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Tire Forensics and Crash Reconstruction  

Crash investigators are often tasked with determining if tire failure was the cause of, or the result of, a crash. Whether the investigation involves a motorcycle, passenger or commercial vehicle tire, it’s important to understand the design of the tire and the reasons it may fail. This class will give you the technical information needed to recognize and identify common evidence and causes of tire failure.

Topics Include

  • Why tires are important
  • Air pressure effects on tires
  • Tire performance requirements
  • Construction basics and application guidelines
  • P-Metric vs. Euro-Metric vs. Light Truck
  • Motorcycle tire basics
  • Truck/Bus Radial (TBR) basics
  • UTQG (Uniform Tire Quality Grading)
  • Materials
  • Load Index
  • Components
  • Tire deflection
  • Vehicle door placard
  • Proper tire maintenance
  • Tire/Rim Load Capacity vs. GAWR
  • Tire repairs
  • Failure analysis


Law enforcement and private traffic crash investigators, claims adjusters, engineers, attorneys, safety officers, military investigative personnel, animators and graphic designers

Course Length

8 hours

ACTAR Information

IPTM's Tire Forensics and Crash Reconstruction course is eligible for 8 ACTAR CEUs.

Your Instructor

T.J. Tennent is the Engineering Manager for Bridgestone/Firestone Products, Bridgestone/Firestone Government Products (local, state, federal and Department of Defense), Motorcycle Products and Special Projects. Prior to his current position, he was the Project Manager of Bridgestone Motorsports/Firestone Racing and the Bridgestone Motorcycle Racing Program.

T.J. is the Board Chair of the Tire and Rim Association, Motorcycle Subcommittee, and serves on the Lipscomb University Engineering Board of Advisors. He also served as Board Chair for the Society of Automotive Engineers. He is a member of the Motorcycle Industry Council, the State Motorcycle Safety Association, and is a Certified Safety Coach Trainer. T.J. has been teaching accident investigation to law enforcement for more than 10 years.



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