A-BB MT external MTB BB, black

Full line of external mountain bottom brackets for Shimano, FSA (MegaExo only) and Race Face cranks (NO SRAM compatibility). All are compatible with multiple chainlines and use conventional tools for installation and removal. Features RTS red anodized aluminum hex head crank bolt used in place of the stock plastic crank bolt that allows for better crank tension adjustment. MT CXS: Super lightweight BB that uses ceramic hybrid angular contact bearings and the RTS tension screw (not compatible with XTR M-970). MT S: Includes stainless angular contact bearings . MT: Includes angular contact bearings . Hand built in Renningen, Germany.