Teach you how to choose the size of your head and the way you wear your helmet
The first: How to choose the right head circumference size according to your head type?Second: How to properly wear a helmet?Helmet wear to maintain a horizontal line, can not tilt before the tilt, some users think that the front of the helmet hat a bit of a block of sight, the helmet up a lot to get a good view, but the most correct way is to get rid of the same brim can achieve effect.