BRATE ANGRENAJ ACID MTB HYBRID (BNI / GEN3) 160mm Our crank is the most important component of your drivetrain. Not only does the low-profile design look great on modern bike designs, it also makes the crank incredibly stiff. With every last watt efficiently translated into forward motion, it could be the tyre-width's advantage you need in the final sprint.crank arm length 160-175 mm compatible with Bosch Gen3 BNI spindle interfaceGreutate: 440 g