This is not a renovation. Renovation is to add a tread to the original carcass, and this is carved from scratch, which is more terrible than renovation and has a low safety factor. . You'd better not use it. . You can see a triangle sign on the crown. Normal tires are worn to the top of the triangle and cannot be used. They are carved after use. You can cut them down with a knife. It shouldn't be far from the wire. It is recommended to replace it quickly.