SUPERSPROX Countershaft Sprocket - 13-Tooth CST-432-13-1

A countershaft sprocket is only as good as its durability and efficiency—and this SUPERSPROX 13-tooth delivers both. Built from SCM-435 carbon-free steel with an impregnated surface that resists wear and fracture, it's engineered to outlast lesser sprockets while minimizing power loss from chain friction. Whether you're hammering a dirt track or pushing street miles, this is the same specification trusted by factory racing teams.

The ultra-hard surface layer cuts friction at the chain interface, keeping more horsepower at the wheel instead of bleeding it away. Radial lightening holes reduce unsprung weight without compromising strength, while the grooved tooth profile accelerates dirt evacuation—critical for off-road reliability. You're not buying a generic part; you're buying proven factory-level engineering.

• 13-tooth countershaft sprocket
• SCM-435 carbon-free steel
• Impregnated steel construction
• 0.5mm ultra-hard surface layer
• Radial lightening holes
• Grooved tooth profile
• Off-road & street rated
• Factory team specification
• Zero-breaking guarantee
• Reduced friction design
• Part #: CST-432-13-1