SE-471-Cu Enlargement Product Name : SE-471-Cu Product Introduction Fits Honda GL1800, GL1500 and Universal rim hole .453"/11.5 mm Nickel Plated Brass for Maximum Durability 90 degree metal stems for tubeless wheel, inflate air much easier. Length : 60mm. Back Home/ Products/ Motorcycle Valve/ SE-471-Cu Home/ Products/ Car & Light Truck Valve/ SE-471 series/ SE-471-Cu