at what mm should u replace ur tires mines at 4mm
2/32 or roughly 1.5mm is the legal limit in most places but tires actually lose a significant amount of wet weather traction when they get below 4/32 (3 mm) remaining tread depth as this is the point where many of the smaller tread grooves and sipes begin to disappear. Thus, while it is legal to drive tires that are below 3mm tread depth, safety is impaired.
look at the tread of the tire there is a little raised peice that runs across the tire. this is called a wear bar. once the tire tread is to the same level as the wear bar. it is time to replace :)
