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@snoops
Does anyone know of an online calculator or a way of working out what cogs you can run either side of a hub using the same chain?
for example on my hack bike i'm running 32t chainring and 20t cog for polo, but want a decent gear inch on the other side for going for the papers etc. so could i run a 13/14t on the other side using the same chain?
is there some kind of equation that takes into account cog size, chainring size and drop-out lenth that would save me buying a load of cogs and having to try them all out?
any help would be great...