Seller notes

Countershaft Steel Sprocket CST-1590-12-1 Manufactured from hardened SCM-435 steel making them virtually indestructibleCNC machining provides a perfect fit and smooth chain rotationFully recessed and drilled to reduce rotational massGas impregnated carburized teeth provide durability and reduce chain dragGrooved to prevent dirt build up under the chain and prolong chain life 2005YamahaYZ1252006YamahaYZ1252007YamahaYZ1252008YamahaYZ1252009YamahaYZ1252010YamahaYZ1252011YamahaYZ1252012YamahaYZ12520...

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