my stupid question
#5
Boost Pope
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Direct from the horse's mouth:
For more detail, here are the actual standards themselves:
M2005
SA2005
What are the differences between the SA, M and K standards?
The SA standard was designed for competitive auto racing while M standard was for motorcycling and other motorsports. The K standard was released to accommodate helmets used in karting. There are three major differences between them:
Source: FAQs about Snell and HelmetsThe SA standard was designed for competitive auto racing while M standard was for motorcycling and other motorsports. The K standard was released to accommodate helmets used in karting. There are three major differences between them:
- The SA standard requires flammability test while the M and K standards do not.
- The SA and K standards allow for a narrower visual field than M standard (Some SA and K certified helmets may not be street legal).
- The SA and K standards include a rollbar multi impact test while M standard does not.
For more detail, here are the actual standards themselves:
M2005
SA2005
#9
Senior Member
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Location: Falls Church, VA
Posts: 1,361
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Then get an SA helmet with a wider/taller viewport. That's one of the reasons I bought a Bell M4 Sport (SA2005). It allows a huge field of view compared to many others I tried on, and I have no problem seeing everything I need to see on track. It was also budget-friendly, under $400. Some SA helmets do have teeny tiny claustrophobia-inducing eye slits, but not all.
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