What does twi mean on car tires?
Tire wear Indicator Tire wear indicator. The tires of the car tires to the mark. According to the wear of the tire to choose the time to change the tire, all tires in the pattern depth of 1.6 mm there are wear marks, where there are wear marks have a small bump, the boss called "tread wear mark" Boss next to the "tread wear mark" abbreviation "TWI", in the normal use of the premise, the tire wear to reach this raised place, it means the need to replace the tires.
