- SP011 delivers 8% higher ice-starting performance than the previous SP001 tire.
- The new tire offers over 20% improved longevity while maintaining winter performance.
Sumitomo Rubber Industries has announced the launch of its new SP011 studless tire for trucks and buses, scheduled to enter the market in August. The company developed the tire to achieve a strong balance between ice-starting capability and extended service life, addressing key performance requirements for commercial vehicle operators navigating harsh winter conditions.
The SP011 incorporates a newly designed tread pattern that enhances block rigidity while improving overall durability. The tire also features an increased number of edge elements that strengthen the scratching effect on icy road surfaces. This design approach helps improve traction during vehicle start-up on ice while maintaining the durability needed for long-term operation in demanding environments.
To further boost performance, large-sized eggshell particles have been integrated into the tread rubber compound. These particles enhance the tire's scratching effect on icy surfaces, contributing to improved ice-starting performance. At the same time, the tread compound has been engineered to minimize the reduction in tire lifespan that can sometimes accompany traction-focused enhancements.
According to the company, the SP011 achieves on-ice starting performance that is 8% higher than its existing SP001 studless tire. In addition, the new tire delivers longevity improvements of 20% or more compared with the current model. These advancements are intended to provide fleet operators with improved operational efficiency and reduced tire replacement frequency.
Another notable feature of the SP011 is the optimization of sipe depth. This design ensures that the tread center block retains the edge elements necessary for winter traction even as tire wear progresses. By maintaining these critical features throughout the tire's lifecycle, the SP011 helps reduce the decline in winter performance that can occur with prolonged use.
The new tire also marks a first for truck and bus tires by adopting a retread guide sign. This feature is designed to assist users in identifying suitable timing for retreading, supporting tire lifecycle management and helping maximize value from the product over its operational lifespan.
Frequently Asked Questions
What are the key improvements offered by the SP011 studless tire?
The SP011 studless tire is designed to improve both winter traction and durability for trucks and buses. Compared with the previous SP001 model, it provides 8% higher ice-starting performance and more than 20% greater longevity. The tire achieves these improvements through a new tread pattern, increased edge elements, optimized sipe depth, and the use of large-sized eggshell particles in the tread rubber. These enhancements help maintain winter performance while extending service life.
What is the purpose of the retread guide sign introduced on the SP011?
The retread guide sign helps users determine an appropriate point for tire retreading during the product's lifecycle. By providing a clear indication related to retread readiness, the feature supports more effective tire management for commercial vehicle operators. The adoption of this technology is a first for truck and bus tires and is intended to help maximize tire utilization, improve maintenance planning, and enhance overall operational value.
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