OMFG - what the hell caused this
08-19-2010, 01:20 PM
#1
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My Ride: 535d M Sport Touring
Very scary finding this on all 4 tyres of our 535d E61.
The picture is of the worst one which looks like it was about to completely explode.
The tread is totally consistent across the width of the tyres (4mm) apart from the inside edge which has worn as shown. They done about 30000 miles max.
So what on earth would cause this? Too much toe, too much camber, something else?
These are not run flats, but Kumho KU31s. Glad we bought a space saver!
The picture is of the worst one which looks like it was about to completely explode.
The tread is totally consistent across the width of the tyres (4mm) apart from the inside edge which has worn as shown. They done about 30000 miles max.
So what on earth would cause this? Too much toe, too much camber, something else?
These are not run flats, but Kumho KU31s. Glad we bought a space saver!
08-19-2010, 01:42 PM
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My Ride: 2008 528i, Space Grey, Nav, PDC, Premium, Sports, Grey Leather, Xenon, Cornering...
08-19-2010, 10:08 PM
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My Ride: 2007 E61 M5, 1989 Z1
Looks like a lot less than 4mm tread remaining from the photos... and those are the conventional KU31s and not the RFT versions? How often are the pressures checked?
08-19-2010, 10:28 PM
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My Ride: 2010 BMW 530i E61, alpine white, cream-beige interior, sports-auto-transmission and a lot more-
If you have it on all 4 rims, I can't help you,but if it's only on the rear axle, it xould be that you run a wrong et, I know that if you run OEM rims with et28(only for e60) your tyres will rub against the suspension, Ithink this could be the result..
What kind if rims do you run?
What kind if rims do you run?
08-20-2010, 06:06 AM
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My Ride: 2008 Black E61 530Xd - M-sport - Comfort - Advantage
I don´t think it´s the camber guys...if it was the inside should be all slick. Now there is a clear edge visible like the wheel was rubbing to the suspension with the wrong ET.
At the front axle the camber is not adjustable.
At the front axle the camber is not adjustable.
08-20-2010, 06:29 AM
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My Ride: 2010 BMW 530i E61, alpine white, cream-beige interior, sports-auto-transmission and a lot more-
If it would be a negative camber, you would see it by the increasing abrasion from the outside to the inside,
I bet 5 bucks it's the et
I bet 5 bucks it's the et
08-20-2010, 07:13 AM
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Very scary finding this on all 4 tyres of our 535d E61.
The picture is of the worst one which looks like it was about to completely explode.
The tread is totally consistent across the width of the tyres (4mm) apart from the inside edge which has worn as shown. They done about 30000 miles max.
So what on earth would cause this? Too much toe, too much camber, something else?
These are not run flats, but Kumho KU31s. Glad we bought a space saver!
The picture is of the worst one which looks like it was about to completely explode.
The tread is totally consistent across the width of the tyres (4mm) apart from the inside edge which has worn as shown. They done about 30000 miles max.
So what on earth would cause this? Too much toe, too much camber, something else?
These are not run flats, but Kumho KU31s. Glad we bought a space saver!
My tyre size was stock (245-40-18) on all four wheels and alignment was perfectly fine, done shortly before this happened, and checked as I discovered it.
My explanation is: the fu***ng tires are s**t.
Now I am running Pirellis and after 20,000 miles I don't see any excessive wear on the inside.
Also, what I noticed is that my Pirellis have a "belt" of very hard rubber built-in the thread close to the inner edge of the tyre, obviously meant to prevent such excessive wear - and it works.