Description
A worn or mismatched rear sprocket directly impacts your bike’s acceleration, top speed, and overall drivetrain efficiency. The JT Sprockets 40-tooth rear sprocket delivers the precision engineering and durability you need to maintain consistent power delivery and extend your chain and gearbox life. Built with C45 high-carbon steel and computer-optimized tooth geometry, this sprocket handles the demands of both street and track riding without compromise.
- Fitment: Yamaha-specific
- Tooth count: 40
- Material: C45 high-carbon steel
- Heat-treated construction
- Bead-blasted finish
- Computer-designed geometry
- Optimized strength-to-weight ratio
- Meets industry quality standards
- Installation: Bolt-on replacement
- MPN: JTR846.40
