Commercial Tires

Roadmaster RM120

Long Haul Trailer
Wide shoulder ribs resist scrubbing and rib edge sipes promote even wear. Stone ejectors enhance casing durability by helping to prevent stone drilling.

Engineered for Retreadability
A cool-running base compound, combined with the 4-belt construction is designed to resist stone penetrations, to deliver the durability and retreadability fleet owners expect.

**Multi-Purpose Size
The 255/70R22.5 is designed and acceptable for use on trailers, straight trucks and recreational vehicles.

Cooper Tire recommends not mixing the "A" and "non-A" products in a dual assembly on the same tractor or trailer to ensure the best mileage of performance.


Sizes and Specifications
Tire Size Service Description UTQG Load Range Sidewall Approved Rim Width Measured Rim Width Section Width Overall Diameter Tread Width Max Load Tread Depth
11R22.5 144 L 0   G BLK 7.5 - 8.25 8.25 10.88 41.11 0 6175 12
11R22.5 146 L 0   H BLK 7.5 - 8.25 8.25 10.88 41.11 0 6610 12
255/70R22.5 140 L 0   H BLK 7.5 - 8.25 7.5 10.16 36.68 0 5510 16
11R24.5 146 L 0   G BLK 7.5 - 8.25 8.25 10.89 43.13 0 6610 12
11R24.5 149 L 0   H BLK 7.5 - 8.25 8.25 10.89 43.13 0 7160 12
285/75R24.5 144 L 0   G BLK 8.25 - 8.25 8.25 10.81 40.92 0 6175 12