I'm looking to pick up a second bike and I'm thinking either the Ferrous or SIR. I already have a dedicated singlespeed so I want something with the option for gears. Both bikes seem to get high praise but I've never had the chance to really ride either one. My LBS does not have a Ferrous in stock to try. There are some used Ferrous' out there but I'm not sure on the size. I know a lot has to do with preferences but would like some feedback. I'm 6" with a 32" inseam. Based on the Niner website I could fit either a medium or large. I believe the ferrous has a little longer ETT so what do you think?