Bridgestone Dueler H/T 685

In the US, the Bridgestone Dueler HT 685 carries a UTQG treadwear grade of 520, with traction A-B and temperature A-B. UTQG treadwear is relative: a tyre graded 400 lasted four times as long as the reference tyre, graded 100, on the government test course. Bridgestone backs it with a 50,000-mile limited treadwear warranty. New tread depth is 10-16/32" (7.9-12.7 mm), depending on size.