Description
A countershaft sprocket is your direct link between engine power and wheel acceleration—any inefficiency here costs you lap time and reliability. SUPERSPROX’s 15-tooth design delivers the performance specifications trusted by factory racing teams, engineered to eliminate chain drag losses and survive the demands of both high-RPM street and intense off-road conditions. Built from SCM-435 carbon-free steel with a hardened surface layer, this sprocket is designed for longevity without compromise.
- SCM-435 carbon-free steel
- Ultra-hard surface layer (.5mm)
- Radial lightening holes
- Grooved teeth design
- Reduced friction, minimal chain drag
- Fast dirt removal capability
- Factory racing team specification
- 15-tooth countershaft configuration
- MPN: CST-1307-15-2
- Off-road and street rated
- Extended service life
- Zero-breaking guarantee









