SET OF TWO: Motorcycle Inner Tube 2.75/3.00-16 - Off Road Motorcycle Tire Inner Tube - TR4 Straight Valve Stem - fits on 80/100-16 | 80/90-16 | 90/90-16 SET OF TWO: Motorcycle Inner Tube 2.75/3.00-16 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: 2.75/3.00-16, 80/100-16, 80/90-16, 90/90-16 Heavy duty durable valve stem. Unbeatable performance and value.