the differences are, the pro have a little thicker spoke, a bigger lip <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt='

'> , and are lightest of the three models(f, c, and pro) I got a great deal on them from North east auto design . 1549 shipped to my door(i got a discount for pre-ordering)