if you are unshaw about the condition of you tracks you need to change them as a track braking at speed can be very serious may even result in death, its posible when snaps at speed can come over the top .our group have three half tracks and use them as thay should be driven to and from events and clock about 700miles each a year with little of no problems if thay are looked after, and we even go up hills without engageing front wheel drive