How do you put a rack on some of these new bikes that don't have the split rear forks higher than the rear tire. For example, this bike....http://cgi.ebay.com/GIANT-OPTION-CROSS-HYBRID-SPEED-BIKE-BICYCLE-CRO-MOLY_W0QQitemZ380039087951QQihZ025QQcategoryZ98084QQssPageNameZWDVWQQrdZ1QQcmdZViewItem