The Shimano XT FC-M8120 1 x 12-speed Boost crank with 178 mm Q-factor, 55 mm chainline and 148 mm O.L.D stands for highest drive efficiency at low weight. It offers optimum power transmission and maximum speed for the new XT system, which only use 1 chainring.
FEATURES
FC-M8120-1 Q-Factor 178mm
Chain line: 55mm
O.L.D 148mm (Boost)
Compatibility 1x12-speed with CS-M8100 cassettes 10-45 and 10-51
Direct mount (Lighter and stiffer design & easy exchangeable chainring by direct mount and one key release)
