So back in the day, a few years ago, when I bought my helmet I didn't know any better and got a M rated one, since it was local and black and not full of other peoples sweat. It's been fine, the track days I've ran all accepted either SA (car) or M (motorcycle).
Now I desperately want to get one more track day in at Road America this season, and the event I'm looking at requires SA. M isn't allowed.
I know helmets aren't someplace to skip money, but I don't exactly need a super fancy carbon fiber whatever one... I would be ok in the $300 or so range.
Any suggestions Oppo?