QuickClick(TM) handlebar mount. Fast & easy attachment of Topeak handlebar bags and baskets. Comes with shims to fit road or MTB handlebars. Integrated mounting bar for cycle computer and/or mount for lights or other accessories. Cable secures the brackets position so it won't pivot once installed.* This is not backward compatible with handlebar bag products prior to 2009.Clamp Fits 25.4, 28.6 & 31.8 mm Handlebars (shims included)Art.no. TC3009Todson Sku: TC3009