Originally Posted by Muddy
I switched to an open face helmet. It isn't a bad idea if you have an airbag equipped car. In the unlikely event that your airbag goes off, it can break a closed face helmet. I think the SCCA put out an advisory on it in the last year or so.
I find it difficult to belive that an airbag (designed to cushion an impact) is going to break a closed face helmet that is designed to withstand an impact with a solid object (such as a car in the case of an M2000 helmet or a rollbar for an SA2000 helmet).