Use Leatherup.com motorcycle Tire Finder to search for motorcycle tires. Browse by tire brand, vehicle type, and tire size. Tire manufacturers make motorcycle tires for specific models. You may also choose tires according to your typical riding conditions. Do you know how to read the tire code on the sidewall of a motorcycle tire? The size of your motorcycle tires is a mix of numbers each describing a dimension or characteristic: width, aspect ratio, diameter, load-carrying capacity, and speed handling capacity. Look in the owner's manual of your motorcycle to check the correct size of your tires.