rear sprocket 62 teeth 420 for Derbi Senda SM, R DRD Racing 37381

101 Octane sprocket with 62 teeth for 420 drive chain suitable for Aprilia RX, SX, Derbi Senda R DRD SM, Gilera RCR geared mopeds. This sprocket with 62 teeth has a slightly shorter gear ratio compared to the original chainring. We recommend using this chainring with 420 chain with 140 links, so that the chain can be shortened to the appropriate level. Mounting hole: 8.5 mm Inside diameter: 102mm hole: 6 PCD: 125mm standard: 420 offset: no / Teeth: 62