A motorcycle cover fitment chart is primarily used to match a specific motorcycle make and model with the correct size cover (e.g., Small, Large, XXL, or Trike) to ensure a secure and protective fit. These charts prevent buying a cover that is too small, leaving the bike exposed, or too large, causing issues with flapping in the wind or trapping moisture. Here is what a fitment chart is used for, based on common industry practices:
Matching Manufacturer to Size: Identifying which universal size (S, M, L, XL, XXL, or Trike) fits specific bike styles like sportbikes, cruisers, touring, or adventure bikes.
Accounting for Accessories: Helping riders determine if they need a larger size to accommodate windshields, saddlebags, luggage trunks, or sissy bars, which significantly change a bike's dimensions.
Matching by Dimensions: Comparing a bike's actual length, width, and height to the specific cover dimensions listed in the chart.
Preventing Damage: Ensuring a proper, snug fit that keeps the cover from touching the ground—where it can trap moisture and cause rust—and from flapping in the wind, which can scratch paint.
Ensuring Optimal Protection: Ensuring full, top-to-bottom coverage against UV rays, rain, and dust.
What to Look for in a Fitment Chart
Notes Column: Look for notes indicating whether a windshield or rear box requires a larger size than the standard model.
Dimension Reference: The best charts provide the physical L × W × H of the cover itself to compare with the measured size of your bike.
Model Specificity: Searching by year, make, and model is generally more accurate than just guessing by the bike type.