Commercial applications require the strongest tires, and here Sumitomo comes to help. Their modern ST908 exceeds all expectations on the drive axle of trucks and buses. This model is most efficient for regional services due to its innovative design and engineering. It takes advantage of many features that allow it to perform well in all situations.
For example, numerous sipes present on the blocks greatly enhance the traction force on uneven roads. It benefits from a tread depth of 26/32" that protects the tire and promotes long rubber life. Sumitomo equipped this model with a stiff open shoulder design that allows for responsive and confident cornering, thus increasing safety. A continuous center rib design allows for evenly distributed pressure on the patch area, with loads up to 8,270 lbs per single wheel. Moreover, the smart placement of the ribs greatly increases vehicle stability on the highway. Zigzag shaped grooves quickly evacuate water from the tire for decreased risk of aquaplaning, therefore allowing for safe trips during rain. Solid sidewalls on this tire improve balance on curvy roads at speeds up to 81 mph.
Furthermore, the internal construction of the ST908 offers high protection from the inside out. Specifically, it consists of four layers of steel belts that resist chips and cuts and allow for more retread cycles. Besides, it benefits from strong casing integrity due to the modern compound present in the rubber. The cutting edge technology of this tire boosts the braking power on wet and dry surfaces.
Finally, clients are backed by a 6 year or 2 recap casing warranty. This model is available on the US market in a few popular sizes, some of them being: 10.00R20, 11R22.5, and 315/80 R22.5.
Features and benefits
- Premium drive tire model that shows great results on regional usage.
- Excellent center rib design offers high cruising stability on uneven pavement.
- Siping on the lugs increases traction and minimizes rolling resistance.
- Deep tread boosts rubber life for more retread cycles.
- Advanced internal build protects the wheel from external damage.
- Zigzag shaped channels reduce water retention for safety on rainy days.
- Open shoulder design lessens heat buildup to combat irregular wear.
