Presta valves are skinny (6mm in diameter) needle-like inner tube valves you’ll find on just about all highway bikes and dearer mountain bikes. The Schrader is the normal valve you discover on car or truck tires and many bicycle interior tubes. The conventional Presta valve has an external thread. An https://hindibookmark.com/story21612972/the-single-best-strategy-to-use-for-presta-addons