I agree about the leathers and one thing that hasn't been mentioned here is how plastic /nylon based clothes can melt into the skin from the friction of the slide. As far as helmets are concerned its your life you can be any vegetable you want if you chose to rat race at high speeds it is best to pick out a casket beforehand. The design of most Jap bikes will send you through the air like a rocket! know your skill & limitations .