10T, 11T, 12T, 13T, 14T, 15T, 16T, 17T, 18T, 19T, 20T, 21T, 22T, 23T, 24T, 25T, 26T, 27T, 28T, 29T, 30T, 35T, 36T, 40T, 45T, 50T. ● Product: Roller Chain, Sprockets, Chain Connector. -- Our sprockets, chains, and links are crafted from high - grade carbon steel.
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