Originally Posted by BostonFixed
What exactly do the leetle rubber tubes do to/with the dunlop valves?
AndrewP is probably right - the early Dunlop valves were just a rubber tube inside the metal valve bit- same principle as a heart valve they let air in but collapsed to prevent air from coming out
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only the dead have seen the end of mass motorized stupidity
Plato
(well if he was alive today he would have written it)