The Kulie Toptube Frame Bag is the smartest solution for all who want to use their frame’s main triangle for storage space. This 3L bag is compact but just right even for bikes with limited storage space (like your full suspension mountain bike). Side zippers for easy riding access. Mounts on and off the bike in a minute with the Velcro strap mount system so you can carry the bag with you, or between your multiple bikes.
The Frame-back attaches easily to your top tube and seat tube with sturdy and highly adhesive Velcro straps.