Description
A worn or mismatched rear sprocket directly impacts your bike’s acceleration, top-end performance, and drivetrain efficiency. The JT Sprockets 39-tooth rear sprocket delivers reliable power transfer with the durability to handle repeated high-load cycles, whether you’re pushing lap times or managing daily riding demands. JT’s precision engineering ensures consistent engagement with your chain while minimizing wear on both components.
- Tooth Count: 39T
- Material: C45 high-carbon steel
- Heat-treated construction
- Bead-blasted finish
- Computer-designed geometry
- Reduced surface tension
- Fitment: BMW/Honda
- MPN: JTR302.39
- Bolt-on installation
- Industry-standard quality






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