Presta valves are skinny (6mm in diameter) needle-like inner tube valves you’ll discover on practically all highway bikes and more expensive mountain bikes. The Schrader is the normal valve you find on auto tires and lots of bicycle internal tubes. Very easily skip YouTube video clip sponsors. Whenever you visit https://atozbookmark.com/story19608772/how-much-you-need-to-expect-you-ll-pay-for-a-good-presta-addons