SUPERSPROX Countershaft Sprocket - 15-Tooth CST-1269-15-2

A countershaft sprocket is critical to your drivetrain's efficiency—worn or inadequate sprockets rob you of power, increase chain wear, and compromise acceleration. SUPERSPROX's 15-tooth countershaft sprocket is engineered to factory team specifications, delivering reduced friction, extended durability, and the reliability demanded by professional racers and serious enthusiasts. This is the same part specification trusted by OEM racing teams.

The SCM-435 carbon-free steel construction and impregnation process eliminate breaking risk while the ultra-hard surface layer minimizes chain drag and friction losses. Radial lightening holes reduce unsprung weight without sacrificing strength, and grooved teeth accelerate dirt removal—essential for off-road performance. Whether you're running street or dirt, this sprocket matches the precision standards of real factory racing components.

• Material: SCM-435 carbon-free steel
• Tooth count: 15-tooth
• Surface hardness layer: 0.5mm ultra-hard
• Design: Radially lightened
• Teeth profile: Grooved
• Impregnation: Zero-break guaranteed
• Applications: Off-road and street
• Fitment: Countershaft-specific
• Specification: Factory racing grade
• MPN: CST-1269-15-2
• Installation: Bolt-on replacement