Yokohama Tire Corp's newest long-haul trailer commercial truck tire, the RY587 MSC, is designed to meet the increased maintenance demands of long-haul commercial truck drivers. Based on the design of the RY637 steer axle tire, the new tire is designed for on-highway trailer use.

The RY587 MSC reduces both suspension component wear and irregular tire wear, using technology developed on steer axle tires. This tire also uses the firm's Stress-wear Control Groove (SCG), which reduces tire and suspension component wear by minimizing pressure at the edge of the tread. Reduced pressure results in reduced free-rolling wear and longer, even wear over the life of the tire. Stone ejector ribs prevent stones from reaching the bottom of the groove where premature casing damage can start.

Yokohama also designed a Belt Edge Cushion and Edge Cover Sheet that bond together and allow steel belt flexibility. Additional flexibility reduces strain and increases casing life.

Finally, Yokohama incorporated a fuel-efficient rubber compound into the design of the RY587 MSC. The compound, forged with curing technology, lowers average cost per mile of the commercial trucker by providing long wear and reducing rolling resistance — without sacrificing grip.

Casing design is based on a computer-generated casing profile to maximize overall tire life by reducing heat and internal tire stress. Additionally, the RY587 MSC is designed using existing Strain Energy Minimization (STEM) technology.

The tire design also enhances wet traction. A five-rib tread design allows for effective water evacuation from under the tread, reducing hydroplaning. Extra-deep sipes maintain sharp edge effect, boosting wet grip until the late stages of wear.

For full details, contact Yokohama, 601 S Acacia Ave, Fullerton CA 92831.