rear sprocket 71 teeth 420 for Derbi, Aprilia, MH, Rieju, Malaguti, Yamaha 37391

Durable sprocket for Aprilia, Derbi, Rieju, Malaguti and Yamaha geared mopeds. Black coated to top protect against corrosion. Mounting hole: 8.5 mm Inside diameter: 105mm hole: 6 PCD: 125mm standard: 420 offset: no / Teeth: 71