1/2" Hex Bore Aluminum Single Hub Sprocket (18t, #25 Chain)

Sprockets are profiled wheels with teeth that mesh with chain to transfer motion. WCP sprockets are custom manufactured out of high strength aluminum, black anodized for superior performance.

• Hub sprockets are 7075-T6 aluminum
• Number of teeth laser engraved on each sprocket
• Compatible with either #25 or #25H Roller Chain