Presta valves are skinny (6mm in diameter) needle-like internal tube valves you’ll uncover on essentially all road bikes and more expensive mountain bikes. The Schrader is the normal valve you discover on car tires and a lot of bicycle internal tubes. The normal Presta valve has an external thread. An https://keybookmarks.com/story19769229/the-single-best-strategy-to-use-for-prestashop-addon