The ORTLIEB top tube bag uses a clamshell-style closure and stiffened body to retain its shape. This black 1.5L version includes an internal soft mesh pocket and polyurethane-coated nylon construction.
The mounting plate attaches with rubber straps, with direct mounting possible on frames with suitable top-tube bosses. Compare the 9.1 x 3.3 x 4.7-inch dimensions and boss arrangement with your frame. The bag is described as water-resistant; strap fit still needs to be checked on the actual bike.












