ALSO.can u pls list all or some of the martial arts?WHAT's ur favorite martial art? (tae kwan do, kung fu, karate, etc.)
I suggest you go to the a motorcycle shop and ask about the visors. Basically, they are different so you need some supervision. The new for 2011 Arai Vector 2 Helmet is a complete redesign of the classic Arai Vector Helmet. The features for vector 2 is a wider face shield for better view of the road using an SAI visor similar to the shield used in the Corsair V and RX-Q Helmets.
(2m. x g)/v^2 sin 2L. L 1/2 (arcsin 2L) 12.5 degrees.
Tinted visors are legal as long as there is a BS mark. However, black visors and eridium are illegal but I find an eridium visor is the safest to wear in low winter sun and black visors are safer on sunny days. There is no difference between johnny drug dealer and a black visor only its harder to deal drugs on a bike!! and the law states that any a car can have tinted windows all around except the windscreen.