Description
A worn or damaged rear sprocket directly impacts acceleration, top-end power delivery, and chain wear rates—making sprocket selection critical to your bike’s overall drivetrain efficiency. The JT Sprockets 42-tooth rear sprocket delivers the durability and precision engineering required for demanding track conditions and high-mileage riding without the premium price tag. This is the bolt-on upgrade that restores snappy throttle response and extends your chain life.
- Fitment: KTM rear wheel
- Tooth count: 42T
- Material: C45 high-carbon steel
- Manufacturing: Computer-designed geometry
- Surface finish: Heat-treated, bead-blasted
- Installation: Bolt-on replacement
- Design approach: Optimized strength-to-weight
- Quality standard: Exceeds motorcycle industry
- MPN: JTR899.42
