TechnicianVision · Knowledge base
Back-To-Basics: Tire Tread Pattern
I-CAR · June 11, 2025
Summary
This article outlines the fundamental characteristics of symmetrical, directional, asymmetrical, and asymmetrical-directional tire tread patterns. It explains how these patterns dictate specific mounting orientations, rotation directions, and vehicle placement limitations that must be followed during collision repairs and drivability diagnostics.
What to do on the job
Verify the tire tread pattern and sidewall markings (such as rotation arrows, 'Inside', or 'Outside') before mounting, rotating, or replacing tires to ensure correct orientation and vehicle placement.
How to use it
Use this document to justify the labor time required for correct tire mounting, balancing, and positioning during suspension repairs or wheel alignments. It helps defend the necessity of replacing mismatched or directional tires that cannot be safely rotated or swapped due to tread pattern limitations.
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