Quote Originally Posted by uforgot View Post
You guys are impossible! Anyway, I'm not sure since I'm really only familiar with Shimano 105, ultegra and dura-ace, but isn't Tiagra and RSX their low end components? that's what is on this bike. The only 105 part is the sti shifters. Maybe someone who has dealt with components can give an opinion?
Tiagra is a step down from 105. not sure about the rsx--I've gotta look at the advert again.