Tire sizing systems
650b vs 700c: Bicycle Tire and Wheel Sizes Compared
How to read 650b and 700c sidewall markings, how 584 mm and 622 mm rims compare in diameter, and when the two wheel sizes are interchangeable.
Aircraft Tire Size and Dimension Chart: Reading the Numbers on the Sidewall
How to read aircraft tire sizes from the sidewall: the three naming systems, the ratings that are not dimensions, simple calculations, and how big airplane and Boeing 747 tires are.
BMX Race Tire Size Chart and Sizing Guide
Learn to read BMX race tire sidewalls: decimal, fractional and ETRTO sizes, bead seat diameters, a size chart, diameter and circumference math, and fit limits.
ISO Tire Size Standards: Understanding Size Designations and Charts
How to read ISO tire sizes on the sidewall, including width, aspect ratio, rim diameter, load index and speed symbol, and how to compare sizes using an ISO tire size chart.
Go-Kart Tire and Wheel Sizes: Charts, Markings and Dimension Calculations
How to read go-kart tire sizes such as 10x4.50-5, 4.10/3.50-4 and 145/70-6, with racing and off-road kart tire size charts, wheel size basics, and simple formulas for sidewall height, diameter and circumference.
Tyre and Rim Association of Australia Standards Manual: How to Read the Numbers on a Tyre Sidewall
How the TRAA Standards Manual relates to tyre sidewall numbers, rim dimensions, load and speed ratings, and simple size calculations, with the limits of calculated geometry and fitment.
Hand Cart Tire Size Conversion: How to Read Hand Truck Tire Sizes and Match Replacement Dimensions
How to read hand truck tire sizes such as 4.10/3.50-4, 10x3.50-4 and 260x85, convert between formats, calculate overall diameter and measure for replacement wheel fitment.
ATV Wheel Size Chart and Fitment Dimensions: How to Read ATV and UTV Tire Sizes
Learn to read ATV and UTV tire sidewall numbers such as 25x8-12 and 205/80R12, calculate sidewall height, diameter and circumference, and understand wheel fitment specs.
Electric Scooter Tire and Wheel Size Chart: How to Read the Numbers on the Sidewall
Electric scooter tire size chart with sidewall markings explained: inch, millimetre and metric formats, outer diameter and circumference calculations, solid tires, and fitment limits.
Scooter and Moped Tire Size Charts and Conversions: Reading and Comparing Sidewall Sizes
How to read scooter and moped tire sidewall numbers, convert inch sizes to metric, calculate diameter and circumference, and compare front and rear sizes for NMAX, PCX, ADV, Aerox, XMAX and Fazzio.