This 1'ER conversion kit will make easy work of converting to a singlespeed and it gives you the option to run a 12t or 13t sprocket. Single Speed adaptor kit for 8/9/10/11 speed Shimano compatible cassette hubs. Pair of CNC machined aluminium spacers offer lateral support to 'Deep-tooth' single sprocket. Built-in offset optimises chainline. Supplied with 12 & 13T 3/32" cogs and lockring.
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