Classic 240 rear hubs are now lighter, stiffer, more precise and easier to maintain. Enhanced with Ratchet EXP driver technology, using fewer parts while providing greater reliability and easier maintenance. FEATURES: 15% improvement in axle stiffness due to new design placing the bearings further apart Integrated notch in end cap allows easier disassembly 54 points of engagement SPECS: Hub Drilling: 28 Skewer Included: No Hub/Brake Compatibility: 6-Bolt Disc Color: Black/Red Cassette Body Type: SRAM XD 11/12 Speed Spoke Interface: J-Bend Bearing Type: Sealed Cartridge Rear Axle: 12mm Thru x 148mm