Topeak Fixer 8 for Handlebar Bags Quick Click handlebar mount. Fast & easy attachment of Topeak handlebar bags and baskets. Comes with shims to fit road or MTB handlebars. An 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) | Topeak | Fixer 8 For Handlebar Bags Black