Shimano Alfine SG-S7001 Disc Brake Internally Geared HubRotor lockring not includedItem SpecificationsDrivetrain Speeds8Flange Diameter92.5Hub Drilling32ColorBlackHub Center to Flange (mm)30.0Defined ColorBlackRear Axle10x1 Threaded x 135mmSpoke InterfaceJ-Bend