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I bought a nice Koga Miyata race bike, that unfortunately had been converted to a fixie. I don’t mind fixed geared bikes, but this seemed like a waste of a nice vintage race bike. So I decided to convert it back to have more gears. Originally the bike would have been 14 speed, but I updated to 20 speed (2×10) with Shimano 105 components. This video covers pretty much the whole build. The bike is a 1992 Koga Miyata Exerciser.