Description
A countershaft sprocket is your direct mechanical link between engine power and wheel traction—and a worn or weak sprocket bleeds performance through increased friction and power loss. The SUPERSPROX CST-1901-13-4 is engineered from SCM-435 carbon-free steel with a hardened surface layer that cuts chain drag friction while maintaining the durability needed for both street and off-road abuse. If you’re serious about extracting every ounce of efficiency from your drivetrain, this factory-spec part delivers the precision and reliability that professional racing teams depend on.
- SCM-435 carbon-free steel
- Ultra-hard surface layer (.5mm)
- Radial lightening holes
- Grooved teeth design
- Reduced chain drag friction
- Factory racing specification
- 13-tooth configuration
- Off-road and street compatible
- Extended sprocket lifespan
- Zero-breaking guarantee
