I did a lot of research and found out that this helmet is:

DOT & Snell M2005 approved. Can it be used?

Quick helmet question: I found a 3 year old Arai motorcycle helmet on the internet and a snell rating is not specified but it is called "Arai Quantum Road Racing Helmet" can this be used for the...

I'll try to come :)

How do you know what class you are in? Is there a link to an explanation of all the classes such as SA, SB, MS, etc? Thanks!

Love the pics. More please!