It's my understanding that most motorcycle helmets have an "M" rating like M2005 or M2010. You'd need to check the NASA rulebook but I don't think they allow a helmet with anything less than an "SA" rating.Quick query, would a full-head motorcycle helmet work for Hyperdrive/HDPE? I mean I would assume it's designed for the helmet to contact the road with your head in it, whereas in a car, you're in trouble if your head hits the pavement. Just wondering, I've got a line on a 300$ helmet for 25$ and was hoping it would work for on the track, too.
Nasa said:
1. Use a proper fitting helmet that meets Snell 1990 (SA1990; M1990) or newer (or equivalent) standards for cars or motorcycles.
noice, looks like the tri-point bar
Okay, thanks guys. I'm going to take a picture of the helmet and send it to HJC and ask if they can identify it so I can look up the rating for it. It supposed to be newer than 10 years old, and seemed to be top of the line at the time, so it should have some kind of Snell rating.