THE TIRE SIZE WORKBENCH
Decode the sidewall. Compare the numbers.
A clear place to explore tire markings and compare geometric dimensions. Start with the numbers on the sidewall.
SIZE EXAMPLE225 / 55 R 17
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How to Set Up a Transparent Tire Dimension Comparison Sheet
Tire-Size Speedometer and Odometer Difference Calculator
Distinguish minimum dual spacing, wheel centerline distance and sidewall clearance
Compare measured tire footprints with section width and tread width
Investigate differences between tire-size calculator results
Identify headings and units in tire load-inflation tables
Measure tire tread depth and convert 32nds to millimeters
Read bicycle rim dimensions and distinguish them from tire width
Interpret passenger-car rim diameter, width and profile markings
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