***Brand new Shimano FC-M9130 XTR crankset & Chainring from authorized dealer. The Shimano XTR FC-M9100 series crank arms feature an entirely new construction, using direct mount chainrings and a special gear tooth profile for improved chain retention DETAILS: Series: XTR M9100 Speeds: 12-speed Material: Aluminum P.C.D: Direct Bottom bracket not included ***Chainring included***