Hi all!

Just had my 550i in for brake service today, and they noticed that both my rear tires were down to the cord on the inside.
I put my spacers on in Jan/Feb i believe and they were perfectly even at that time, also the tires were new in August.

Spacers does not change the angle of anything, just moves it further out at the same angle so this does not make sense to me?

Anyone?

 

it usually depends on the size of the spacer but with anything suspension related i always suggest an alignment to be done.

 

Its 18mm spacers.
Can't really say its suspension related?

 

+1. Also yes, theoretically, the wheel just moves up and down. However, there is a slight curve or swing as it travels up and down. The spacers can in a sense slightly increase that curve.

 

Inside tire wear is due to negative camber. its possible the spacers amplified the effect , ,,, Its typical on these cars.. On my car after getting new tires i had the negative camber reduced to the verry minimum of factory specs... thatwill help inside tire wear... also i went with tires that u can rotate side to side.. so when the inside corners get to the wear bar.. I break the tires off the wheels and switch them side to side. I also went with nitrogen and bumped up the tire pressure 5 lbs to get the car to ride more on the center half.. it worked good on my car and now i get even tire wear all the way across the tire surface.. i have ventus v12 on now for over two years with about 26000 miles.. not bad for a soft summer tire,, but im due for new ones on the rear and the fronts are still goen strong...

 

Angle would still be the same though, just 18mm further out, idk...

 

When i bought this car i was looking at my rear wheels(when they were all tucked in under the fender) thinking about the toe in angle and negative camber which i thought was extreme.
But after driving like this from August to Jan there was really no noticeable difference on the thread wear.

Guess i gotta buy 2 new rear tires and have BMW do an alignment on it(with the spacers if they allow it), i'm gonna remember to have them adjust a little less negative camber and toe in. Might help!

Thanks man!!

 

camber is not what kills the tread, its the amount of toe in or out you have that determines the amount of ware. camber only determines the contact patch amount.

 

Yes, but picture this. The wheel mounting point camber is at -2 degrees. That means it's angling up. Imagine if you have 2ft spacers (extreme I know), that means your wheels wouldn't be touching the ground anymore. So you're not just moving the wheels out, it's also moving up. I hope I'm expressing myself clearly and choosing the right words here.

 

I did the same I have a 550i with sports package and the rear wheels were a bit tucked , so I got me some 18mm spacer which i had to return and get 15mm cause the tires would rub. Even after i did a bit of fender rolling. I will keep checking my rear tires for unusual wear.