Jitsie Oset 20 Racing Rear Sprocket.
This is the carrier type sprocket as fitted to the silver aluminium adapter on the Racing rear wheel.
Excellent super strength sprockets from Jitsie. CNC Machined rear sprocket to provide both strength and also safety, with a recessed face and anodised in red for that factory look.
Meets FIM requirements on sprocket safety and stops injuries caused by trapping inside the sprocket face.