Sumitomo's line of tires shows us that performance and comfort can be combined into the ultimate product. The engineering of the ST717, which is a regional all-position model, just proves that by delivering the best results on buses, trucks, and even trailers. It fits just as well on any position of the axle, so it is a good example of high versatility. It is both tough and fuel efficient, meaning it will always get the job done.
Firstly, this model benefits from the popular five rib pattern that ensures better vehicle stability on several types of pavement at a max speed of 68 mph. Closed shoulders with a unique external design along with micro siping on the sides efficiently eliminate heat accumulation and offer increased lateral grip. The ST717 takes advantage of four zigzag grooves that evacuate water as quickly as possible to ensure good traction and a low risk of aquaplaning. A modern pattern of sipes is present on the ribs to help towards lowering the rolling resistance, thus ensuring safety and longevity.
Secondly, the internal construction of this tire can handle loads up to 9,090 lbs per wheel with ease. Moreover, it offers enhanced road stability along with high protection from damage. Specifically, the four steel belts on the inside are durable enough that no punctures can go through them. This resists scrub and scuffing, for an increased number of retread cycles. Sumitomo upgraded this model with curved sidewall ribs that combat lateral forces and ensure confident steering through sharp corners.
Above all, Sumitomo provides their customers with a 6 year or 2 recap casing warranty. This model fits best on any commercial vehicle from local pickups to long distance applications. It comes in many hard to find sizes such as 9R17.5, 11R17.5, 13/80 R20, and 14/80 R20.
Features and benefits
- Tough and budget friendly regional tire that fits all positions of the axle.
- Well structured four steel belt package resists chips and cuts for long rubber life.
- Advanced patch compound combats irregular wear and promotes long mileage.
- The innovative five rib design allows for increased traction on uneven roads.
- Smart placement of sipes enhances the water dispersion for safety during rain.
- Micro sipes on the shoulders boost the lateral grip of the tire.
