Dunlop valve
The Dunlop valve, is a type of pneumatic valve stem in use - mostly on inner tubes of legacy bicycles - in some countries, such as Japan, Korea, India, Pakistan, Sri Lanka, many European countries, and a number of developing countries. It has a wider base than a Presta valve, similar enough in size to a Schrader valve to use identically drilled valve holes in rims, but it can be inflated with a Presta valve adapter. The inner mechanism of the valve can be replaced easily, without the need for special tools.
The inventor was C. H. Woods. It superseded Dunlop's original valve for pneumatic tyres.Dimensions
External thread: x 32 TPI
