Ok i had line x cover my yfz plastics. First, in the sand their nice. Easy to clean the sand off but would suck in the mud. They do not cause the plastics to bend, if anything made them stiffer. The yfz had been rolled 3-4 times with them and no damage. I had to sand blast the plastics before line x'ing them. I had textured on the top smooth underneath. Here's some pics.