AvramD

Has anyone ever seen a set of wheels that won't balance? I have a set of 16" Borbet type R's (I think - 5 spoke, rounded, decorative bolts around the perimeter) on an S4. They have Dunlop Wintersport M2's, 225/50/16.

I have not been able to get these wheels to roll smoothly since day one. They were originally mounted & balanced by Sears. They've been re-balanced twice by my Audi dealership, once w/ this super-high tech system the have, and then again statically.

My car runs perfectly w/ the stock AVUS wheels & 225/45/17 pole positions.

Behavior is fine below 60mph. But 75 & above, I feel a "shimmy." When the wheels have first been mounted, it is very significant - not so bad that you're afraid to to drive, but enough that I'd imagine a Hyundai feels better at 80. But the feeling gets lighter & liter over the next 100-200 miles.

People ask if I feel it more in the seat or the steering wheel. I think it's both. when cruising, I'd say the seat. But when I get on the breaks, it's worse, and I feel it in the wheel.

Is there such a thing as a wheel that doesn't "seat" properly when your mounting it? And that gets "seated better" with driving?

siberian

if they are not, did you use any type of spacers?

If the answer to both of those questions is no, then that might be your problem.

Rich_W

Are you sure they are on the car... One could have popped off when the wheel was placed on the speed balancer axle.

Eddie@Tirerack

I assume the basics have been covered, but that will be a definite cause.


You mention worse when on the brakes.. perhaps some slight rotor warpage could be accenting it under that condition?

Hope this helps.. call me if I can help!
Eddie

Rich_W

You win Eddie... you got the biggest sig... :b

I got a little one... :b

eharleq

Nope. Tell the monkey to use the precision setting, weights on both sides of the wheel.

Reggie3

Possible out of round tires? Balancing will not fix that.