Presta valves are skinny (6mm in diameter) needle-like internal tube valves you’ll come across on practically all street bikes and dearer mountain bikes. The Schrader is the normal valve you discover on car or truck tires and several bicycle internal tubes. The regular Presta valve has an external thread. An https://socialbuzzfeed.com/story5229926/indicators-on-addons-prestashop-you-should-know