Are flip up helmets safe?

Related questions

1. How often should motorcycle helmets be replaced?
2. Are full face helmets safer?
3. Are Shoei helmets DOT approved?
4. What does dot mean on motorcycle helmets?
5. Where is HJC helmets made?
6. When was the motorcycle helmet invented?
7. Is Snell better than ECE?
8. How tight should a helmet fit?
9. What does HJC stand for?
10. What is ECE 22.05 certified?

Tags

1. #option
2. #safety
3. #intended
4. #features
5. #modular
6. #between
7. #their
8. #without
9. #rides
10. #taking
11. #however
12. #provides
13. #those
14. #helmet
15. #completely
16. #while
17. #faced
18. #riding
19. #helmets