You can, if tipping over, try to remember to keep your hands and arms in though - wrists and collar bones are fairly fragile and can break if you stiff arm the ground. I know I tend to keep my hands on the bars as I fall, which is good and bad. I think I may have broken my thumb this summer.... the cable sticks out of the controller right above where my thumb sits. I thought I just sprained it badly, but now (yeah months later) that all of the soft tissue swelling is down I still have a big hard bump on my right thumb that I certainly don't on my left.