Description
A lightweight rear sprocket is one of the most effective ways to reduce unsprung rotating mass, directly improving acceleration response and handling dynamics. The JT 42-tooth rear sprocket delivers computer-optimized tooth geometry for maximum strength without excess material, ensuring reliable power transfer while keeping your rotating assembly as nimble as possible. Built from premium materials and precision-engineered for your specific application, this sprocket provides the durability and performance that professional racers and serious enthusiasts demand.
- 42-tooth rear sprocket
- Japanese C45 high-carbon steel
- Heat-treated construction
- Beadblasted surface finish
- Computer-designed tooth geometry
- Optimized strength-to-weight ratio
- Meets JIS quality standards
- MPN: JTR822.42
- Bolt-on installation
- Reduced rotating weight









