I have returned to cycling after 15 years. I want to use my Ribble bike and uprate the groupset. I am on an extreme budget. I have a FH-1055 hub and a 7 speed cassette. I have bought a 10 speed STI lever and chain. I bought a 10 speed cassette which does not fit my hub. When I took one of the cogs off it did, but was a bit loose. I presumed I could get a spacer and restrict the movement so that I could use the 10 speed shifter with the now 9 speed cassette. However I have been told by my LBS that I shall need to buy a new freehub. I am TOTALLY confused!! Could any one out there tell me the easiest/cheapest solution to my problem please