Can you make a trek 2100 composite bike into a fixie?

Answer 1

After a quick net search it seems like the Trek would have the currently usual vertical dropouts, which means that fine adjustments of the chain tension will be hard to do, and the ability to fine tune chain tension is really important for a fixie. There are ways around this though, boutique hubs with assymmetric axles, half links, ghost, or floating sprockets, or maybe you'll just get lucky with the way things fit from the beginning (and will put ut with the service intervals. So yeah, the Trek can be made into a fixie, but it'll cost some, and the chain tension, and probably chain line as well will require some tinkering to get right.