Our tire sizes explained guide shows what the tire size numbers mean and why. If there is any question whether or not a larger than OEM tire will fit your bike, .
These are the numbers that you're likely to see on a typical dirt bike tire. ILLUSTRATION: MOTOSPORT.COM. The first number, in this case 110 or 120, is the measurement of the widest distance between the sidewalls of the tire, in millimeters. Thus, a 120 tire measures 120mm wide while a 110mm measures wide.
Contents: Tire Safety and Care; Tire Conversion Charts; Size Types; Speed Ratings; Load Indexes. mounting new tires. Use caps (finger tight) on the valve stems to keep dust, dirt, and moisture away from the valve.. . Motorcycle Street Tire Size Conversion Chart. Front Tires. . Sponsorship – Bicycle, Moto, and ATV/