The Dunlop valve, (also called a Woods valve or an English valve) is a type of pneumatic valve stem in use in Japan, Czech Republic, Russia, the Netherlands, Germany, Britain, Finland, Sweden, and developing countries. It has a wider base than a Presta valve, similar in size to a Schrader valve, but it can be inflated with Presta valve adapter. The inner mechanism of the valve can be replaced easily, without the need for special tools.[Definition via Wiki]
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