Hello,

I thinking of purchasing a Mavic Open Pro/Ultegra wheelset from Performance as an upgrade to my bike. I belive that my fron shifters are Shimano Sora's but I'm not 100%. Fron the website the specs on the wheels say that they are 8-9-10 spd Shimano compatible -- what kind of cassette can I use without changing my front shifters? Is this even possible.

Thanks for any suggestions,

Marc