Tire size information - Metric system

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models

The common format for these numbers is AAA/BBC-DD (e.g., 110/90H-18). Explanation:

• AAA: This number refers to the width of the tire in millimeters (see tire width conversions table below). A quick conversion from inches to millimeters (4 inch × 25.4 = 101.6 mm) gives us a value of 101.6 mm. Using metric sizes, either a 100 mm, 110 mm, or 120 mm wide tire would work on the 2.15 inch wide loop frame rims.
• BB: This number refers to the height (aka: profile or aspect ratio) of the tire as a percentage of the width of the tire.
• C: This letter refers to the speed rating (see speed ratings table below).
• DD: This number refers to the diameter of the rim in inches.