The Ortlieb Toptube bag combines the versatility of a strap-mounted bag with a quick disconnect allowing you to quickly remove the bag without having to readjust the straps. Clamshell closure with magnetic latch provides easy access to contents, and a silicone strap system holds phones securely to the top.

• Rubber straps hold the mount plate to the frame while the bag can be quickly removed
• Mount plate can bolt directly to top tube bosses
• Stiffened bag body with mesh inner pocket
• Measures 12 x 23 x 8.5cm