Sumitomo 5532052 ST528 All-Position Commercial Truck Tire 11R22.5 146/143K

The Sumitomo ST528 is a premium all-position commercial truck tire engineered for medium-duty trucks operating in mixed service highway and on/off-road applications. This 11R22.5 tire features a 16-ply rating (Load Range H) with a service description of 146/143K, providing reliable performance for commercial vehicles including semi-trucks, trailers, and construction equipment.

Advanced Construction Features:

• Four steel belt casing construction resists punctures, increases vehicle stability, and contributes to multiple retread cycles
• Special rust inhibitor compounds coat all interior steel belts and body ply components for extended casing life
• Additional undertread thickness provides enhanced belt package protection
• Deeper 26/32" tread depth increases time in service and provides superior traction at all wheel positions

Performance and Durability:

• Symmetric ribbed tread design enhances steering responsiveness and driving stability in all weather conditions
• Wide circumferential grooves disperse water and slush to prevent hydroplaning and improve wet weather safety
• Stone ejector buttons in center grooves prevent stone retention and protect the casing from damage
• Thick curbing ribs on sidewall help shield the casing from side wall damage and curb impacts
• Application-specific tread compounds resist chipping and cutting in high-scuff on and off-road applications

Load Capacity: Single: 6,614 lbs | Dual: 6,008 lbs
Overall Diameter: 42 inches
Sidewall: Black Sidewall (BSW)
Speed Rating: K (68 mph maximum)

This tire is designed for mounting on all axle positions and delivers the exceptional durability, long tread life, and casing integrity that Sumitomo commercial tires are known for in the toughest applications.