I have a friend that I snowmobiled with. He never rode dirt bikes so I tried to convert him to dirt bikes by letting him ride my XR650R while I was on my 525. He did pretty good but eventually he bit it hard and hurt himself and the bike. Bent radiator but not leaking, bent handlebars, twisted forks. I told him to forget it since I knew it could happen when I put him on it. He would have paid for it but I was the one trying to convert him from snowmobiles to dirt bikes. We are still good friends but he has no desire to ride dirt bikes. I guess I could have put him on my KX500 I didn't have the KDX220 at the time.