This 55X9 sprocket is a 9-tooth steel construction weld on hub style sprocket that is in the 55 series of engineer class sprockets. It is made to accept a X-style weld in hub (which we also stock) and works with an array of chain sizes such as CA550, CA550HD, CA555, CA557, CA565, A550, A555, A557, 55, C55, SS55, C55A Rooftop, C55B Rooftop, C55D Rooftop, and C55L.
55X9 Sprocket Dimensions![]() ![]()
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