Renthal Rear Sprocket Yamaha/Honda YZ125 99-08, YZ250 99-08, YZ250F 01-09, YZ400F 99, YZ426F 00-02, YZ450F 03-09, WR450F 05-09, XR200R 86-99, XR250R 84-04, XR350R 83-85, XR500R 83-84, XR600R 85-87 -48T-Blue

Renthal Rear Sprocket Yamaha/Honda YZ125 99-01 (Stock gearing 13/48), YZ125 02-04 (Stock gearing 13/49), YZ125 05-09 (Stock gearing 13/48), YZ250 99-09 (Stock gearing 14/50), YZ250F 01-05 & 07-09 (Stock gearing 13/48) YZ250F 06 (Stock gearing 13/49), YZ400F 99 (Stock gearing 14/49), YZ426F 00-01 (Stock gearing 14/49) YZ426F 02 (Stock gearing 14/48), YZ450F 03-04 (Stock gearing 14/48), YZ450F 06-09 (Stock gearing 13/49), WR450F 05-09 (Stock gearing 14/50) XR200R 86-99 (Stock gearing 13/47) , XR250R 96-04 (Stock gearing 13/48), XR350R 83-85 (Stock gearing 14/42), XR500R 83-84 (Stock gearing 14/48), XR600R 85-87 (Stock gearing 14/48) Precision CNC machining for unequaled accuracy of fit, tooth profile and concentricity. An 'Ultralight' design reducing unnecessary weight while retaining maximum strength. Aluminum (one-third the weight of steel) which reduces the power required to accelerate and brake unsprung revolving weight, resulting in improved race performance. Self-cleaning mud grooves in between each tooth. Manufactured from specially enhanced 7075 T6 aluminum alloy.