Description
A worn or inadequate rear sprocket directly impacts acceleration, top-end speed, and overall drivetrain efficiency—making sprocket selection critical for both track performance and street riding. The JT Sprockets 42-tooth rear sprocket for Kawasaki delivers computer-optimized geometry and premium C45 high-carbon steel construction to withstand extreme loads while maintaining minimal rotating mass. This is precision engineering that translates to faster lap times, smoother power delivery, and long-term reliability.
- Fitment: Kawasaki rear
- Teeth: 42-tooth
- Material: C45 high-carbon steel
- Finish: Bead blasted
- Heat-treated: Yes
- Design: Computer-optimized
- Installation: Bolt-on
- MPN: JTR487.42









