The PO (previous owner) of my '06 Roc Standard put on a pair of the short Ikons. Since he only rode single, I guess it was OK for him. However, since I'm pushing 300 lbs, anytime I had someone on the back the tire would rub against the fender. I dialed the preload to the highest setting and this has stopped the problem. If you go with the Ikons, don't get the shortys unless you are going to always ride solo. Otherwise, I have been happy with them.