Shimano XTR FC-M9120-1 CranksShimano XTR series components appeal to the rider that is in search of the most advanced mountain bike components to date. XTR is rider tuned and available and built to suit the needs of the every rider. Shimano is inspired by the versatility and capability of today's riders and the terrain they tackle, XTR offers refined and tested solutions engineered for the way they ride. From brakes to wheels, shifters and derailleurs, Shimano XTR offers a full component line so you can build your complete dream bike with the best components available.The new Shimano XTR M9120 crankset is lighter, stiffer, and smoother. It is all that you would expect from the next generation of XTR components. It delivers optimal power transfer for maximum speed and efficiency. The new direct mount chainrins provide greater stability and reliability, and new DCE+ technology gives the XTR crank Shimano's best ever chain retention.Note* Chainring not includedFeaturesDirect mount chainring designsaves weight and increases durabilityDCE+ chain retention keeps chain firmly connected to the chainring.Bonded, hollow aluminum crankarms are lighter and stiffer.SPECIFICATIONSSpeeds1xBB Compatibility24mmChain RingNot includedCrank Arm Length165, 170, 175mmBB Spindle Interface24mmChainring MaterialN/ABolt Center Diameter (BCD)Direct mountCrank Arm MaterialAluminumChainline52mmBottom Bracket IncludedNoIntended UseXC, Trail, All-MountainWeight511g | Shimano XTR Fc-M9120-1 Cranks 165mm, 168mm Q-Factor