Thanks Jeff! That's good to hear since I'm running on RFT's on the E90. It makes total sense that driving with excessively low pressure could damage the sidewall so to be prepared for that I have been driving around with a 12V air compressor in the trunk of the E90. That storage spot where a spare tire should be is where the compressor lives.
Wagner: I've read a bunch of discussions about RFT's and most of it supports the conclusion that they can be patched. In fact, our BMWCCA chapter newsletter discussed it over a year ago and it was the same story as JCL experienced. (Another reason to join BMWCCA.
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