Here is the high quality HUTCHINSON inner tube, in 2 1/4 to 2 1/2 by 16 inches, it is ideal for mounting 2 1/4 or 2.25 by 16 inch, 2 1/2 or 2 tires, 50 by 16 inches. We recommend it to those who want quality for their machine, even for speed and sporty driving!