Join Date: Apr 2004
Location: Round Rock, TX, USA
First... get and use a GOOD dial gauge..My dealer sold a very nice one. I find it's much more accurate than the pencil type.
I run Metzler's... BIAS, non-radials. I started running 42 Front as "recommended" by dealer/BMW. Within 1k miles I noticed some "cupping". I bumped it to 46F Well, it lasted to 6k. I now have 3700 miles on the new tire, running 46 from first day.. no indication of cupping. I ride qute a bit of "in town" and slow riding... which seems to reduce front tire wear... (less turning of the wheel from port to starboard and back while trying to balance. I just come to a stop.
The rear was 46 and when I noticed cupping, I immediately went to 48 and the cupping is barely noticeable after 9500 miles.
Once I bossted the air pressures, I noticed much better handling and less tire compression when crossing rough road surfaces... that's "good" for hitting bumps, "bad" if you encounter gravel and other construction area road debris... just a little.. not a big thing..
Then, check it often.. daily if possible.
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