Sumitomo ST-709 STEER (NO DC)

Beefy 20/32nd" tread depth applied to a wide, flat casing for 10% more rubber volume than our predecessor design, for much longer life in high scuff applications.
Chevron block center ribs with lateral sipes effectively cut water film on wet roads for enhanced traction and safety.
Thick curbing ribs help shield the casing from sidewall damage.
Stone ejectors protect the casing from damage in the base of the groove.
An innovative design device helps control irregular wear during on-highway use.
Suitable for high-speed regional transport, local P&D, school buses, equipment haulers, refuse trucks, and even urban dump trucks primarily operating on paved surfaces.

Regional steers have to be durable across a broad range of conditions. The ST 709 is durable enough when there's serious work to be done, but versatile enough to display on-highway manners.