Description
A properly sized rear sprocket is critical to maximizing your Yamaha’s acceleration, top-end speed, and overall powertrain efficiency. The JT Sprockets 51-tooth rear sprocket delivers the precision engineering and durability you need to maintain consistent performance lap after lap, whether you’re on the track or the street. Built with computer-optimized design and premium materials, this sprocket reduces rotating weight while maintaining the strength required for high-demand riding.
- Material: Japanese C45 high-carbon steel
- Tooth Count: 51-tooth
- Heat-treated and beadblasted
- Computer-designed geometry
- Reduced material surface tension
- Fitment: Yamaha-specific (JTR251.51SC)
- Installation: Bolt-on replacement
- Meets/exceeds OEM standards
- Optimized strength-to-weight ratio
