning a long ride? The Tacx Saddle Bag is a perfect way to carry tools, food, and other items. The lightweight bag has been designed to be as small and light as possible. The zipper smartly opens on the side so you can easily remove items. Thanks to the quick-release attachment, you can effortlessly click the saddle bag into place under the saddle. The adapter can be placed under saddle rails with a diameter of 7mm or 9mm.
SKS Race Bag
$46.00
SKS's Race Bag fastens to your saddle's rails and quickly detaches with a twist. Plenty of sizes ensure you can get one to fit your needs. A separate compartment for a multi-tool keeps your tube safe. And, the reflective accents add visibility in low-light situations.
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