Tire tread

WARNING
Although the applicable federal motor vehicle safety laws consider a tire to be worn when the treadwear indicators (TWI) become visible at approximately 1/16 inches (1.6 mm), we recommend that you do not allow your tires to wear down to that level. As tread depth approaches 1/8 inches (3 mm) the adhesion properties on a wet road are sharply reduced.

Depending upon the weather and/or road surface (conditions), the tire traction varies widely.

Mark 1 is a visual warning on the tread wear indicators (TWI). The arrow indicates the placement of the tire tread.

Do not drive with tires which have too little tread depth. tire traction on wet road surfaces decreases significantly when the tread depth is less than 1/8 in (3 mm).

Tread wear indicators (TWI) are required by law. Six indicators are positioned over the tire tread. They are visible once the tread depth is approximately 1/16 in (1.6 mm). If this is the case, the tire is so worn that it must be replaced.

The recommended tread depth for summer tires is at least 1/8 in (3 mm). The recommended tread depth for winter tires is at least 1/6 in (4 mm).