SUPERSPROX Countershaft Sprocket - 13-Tooth CST-1590-13-1

Countershaft sprocket failures cost you races and rebuild time. The SUPERSPROX 13-tooth countershaft sprocket eliminates that risk with factory-grade engineering designed for professional racing teams—delivering the same durability and precision you need whether you're on asphalt or dirt. Built from SCM-435 carbon-free steel with an ultra-hard surface layer, this sprocket reduces friction-induced power loss while the radial lightening and grooved teeth design ensure reliable performance across demanding applications.

• 13-tooth countershaft sprocket
• SCM-435 carbon-free steel
• Ultra-hard surface layer (.5mm)
• Reduced chain drag friction
• Fully radial-lightened design
• Grooved teeth for dirt removal
• Factory team specification parts
• MPN: CST-1590-13-1
• Off-road and street compatible
• Extended sprocket lifespan