Electric Bike ATA Cassette 7 8 9 10 Speed MTB Ebike Sprocket 11-32T. 10 Speed Cog teeth: 11T 13T 15T 17T 19T 21T 23T 25T 28T 32T. 9 Speed Cog teeth: 11T 13T 15T 17t 18T 21T 24T 28T 32T. 8 Speed Cog teeth: 1 1T 13T 15T 16T 21T 24T 28T 32T.
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