With a modular helmet, the aforementioned chin bar flips up on hinges to relaxation above the eyeport, to offer the rider some new air, wider sightlines, and a chance to converse with others. They're particularly handy at fuel stations and for quick discussions between team riders. This website uses cookies https://total-cost-of-student-vis26048.anchor-blog.com/20169322/5-simple-techniques-for-roof-helmets