Features:

• The evolution of the exclusive Sunstar Works-Z sprocket, now made from the highest quality stainless steel.


• Weighs up to 50% lighter than standard steel sprockets.


• Offset tooth design allows the sprocket to be 50% thinner than a traditional 520 steel sprocket making it the lightest STEEL sprocket available on the market.


• 100% heat treated AND even lighter than before with new weight reduction hole cut outs, but still has a hardness 5 times that of an aluminum sprocket and twice that of a standard steel sprocket.


• Up to 4 TIMES more durable with 1.2 times the lateral strength of any aluminum sprocket.


• Great self cleaning capabilities due to the alternating offset tooth design, same as the original Works-Z sprocket which extends the life of the entire chain drive system.

Fitment:
Honda XL350R 1984 to 1985
Honda XR200R 1984 to 2002
Honda XR250R 1984 to 1989
Honda XR250R 1996 to 2004
Honda XR350R 1983 to 1985
Honda XR500R 1983 to 1984
Honda XR600R 1985 to 1987
Yamaha TT-R230 2005 to 2009
Yamaha TT-R230 2011 to 2017
Yamaha WR250F 2001 to 2013
Yamaha WR250F 2015 to 2021
Yamaha WR250R 2008 to 2021
Yamaha WR400F 1999 to 2000
Yamaha WR426F 2001 to 2002
Yamaha WR450F 2003 to 2021
Yamaha YZ125 1999 to 2022
Yamaha YZ125X 2020 to 2022
Yamaha YZ250 1999 to 2022
Yamaha YZ250F 2001 to 2022
Yamaha YZ250FX 2015 to 2022
Yamaha YZ250X 2016 to 2022
Yamaha YZ400F 1999
Yamaha YZ426F 2000 to 2002
Yamaha YZ450F 2003 to 2022
Yamaha YZ450FX 2016 to 2022