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Question 23
Posted by bob on November 10, 2004
Why do trucks with set-back axles seem to have more tire wear issues than trucks with set-forward axles?
The majority of set-back axle trucks are seen in regional haul applications in order to take advantage of the sharper turn angle enabled by this design. The disadvantage to this design is that more weight is located in front of the axle which increases both the lateral and drag forces transferred to the tire. All of which contribute to accelerated wear relative to a standard axle placement.
Another reason could be that regional service trucks tend to experience more scrubbing/curbing than a typical line haul service which increases wear issues if the proper tire is not specified for the application.