50BS12H X 1 1/8 Sprocket - 5/8" Pitch - 12 Teeth - 1 1/8" Finished Bore Hardened Teeth. Has recessed groove in hub for chain clearance. Common Interchanges 50B12F 1B UST H50B12 1 1/8
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50BS12H X 1 1/8 Sprocket - 5/8" Pitch - 12 Teeth - 1 1/8" Finished Bore Hardened Teeth. Has recessed groove in hub for chain clearance. Common Interchanges 50B12F 1B UST H50B12 1 1/8
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