Most of the trike riders I've met don't bother with the flags any longer. I do because I like the belt & braces approach. However my husband forgot to put the flags on his trike the other day and he said he felt fine. I think I'm so cautious/risk averse that I'll continue using them - with the inevitable expense when they fly off at speed down hills (this has happened twice - we've had to get new flags).Crackle said:True. I think I'd have seen a bent but the trike is even lower is it not and so many of them have flags on that they must feel it's an issue.