Commercial Tires

Roadmaster RM185

Regional Steer
The 18.5/32" tread depth combined with solid shoulder ribs make this tire ideally suited to regional haul and pick-up & delivery service. The rib edge siping is designed to promote even wear in longer hauls.

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.

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 10.79 41.42 0 6175 18.5
11R22.5 146 L 0   H BLK 7.5 - 8.25 8.25 10.79 41.42 0 6610 18.5
11R24.5 146 L 0   G BLK 7.5 - 8.25 8.25 10.94 43.46 0 6610 18.5
11R24.5 149 L 0   H BLK 7.5 - 8.25 8.25 10.94 43.46 0 7160 18.5
285/75R24.5 144 L 0   G BLK 8.25 - 8.25 8.25 10.75 41.5 0 6175 18.5