i have a 2007 430 spyder -- with challenge wheels - in the manual it says they do not reccomend using runflat tires with challenge wheels -- does anyone know the reason for this restriction? thanks howard
Run flats have very little stickum. They are a great way to help you find a tree,guardrail or worse. Most that have the misfortune to get them on a vehicle immediately get rid of them. Better to get stranded with a flat then to end up trying to cut down a pole,tree or through a guardrail. Gtsbruce
Agreed above. They also "feel" absolutely horrible on most any car ever made. Great idea but not the answer (or at least not yet in their development cycle).