Inner Tube 130/90-16 TR4 Straight Valve Stem - fits on 140/80-16 | 140/90-16 | 150/80-16 Motorcycle Inner Tube 130/90-16 TR4 Valve Stem TR4 Valve Stem: Straight Stem, Round Shape to fit on rims with a round valve base. Fits on these Tube Type Tires: 5.00/5.10-16, 130/90-16, 140/80-16, 140/90-16, 150/80-16 Heavy duty durable valve stem. Unbeatable performance and value.