Sumitomo is one of the few tire manufacturers on the market that really care about customer satisfaction. Besides that, their goal is the success of commercial applications, so they look forward to providing the best equipment. For instance, the ST508 is a durable model that does its job properly in mixed services. It fits on every position of the axle, meaning that high versatility is one of its strong points. Due to that, dump trucks and ready mixed trucks get the best use from this tire.
Firstly, the ST508 features a unique aggressive shoulder design that offers extreme traction force even through mud or sand. Four zigzag shaped ribs evenly distribute pressure on the tread area and allow loads up to 8,270 lbs per wheel. Between them, we can see three rows of wide grooves shaped into a zigzag pattern that combat water retention for high safety during rainy days. Also, the deep design of these grooves doesn't allow objects to remain stuck in the rubber, thus promoting long tire life and good road grip. Secondly, a modern tread formula created specifically for heavy-duty services is highly resistant to cutting and chipping. On the inside, a durable package of steel belts enhances protection against punctures. Stiff sidewalls deny lateral forces and offer high vehicle stability at speeds up to 68 mph.
Moreover, Sumitomo supplies their clients with a 6 year or 2 recap casing warranty. The ST508 is available on the US market in a few major sizes: 12.00R20, 11.00R22, and 11.00R24.
Features and benefits
- Strong all position tire that excels in mixed service applications.
- Unique shoulder design offers increased traction on bumpy surfaces.
- Zigzag grooves combat water buildup for great road grip during rain.
- Hardened sidewalls allow for confident and responsive steering.
- The innovative rib shape minimizes the rolling resistance.
- Advanced rubber compound protects the interior from damage.
- Modern internal construction boosts vehicle stability and promotes retreadability.
