specialize in motorcycle tire and inner tube, many size for your reference, 45% rubber content,6pr/8pr tire,good quality
2.25-16, 2.25-17, 2.50-10, 2.50-17, 2.50-18, 2.75-14, 2.75-17, 2.75-18, 3.00-8, 3.50-8, 3.00-10, 300-12, 3.00-14, 3.00-17, 3.00-18, 3.25-16, 3.25-18, 3.50-10, 3.75-19, 110/90-10, 90/90-18, 100/90-10 etc. 

Bicycle tyre and tube:

13x21/2  13x11/2  18x21/2  20x1.75  20x2.125  24x13/4  24x13/8  24x2.125  24x1.75  24x1.5 26x1.5  26x1.75  26x2.125  26x1.95  28x11/2   121/2x21/4