Well, I'm back after my big trip, and am back to cycling for, well, commuting yet again. So, here's the deal. I have an old centurion road bike, which I converted into a fixed gear. I'm looking at, in about 2 months time, replacing the road drop outs with trackdrop outs, but I want to do it myself. Anyone on the board ever do that? I have access to an acetylene torch and associated welding supplies, but as for locating track drop outs, that's anybody's best guess. It ain't quite like building your own custom frame, but I'd like to start first by modifying my frames until they're the way I like em. Anyway, Input would be appreciated.