Tracks are unusually tough. If you fix, carry a sharp knife with you, that way if it starts to come apart and hit you can cut a peice off and continue back to base camp. Did this 1 time for 60 miles @ 40 miles an hour. Once the reinforcement rods start to break on the ends your time is limited. I also had a track split and come completely off , wrap around and hit me in the helmet top. Old track of course. You really have to be "on it " and pay attention, like said above , could do more damage , especially loaded with studs.