Description
A countershaft sprocket failure mid-race costs you time and money—this SUPERSPROX 13-tooth sprocket eliminates that risk with SCM-435 carbon-free steel engineered for zero breaking. The ultra-hard surface layer cuts friction and chain drag, translating directly to measurable power delivery on both track and trail. Built to factory racing specifications with the durability and precision you’d expect from parts supplying real factory teams.
- Material: SCM-435 carbon-free steel
- Tooth count: 13-tooth
- Surface treatment: Ultra-hard impregnation
- Hardening depth: .5mm layer
- Design: Radially lightened
- Hole pattern: Radial weight reduction
- Tooth profile: Grooved (off-road)
- Application: Off-road/street dual-use
- Fitment: 430 chain compatible
- Finish: Factory racing spec
- MPN: CST430131









