Harley-Davidson valve caps covers come in a set of five (5) for $13.95. They will fit on all standard valve stems. This includes all cars, trucks, SUVs and yes all Harley-Davidson Motorcycles. Durable, weather-resistant, chrome plated plastic TPM compliant standard valve cover fits all standard auto air valves. Includes inner "O" ring seal ensuring a clean valve ofifice maintianing consistent tire pressure.