JT 630 Steel Rear Sprocket

Manufactured using only the finest grade of C49 high carbon steel for the rear sprocket

Each 630 sized sprocket is heat treated then bead blasted to reduce surface friction and enhance chain and sprocket longevity, saving you money in the long run

Every JT sprocket goes through up to 25 production stages and 10 individual quality control checks before it is ready to leave the factory

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