Commercial truck and bus tire sizes
7 posts
Low-Profile Truck Tire Sizes Explained
Learn how to read low-profile commercial truck tire size markings, including section width, aspect ratio, rim diameter, and load index, with practical examples and calculations.
Wide-Base Truck Tire Sizes and Dimensions: How to Read and Compare Them
How to read wide-base truck tire sizes such as 445/50R22.5 and 455/55R22.5: what the sidewall numbers mean, how to calculate sidewall height and overall diameter, and where those calculations stop being reliable.
Commercial Truck and Bus Tire Sizes: Common Sizes and Their Dimensions
How to read commercial truck and bus tire size markings, with calculated dimensions for 10 common sizes, off-road sizes and the limits of size comparisons.
Pickup and Light-Truck Tire Size Charts and Conversions: Reading the Sidewall Numbers
How to read LT-metric, P-metric, flotation and older truck tire sizes, convert them to inches, compare overall diameter, and understand what the calculations cannot show.
Truck Tire Chain Sizes: Matching Chains to Tire Markings
How to read commercial truck and bus tire sidewall sizes, compare width, aspect ratio and rim diameter, and use a truck tire chain size chart for single, dual and wide-base tires.
What Is Considered a Low-Profile Tire on Commercial Trucks and Buses?
How to tell whether a commercial truck or bus tire is low profile from its sidewall numbers, with aspect ratio explained, common sizes, and simple sidewall, diameter and circumference calculations.
Bus Tire Sizes and Dimensions: Reading the Numbers on the Sidewall
How to read bus tire sizes such as 275/70R22.5 and 11R22.5, separate dimensions from load and speed ratings, and calculate sidewall height, overall diameter and circumference.