I have always thought about using a medical grade knee brace for dirt biking. Not because my knees are shot, but because when your rippin through the bush at mach 1 and there are trees, roots, rocks and other things that can hurt you, well you just want to be safe!
I picked up a pair of the brand new Troy Lee Designs Catalyst X Knee Braces this season and I absolutely love them! Here is a little video that explains them in action…enjoy the ride! dave