Computer designed to achieve ultimate strength at minimum weight. JT combines leading-edge technology with top materials to produce the ultimate quality sprocket range with unbeatable value. Every sprocket meets or exceeds the highest possible quality standards. Sprockets are heat-treated and beadblasted to reduce material surface tension. Front sprockets are made with top-quality Japanese C45 high carbon steel and SCM415 chromoly steel alloy. Steel rear sprockets are made with top-quality Japanese C45 high carbon steel. Aluminum rear sprockets are made with high strength Austrian 7075 T-6 anodized aluminum. JT aluminum sprockets are about 30% lighter than a comparable steel equivalent, which reduces un-sprung rotating weight and improves performance.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1998-2000 |
Yamaha |
WR400F |
Base |
| 1999 |
Yamaha |
YZ400F |
Base |
| 1999-2023 |
Yamaha |
YZ250 |
Base |
| 1999-2024 |
Yamaha |
YZ125 |
Base |
| 2000-2002 |
Yamaha |
YZ426F |
Base |
| 2001,2007-2009,2011-2013,2015-2024 |
Yamaha |
WR250F |
Base |
| 2001-2002 |
Yamaha |
WR426F |
Base |
| 2001-2004,2006-2024 |
Yamaha |
YZ250F |
Base |
| 2003-2009,2011-2024 |
Yamaha |
WR450F |
Base |
| 2003-2024 |
Yamaha |
YZ450F |
Base |
| 2005-2009,2011-2024 |
Yamaha |
TTR230 |
Base |
| 2015-2024 |
Yamaha |
YZ250FX |
Base |
| 2016-2024 |
Yamaha |
YZ250X |
Base |
| 2016-2024 |
Yamaha |
YZ450FX |
Base |
| 2020-2024 |
Yamaha |
YZ125X |
Base |
| 2021-2022 |
Yamaha |
YZ250F |
Monster Energy Yamaha Racing Edition |
| 2021-2023 |
Yamaha |
YZ450F |
Monster Energy Yamaha Racing Edition |
| 2024 |
Yamaha |
YZ125 |
50th Anniversary Edition |
| 2024 |
Yamaha |
YZ250 |
50th Anniversary Edition |
| 2024 |
Yamaha |
YZ250F |
50th Anniversary Edition |
| 2024 |
Yamaha |
YZ450F |
50th Anniversary Edition |
