The buckle and strap is also very important related to safety issue of rider’s life. It requires the buckle and strap must be with strong capacity of retention, otherwise it will be fracture easily.
Many of us may knows that the cycle helmet should proceed the impact test, but the buckle and strap will also need to have the relative retention system and roll off test. Only the qualified buckle and webbing could be allowed to use on helmets. Therefore, a qualified bicycle helmet should be passed all relative testing for each component, which accord with safety certification test standard.