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@GA2G
Cheers matt (baddesigner) , but what I don't know is, why the do "normal" cogs only go down to artound 16t, yet much smaller are available for BMX? Would a near 100 gear of 48x12 be a lighter rig than say 50x14, for example? Also, do all bmx cogs just fit any track hubs? Thanks for answering.