... color can be made Bicycle Butyl Inner Tube Our advantage: 1. Most competitive price2. Making with good quality raw material3. ... ": 27x1 1/4, 27x1 3/8; 26": 26x2.50, 26x2.35, 26x2x1 3/4,26x2.125, 26x2.10,26x1.95,26x1 3 ... /4, 26x 1 1/2, 26x1 5/8,26x1.50, 26x1 ... ; 20": 20x2.50, 20x2.30, 20x2.125, 20x2.20,20x1.95, 20x1.75; 18": 18x2.125,18x1.75; 16": 16x2.40 ...