I currently have a Shimano Ultegra 9 bike that is in desperate need of wheels. I have two sets of Campy Wheels (Eurus' and Protons) and would like to use my Proton's with my Ultegra bike. Is the spacing on a campy 9 speed cassette incompatible with 9 Speed Shimano? I do understand that Wheels Mfg sells a spacer kit that will allow the use of a loose cog campy 9 cassette to work with a Shimano derailleurs, but is this absolutely necessary? Another route would be to purchase a hyper glide freehub body for the Proton's but they seem to be hard to find, and I'm not sure I want to swap the freehub body whenever I switch the wheels around. The Ultegra bike is my winter trainer, so it doesn't have to be perfect, but it does need to work. Any thoughts you may have would be most appreciated. Thank you.
Pete
Pete