Presta valves are skinny (6mm in diameter) needle-like inner tube valves you’ll uncover on essentially all street bikes and dearer mountain bikes. The Schrader is the standard valve you find on auto tires and plenty of bicycle inner tubes. You could possibly put in a Presta valve over a rim https://networkbookmarks.com/story19739895/the-basic-principles-of-prestashop-addons