Nah, 1/4inch....you're ok! That is unless you're in front of Twisty's Jury! He'll bust your but even when it's down to a 1/16th...just to bust your butt... 
I knew you were going to be a hardarse about this... :lol:twisty said:1/4th is a chicken strip. I have had bikes frames dragging the ground so a little footpage is ok keep going. a 16th then we are going in the right direction.