Bicycle tires&tubes: 1. OEM manufacture 2.Certification: ISO, CCC 3.Rubber content: 10% to 50% 4. Delivery time: 20days Bicycke tires&tubes:* Brand: Customers' brand is acceptable* Valves: A/V, E/V, F/V I/V, G/V, tr4 ETC* Reasonable price with good quality* Samples are free of charge* SIZES:28’: 28X1.75, 28X1 1/2; 28X1 3/8 27”: 27X1 1/4: 27X1 3/8 26” : 26X2.50; 26X2.35; 26X2X1 3/4; 26X2.125; 26X2 ...