THIS IS A 17 TOOTH 420 PITCH SPROCKET TO FIT 17mm SHAFT. BIGGER FRONT SPROCKET ADDS SPEED IN EACH GEAR AND MORE TOP SPEED. I ALSO HAVE 428 & 20mm SPLINE SPROCKETS LISTED. THIS IS A BUDGET SPROCKET, TECHORPS HEAVY DUTY TYPE IS LISTED.  PLEASE CHECK ALL DIMENSIONS PRIOR TO PURCHASE AS REFUNDS ARE NOT GIVEN ON P&P.

SPROCKET PITCH CALCULATION (JUST MEASURE YOUR SPROCKET). 6mm THICK = 420 PITCH. 7mm THICK = 428 PITCH

PLEASE NOTE PHOTO IS FOR ILLUSTRATION ONLY.