Hello all. I was thinking of taking up a project but need an opinion on whether or not this is even possible. And before I drag it out to a LBS to have them laugh and try to sell me something else, I decided to ask you guys. Okay, I have a 2010 Trek Soho S and was wondering if its even possible to hang a rear derailleur on this bike. That would probably be the main issue if I were to try (and maybe cassette fitting?). I just have love for this bike but I want some gears. I know I could just buy a bike off the internet for cheap or whatever but that's no fun! Let me know what y'all think!