Yet another steering vibration question...

[BYprodriver]

Originally Posted by shlim8

I finally found a hunter roadforce balancing machine at the city I'm currently in and it turns out to be just one or two miles from my office !!

However, the balancing guy tells me that because I'm not using N spec tyres, there will always be vibration.... he was most reluctant to do the balancing for me and he claims he has another boxster customer who did it and complained all the way to Michellin (he was on michellins). To cut the story short, they road force balanced 4 times but still vibration... finally on a dare by the Michellin reps, he changed to N specs and viola, no vibrations...

Is there any truth in this ?? Porsche can only use N specs or there will be vibrations ?

Anyone out there with non N specs tires and no vibrations from the steering ?

Anyway just did the road force balancing, seems to reduce the vibration even more at low speeds but really haven't fully tested it out yet.

N spec tires are not required to have a smooth ride. I normally by Michelin PS2's for all my cars but don't pay the extra for the N spec.