Airwave dh mtb tubedownhillers demand thicker tubes for the more rock strewn and root infested technical courses pinch flats are a common sight at the world cups airwave dh tubes are designed to not pinch flat with thicker tube wallsfeaturesbutyl tube etrto 212 6 559 presta valve length 40mm schradler or presta versions weight 330g presta buyairwave wheels tyresfrom chain reaction cycles the worlds largest online bike store