Treadsley Testing Services
Real-world testing services for tires, automotive components, fluids, lubricants, and related products operating in their intended applications.
Explore testing servicesIndependent Automotive Testing, Research, and Education
Real-world testing services for industry, plus consumer tire tools and educational resources designed to support better decisions.
Quick Summary
Treadsley is an independent automotive testing, research, and education organization operated by Treadsley Holdings LLC.
The website has two public sides: Treadsley Testing Services for real-world testing and consulting, and consumer tire tools and learning resources for personal, non-commercial education.
Consumer Tire Tools
Practical calculators and tire reference tools for size comparison, tread depth conversion, pressure conversion, distance conversion, DOT lookup, and wear-rate estimates.
Open consumer toolsTire Learning Center
Plain-English guides that help drivers better understand tire sizing, tread depth, UTQG, tire wear patterns, and tire-related vehicle measurements.
Open learning centerTest Consulting
Program design, route development, inspection planning, data collection structure, and field validation support for internal testing teams.
View consulting servicesIndependent testing and education in one place
Treadsley connects real-world testing experience with public-facing tire education and research tools. The testing side conducts industry programs that need reliable real-world data. The consumer side helps drivers understand tire measurements, wear, maintenance, and performance-related information without marketing noise.