Okay, I just spoke with my buddy (the tech). He says that it doesn't have to be SA unless you're runing 7.49 or faster (in the 1/4-Mile) So, as long as it's Snell 2000+ even if it is (M - Motorcyle) then it will fly.
Okay, I just spoke with my buddy (the tech). He says that it doesn't have to be SA unless you're runing 7.49 or faster (in the 1/4-Mile) So, as long as it's Snell 2000+ even if it is (M - Motorcyle) then it will fly.
7.49 or faster? sheesh, i guess that leaves me out then...dammit, gotta take the slow car! lolOriginally Posted by FAHHQUE700
cool. i figured a helmet that's designed to whack the pavement at hight speeds can also stand up to a cage. a few companies i've spoken to said the only difference in their M and SA rated helmets were nomex/proban liners rather than cotton/polyester fibers.
You are by no means wrong. A helmet should hold up either-or, in my opinion. The new M2005+ helmets have nomex inner liners; well at least my Shoei does... I'm sure there are more "technical" explanations behind the usage of M and SA helmets for NHRA/IHRA rules, but I couldn't tell you because I have no idea. Only one thought came to mind... a motorcycle helmet is made to crack upon a heavy impact. Maybe the SA helmets are more buoyant, to take repetitive impacts? Just a thought?
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