rear sprocket 62 teeth 420 for Aprilia RS 50 2006-, Derbi GPR 50 R, Senda SM DRD Racing 2011- 37392 fitting for Aprilia RS4 /Replica 50 TK000/VX000 2015, 5,4/2,7 PS, 4/2 kw

101 Octane sprocket with 62 teeth for 420 drive chain suitable for Aprilia RS 50 geared mopeds from 2006, Derbi GPR 50 R, Senda SM DRD Racing geared mopeds from 2011. This sprocket with 62 teeth has a shorter gear ratio compared to the original chainring. We recommend using this chain with 420 chain with 140 links, because these can be shortened to the correct length. Mounting hole: 6.5 mm Inside diameter: 108 mm hole: 6 PCD: 123mm standard: 420 offset: no / Teeth: 62