Seat Bags

We set out to create the most stable, low profile mounted, feature loaded, waterproof seat bag available. The Spinelock seat bag checks all the boxes. The Spinelock integrates user tested and approved features like a one-way air purge valve, rear light slots, loop and bungee deck, and an external plastic bottom with a new patented attachment system. Stability was the driving element in the design process. If you want something you can pack and forget, the Spinelock is your seat bag. There are two size options, neither of which sacrifice features for capacity. The smaller but largely versatile Spinelock 10L maximizes your carry with minimal tire clearance and provides a generous amount of waterproof storage with additional space on the external corded deck. . If you are going on a long expedition or carrying cold weather gear we recommend checking out the Spinelock 16L. How it works: - The Spinelock stability system consists of three components: the saddle clamp, seat bag mounted "Spine" baseplate, and pin. - A low profile, high strength, forged aluminum clamp works in combination with precision IGUS bushings to form the pin interface. Twin forged upper arms, fastened by Torx-25 bolts, rotate into position above the saddle rails for easy mounting. - Resembling a spine ramp familiar to skateboarders, the "Spine" baseplate is made of an impact resistant UV-stabilized nylon and is integrated to the seat bag surface. The plate features two mounting positions to accommodate seatpost setback and saddle adjustments. To connect the bag, you simply line up your selected mounting position to the seat mounted clamp and slide the pin through the aligned holes. Attaching the side compression straps to the wings of the clamp fixes the pin in place and you're ready to ride!

We developed our Outpost Elite Universal Seat Pack (USP) to work with dropper or standard seatposts, be able to carry a bevy of cargo, and be stable enough to not swing around while it does. The USP is a two-part system: Part 1 is a T6061 Alloy Wing that affixes to your saddle and works with a standard or dropper post. Part 2 is a removable and waterproof dry bag. The bag has a scuba-style air bleed valve to assist with compression while off the bike. The wing stays on the bike, the bag comes off and allows you to pack, compress and go ride in the snap of a few buckles. Dropper Compatible Designed to not only stabilize your seatpack, but also work with or without dropper posts. The t6061 aluminum wing bolts to your seat rails for a rock solid mount. Get the perfect cargo fit for the roughest trails. Harness System This bag features a system that is comprised of an outer "Harness" that securely carries an inner bag. The inner bag can quickly and easily be removed from harness, without having to detach the harness from the bike. The advantage is that is saves time, is more secure and allows you to carry odd/oversized items or use your favorite aftermarket bags. Bleed Valve The waterproof dry bag features a scuba style air bleed valve so that you can pack your bag as tight as you need, and not have to worry about leaks. Welded Seam Construction Welded seams not only reduce bulk, weight and materials, they improve performance by eliminating the needle hole, a potential area for saturation and leakage. Welded seams also create a clean finish on both the interior and exterior of the bag. No Sway Able to carry a bevy of cargo, and stable enough to not swing around while it does. - Weight: 21.12oz - Capacity: 5.25L / 6.95L Expanded - Lifetime warranty