Need to know if there is a different size free hub for 7,8,or 9 speed cassettes. Have single speed adapter on free hub and converting to gears. Bought bike that way.
OK but what would the measurement be of the free hub. Need to find out to buy gears, derailleur ,etc.
hmmm, I'm not sure of that and don't have a 7spd near me right now. If you dont get an answer in the next few days I'll measure and post it once I get to the shop