http://www.amazon.com/gp/product/B00...A2TE9IQP68MWQU
would those be the right size? It is somehow currently the fastest bike I own (even faster than my 2011 KHS road bike, which weighs much less) It doesn't seem to be quite straight forward to figure just what size I need, beyond the whole 27", and the wheels are the only 'weak' point left that needs work.