Heidenau two-wheeled air hose The Heidenau two-wheeled air hoses are consistently made of natural rubber. This material is very robust and has high safety reserves. Furthermore, the significantly higher elongation behavior can also cover many tire dimensions with only one hose size due to the oppositely synthetic material (butyl). - Valve straight - Valve type 34 G - wall thickness 2.0 mm - Valve position: Center of the hose Suitable for following tire sizes: 160/70-17 170/60 - 17 170/55-17 180/55-17 190/50-17 200/50 - 17 210/50-17