Compatible with road or mountain (68/73mm) bottom bracket shells * Spacers included for Hollowtech II, MegaExo and X-Type cranks; GXP adaptor kit sold separately (CR0097) * Fits frames with 46mm ID bottom bracket shells * Allows for 16mm of fore-to-aft adjustment * NOTE: due to the wide variety of manufacturers and their methods, we can"t guarantee compatibility with all frames. Please check with the manufacturer. Problem Solvers won"t take responsibility for your frame if it"s damaged as a result of installing the