Cooper Tire’s Roadmaster brand has introduced the Roadmaster RM258 WD, which features an open shoulder design with four rows of lugs and is Three-Peak Mountain Snowflake certified.
Helping the tire achieve that rating are shoulder notches and chevron grooves for excellent bite in winter conditions, Cooper says. It was designed for regional applications and comes in 11R22.5 and 11R24.5 sizes with load range H.
“This Roadmaster tire is all about traction. It’s Roadmaster’s best performer in the snow and other adverse conditions for regional operators.” says Gary Schroeder, executive director, Cooper Global Truck and Bus Tire Business.
“The tire features an entirely new tread pattern and curb guards, coupled with enhanced compounding, to ensure excellent performance around town, including when hitting curbs and while on the interstate. Where other tires might slip and slide in the snow, the Roadmaster RM258 bites to give excellent performance,” Schroeder says.
Deep tread, 26/32nds, along with full-depth, 3D siping in the lugs, help the tire connect closely with the road for improved traction. Tie bars in the shoulders keep the tread from squirming, to help with uniform wear, and stone ejectors in the tread grooves help keep small rocks from drilling into the casing, improving casing life, the company says.
The foundation of the Roadmaster RM258 WD is its four steel belt construction, which allows for multiple retreads. Cooper says the tire comes with a six-year, two-retread warranty.