I've noticed this since I've been driving with the donut since I cut the tire on Monday. Fortunately, it's coming off tomorrow.

The car's alignment was fine prior to putting the spare on, btw...


With the spare on the back left, the car is really tracks bad to the right. In fact, the steering wheel is actually left of center in order to keep the car straight down the road. If I put the wheel square, it goes off to the right.

Now part of the reason is the fact that the road is graded to the right, and the car has a tendency to follow the grade. But even on flat roads, I noticed this too.

So I checked the size of the donut, and it's a 155/80/17 which is basically the same overall rolling diameter of the 245/45/18 that normally sits on the back. So that can't be it.


But could it be that fact that the width of the spare is a 155 while the other 3 tires are 225s (front) and a 245 (back)? Could the much large contact area on the right side of the car versus the spare and a 225 on the left side be the culprit?

I gotta think that's it or I'm miffed to why it's pulling quite a bit.

Thoughts?

 

The donut is a sorry excuse for a spare...... . Get the regular one back ASAP.
C.

 

it's normal to pull with the donut.

Get the tire back on asap!

 

It's going back on 8am tomorrow.

Been working way too much to get it put back on. Not to mention I only drive 15 miles a day at 35mph... So I'm not putting a lot of miles on the tires.

 

The G is a finely tuned car with performance tires and suspension. You can't possibly think it will track and handle the same as with the regular tires on.

 

sorry going a bit off topic, does the spare tire clear the brembo brakes?

 

If it didn't I'd be driving on three tires and a rotor.



OK, off to the dealer.

 

haha

I didn't really think I had a spare that wouldn't work with my car.

 

Replacement is on, alignment is back to normal and perfect.

w000t

 

Good man.