Bridgestone Ecopia H/L 422+

In the US, the Bridgestone Ecopia H/L 422 Plus carries UTQG treadwear grades of 600 to 700, depending on size, with traction A 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 limited treadwear warranty of 40,000 to 70,000 miles, depending on size and speed rating (20,000-35,000 miles on the rear of a staggered fitment). New tread depth is 9-11/32" (7.1-8.7 mm), depending on size.

Across its range, the Bridgestone Ecopia H/L 422 Plus most commonly carries EU label ratings of C for fuel efficiency, D for wet grip and 71 dB for noise.

The Bridgestone Ecopia H/L 422 Plus is available in 10 sizes, ranging from 225-255/45-55 R18-20.