Supersprox 15-Tooth Countershaft Sprocket (CST-284-15-1)

Upgrade your motorcycle’s drivetrain with the SUPERSPROX CST-284-15-1 15-tooth countershaft sprocket, engineered for demanding off-road and street applications. Manufactured from SCM-435 carbon-free steel, this sprocket is designed to provide dependable strength, long service life, and reliable performance under hard riding conditions. Its construction helps reduce the risk of breakage while supporting extended sprocket life.
The sprocket features a fully hardened surface layer that helps reduce friction between the chain and tooth profile. By minimizing chain drag, the SUPERSPROX countershaft sprocket helps limit power loss and promotes efficient power transfer through the drivetrain. The lightweight design includes radial relief holes, reducing unnecessary material while maintaining the performance characteristics required for competition and aggressive riding.
For off-road use, the grooved tooth profile allows dirt and debris to clear quickly from the chain engagement area. This design is based on real factory racing team specifications, making the CST-284-15-1 a practical choice for riders seeking race-focused drivetrain components from SUPERSPROX. Whether used on the trail, track, or street, this 15-tooth countershaft sprocket is built to deliver consistent chain engagement and durable performance.
Install the SUPERSPROX CST-284-15-1 as a replacement or performance-oriented drivetrain component. Its factory-inspired design, hardened surface, lightweight construction, and debris-shedding tooth grooves make it well suited for riders who demand reliable operation and efficient power delivery from every ride.

Features:

• SCM-435 carbon-free steel construction for strength and dependable durability

• Hardened surface layer helps reduce friction and chain drag

• Designed to help prevent power loss and support efficient drivetrain performance

• Lightweight design with radial relief holes for off-road and street applications

• Grooved teeth help remove dirt and debris during off-road riding

• Real factory racing team specification design from SUPERSPROX

• 15-tooth countershaft sprocket

• Part Number: CST-284-15-1

Ships from Parts Unlimited.