
Tread cutting. This is dangerous!
Many motorists are now trying to save on tires, looking for cheap options on bulletin boards. There you can find a wide selection of used tires, but you should be very careful. A tire with a deep tread can have a cut tread when examined in detail.
Tread cutting is a method of extending the life of a tire by cutting a new tread pattern or deepening the existing grooves and channels on the tire. This method is actively used in truck tires. Due to the fact that truck tires have a solid metal carcass, its resource is greater than the resource of the tread, so welding and cutting of the tread are actively used there. But there the tread strip is initially designed for this. The layer of rubber in the depth of the grooves is thick, and even after the tread is worn out and a new one is cut, there is enough layer of rubber to the layers of the breaker to move safely. Cutting is usually done with a special P-shaped knife that is heated to make it easier to cut the rubber. This is usually done manually. In a passenger car tire, the under-groove layer is thin, and it is easy to cut through to the internal protective layers. This will lead to water and dirt entering the internal layers and rusting. In addition, the thin layer of rubber that remains after cutting will not protect against damage from various stones and debris on the road. Cut tires are unsafe, and it's better to consider buying the most budget-friendly, but new tire.