SRAM XD Driver Freehub Body - 11/12 Speed For 746 Rear Hub Includes Driveside Axle End Cap ModelNumber=G0821 New optimized 4mm dropout shape

New optimized 4mm dropout shape for grind and peg clearance

To maintain crisp shifting and striking appearance throughout its entire lifespan hard-chargers can replace both its protective skid plates and two-piece outer link if needed making this the most repairable derailleur SRAM has ever made

Diameter 20in Brand Alienation Model Acme UD ISO 406 ID Width 21 Width OD 28 Profile 20 Wall Dbl Side Color Red Hole Count 36 Valve PV/SV Weight 260g ERD 390 Extras

Made from SuperflexTM unbreakable all-weather polycarbonate

SRAM XD Driver Freehub Body - 11/12 Speed For 746 Rear Hub Includes Driveside Axle End Cap ModelNumber=G0821 New optimized 4mm dropout shapeOriginal equipment freehub bodies to fit SRAM hubs and wheels.