Vee Rubber bicycle air hose The two-wheel air hoses made of natural rubber are very robust and have high security - reserves. The high strain behavior of natural rubber can be a covering of several tire dimensions with only one tube size to. Vee Rubber has more than 30 years the leading manufacturer of motorcycle tires and tubes and is as OEM for many top brands worked. Valve: TR4 valve straight Wall thickness: 3.0 - 4,5 mm Suitable for the following tire sizes: 2.75-21 3.00-21 80 / 100-21