Our Direct Mount Adapters clamp around the seat tube to allow for the use of “high direct-mount” front derailleurs on frames with either 68/73 or 100mm wide bottom brackets. We provide different offsets in the 100mm varieties to accommodate the wide range of drivetrains in fat bike set-ups. Part Numbers QBP # Product Name Description Clamp Diameter Compatibility BB Shell PSFS1323 Direct Mount Adapter Mountain 2X/3X (26mm offset) 34.9/31.8 High Direct Mount 68/73mm PSFS1326 Direct Mount Adapter Mountain 2X/3X (26mm offset) 28.6mm High Direct Mount 68/73mm PSFS1327 Direct Mount Adapter Mountain 2X (43.5mm offset) 34.9/31.8/28.6mm High Direct Mount 100mm FEATURES AL-6061 construction Compatible with "high direct mount" front derailleurs only
