Originally Posted by garethzbarker

Thanks for the input. Here's how it all went down. I bought a demo bike and had it shipped to me. I had the bike assembled and a the guy installing it took a couple of links out, he said my chain was too long. The bike rode and shifted great for a while. One day I accidentally shifted into the two largest gears and the chain was too short so it all locked up. so i took it back to the guys that assembled it and had my links put back on but the bike never shifted right again. I tried adjusting it and they tried for a long time.

Yes it was skipping middle gears shifting up or down. For instance I would shift from 5 to 6 but the chain would go to 7, the reverse would happen downshifting. It wasn't like sometimes either, it was every time I shifted. I bent the hanger by hand and thought i fixed it but it has malfunctioned like 2 times downshifting (but it stopped having problems going up in gears). It's the same kind of shifting problem just much less frequently. I need a fit on the bike anyway so I'm in the process of trying to find a good bike mechanic near Seoul that can look at it and give me a good fit. If anyone knows one let me know