Built on Shimano’s Hollowtech II architecture: lightweight, stiff-forged aluminium crank arms paired with an integrated spindle for high power-transfer efficiency and durability. Tailored for the new XTR 12-speed ecosystem: optimised to work with the latest direct-mount chainring options (28T-38T) and ultra-wide range cassettes (such as 9-45T or 10-51T) for modern 1× setups. Chainline of 55 mm (for the latest model) aligns with modern frames and maximises rear-wheel clearance and drivetrain efficiency. Multiple arm-length options (160 mm, 165 mm, 170 mm, 175 mm) allow you to select the optimum fit for your riding style, crank length preference and frame geometry. Designed for minimal weight while retaining high stiffness and durability — crucial when performance matters. In real-world testing, the 170 mm variant (in the Enduro/Trail‐specific M9220 version) tipped the scales at around 522 g. The Shimano XTR FC-M9200 Crankset is the flagship 12-speed mountain bike crank from Shimano, designed for riders who demand top-tier performance in cross-country, trail, and competitive racing environments. Its 170 mm crank-arm length delivers a versatile balance of cadence control and leverage, making it an excellent choice for everything from fast XC climbs to technical trail sections.