Presta valves are skinny (6mm in diameter) needle-like inner tube valves you’ll locate on basically all road bikes and more expensive mountain bikes. The Schrader is the normal valve you discover on automobile tires and lots of bicycle inner tubes. Some pumps, for example this Silca Gravelero, attribute reversible chuck https://checkbookmarks.com/story5320599/the-basic-principles-of-prestashop-live-chat-support