Tire size information - Metric system
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
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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.