JT Twinstar Steel/Aluminum Gray Rear Sprocket 50 Tooth (JTX251.50GR)
- 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 set for the motorcycle industry
- Sprockets are heat-treated and bead-blasted to reduce material surface tension
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2005-2009 | Yamaha | TTR230 | |
| 2011-2023 | Yamaha | TTR230 | |
| 2001-2009 | Yamaha | WR250F | |
| 2011-2013 | Yamaha | WR250F | |
| 2001-2002 | Yamaha | WR426F | |
| 2003-2009 | Yamaha | WR450F | |
| 2011-2019 | Yamaha | WR450F | |
| 1999-2023 | Yamaha | YZ125 | |
| 2020-2023 | Yamaha | YZ125X | |
| 1999-2021 | Yamaha | YZ250 | |
| 2001-2023 | Yamaha | YZ250F | |
| 2000-2002 | Yamaha | YZ426F | |
| 2003-2023 | Yamaha | YZ450F | |
| 2016-2023 | Yamaha | YZ450FX | |