Maybe it's from riding motorcycles my whole life but I feel like I need a mirror on my bike. Do any of you use them on your bikes? I've been checking out all the bikes I see and haven't seen any. I have seen a few people using the little ones mounted to the helmet but I think I'd like something mounted to the bar end. I guess it's something else that can break but I can't think of any other cons. What do you all think?