2.50/2.75-16 motorcycle inner tube is available. Also there aremany for various of types of gasoline or electric scooters. 2.50/2.75-16 ... motorcycle inner tube : Sell both motorcross tyre and motorcycle tubeless tyre Tyre size: 2. 25-16, 2. 25-17, 2 ... . 50-14, 2. 50-16, 2. 50-17, 2. 75-14, 2. 75-17, 2. 75 ...