'08 135i - Wheels keep cracking - any ideas?

[kyleva]

I have a 2008 135i M-Sport. For some reason, the wheels continuously crack. I've cracked both the fronts and both of the rears, and then gotten them repaired -- only to have the cracks open up again.

• Only modification to the car is Eibach Pro Kit springs
• Currently on runflats
• The tires were properly inflated when this happened (32-38 psi).

Any ideas on why I am running into this problem? Any help would be much appreciated.

[ShocknAwe]

Ditch the runflats. They are transferring all the shock through to your wheels.

Also, the stock wheels are weak and brittle. Pretty low quality overall actually. I'd recommend buying some stronger/lighter pressure cast or rotary forged wheels. You'll be much happier.