Originally Posted by shovelhd

While it may seem idiotic for Razor to have sold a Trek 2.1 only to buy another one, the new 5700 105 is supposed to be a significant upgrade from 5600. The new levers and hoods are styled after the DA7900 set, which are thinner and longer than 5600. Razor, I would advise you to not buy new bars and stem until you're fitted because the reach may change. I was given this advice from my pro fitter when asked about upgrading the shifters on my Felt.