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#P6764
Rear drive sprocket commonly found on Derbi Senda DRD, Aprilia RX & Gilera RCR after 2011
6 bolt holes.
Internal diameter = 105mm
Stud hole diameter = 9mm
Pitch: 420
Choose from either 53T or 71T.
*Please compare with your old sprocket.
A smaller rear sprocket (than standard) on the rear will increase the gearing (more top speed), but make sure you have enough power to pull the gearing.
