I'm going to be purchasing a cannondale slice through a friend that is a cannondale dealer, he is the owner of a ski and bike shop with more of an emphasis on ski so he doesn't know too much. I'm going to get the bike adjusted professionally to me once I have it, but need to know what size frame I should buy. From what I've found on the Internet, I should
Be a 58. Any suggestions, I am about 5-11/6 ft