20 x 4 0 inner tube straight valve Brouette pinch flats and internal friction

pinch flats and internal friction

a material known for its excellent airtightness and ability to maintain pressure over time

This structure provides increased resistance to repeated loads and demanding conditions

30 (55-589)

50-inch tyre section width (ISO size: 350-6)

20 x 4 0 inner tube straight valve Brouette pinch flats and internal frictionList of compatible tyre sizes These bicycle inner tubes are designed to be fitted to large 20 inch tyres. If the size printed on your tyre sidewall appears in the list below, you can order these inner tubes with complete confidence. 20x4. 0 (98 406) 20x4. 0 (100 406) 20x4. 0 (102 406) 20x4. 0 (103 406) Cant see your tyre size in the list above? In that case, these inner tubes are not compatible with your bike. Have a look at our other 20 inch inner