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The Dunlop valve, (also called a Woods valve or an English 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.
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- "Inner tube buying guide". 8 October 2018. Retrieved 10 October 2018.
- Sheldon Brown. "Glossary: Woods Valve". Retrieved 1 December 2010.
- Moulton, Dave (21 August 2007). "John Boyd Dunlop". Dave Moulton's Blog. Retrieved 9 January 2013.