Effects of changing tire size
How Changing Trailer Tire Size Affects Ride Height
Learn how a trailer tire size change alters ride height, using sidewall numbers to calculate diameter, radius, coupler height and wheel-well clearance.
How Tire Diameter Affects Ground Clearance and Obstacle Clearance
How to read the sidewall numbers, calculate overall tire diameter, and estimate how much ground clearance and obstacle clearance bigger tires add, plus the limits.
Tire Size Fuel Consumption Calculator: How to Estimate Fuel Economy Changes from Tire Size
How to read tire sidewall sizes, calculate diameter and rolling circumference, correct MPG or L/100 km after a size change, and know what a calculator cannot predict.
Choosing Tires for Less Road Noise: What the Sidewall Numbers Tell You
Learn which tires have the least road noise by reading sidewall numbers, calculating sidewall height and diameter, comparing tire noise labels, and choosing a quieter replacement tire size that still fits your vehicle.
Wide vs Narrow Tires: How Width Affects Tread Wear
How to read tire sidewall numbers, how tire width changes the contact patch and tread wear, and how to calculate sidewall height, diameter and circumference when comparing wide and narrow sizes.
Narrow vs Wide Tires in Mud: What the Sidewall Numbers Tell You
Narrow or wide tires for mud? Learn to read the sidewall size, calculate diameter and circumference, and see how mud depth, ground pressure and tread pattern decide which works better.
Noise-Cancelling Liners in Low-Profile Tires: What the Sidewall Numbers Tell You
How to read low-profile tire sidewall markings, identify a noise-cancelling foam liner, calculate sidewall height, diameter and circumference, and understand what acoustic foam does and does not change.
How Tire Diameter Affects Scrub Radius, Starting With the Sidewall Numbers
How a change in tire diameter shifts scrub radius through steering axis inclination, starting from sidewall size markings, with simple calculations and their limits.
How Wheel Size Affects Vehicle Aerodynamics
Learn how to read tire sidewall numbers, calculate sidewall height, overall diameter and circumference, and how wheel width, rim size and wheel design affect aerodynamic drag.
How Tire Diameter Affects Tread Wear and Tire Life
How tire diameter changes revolutions per mile and tread wear, how to read sidewall size numbers, and why tread compound, depth and fitment often matter more.