To inflate a Presta valve, you just unscrew the valve stem anti-clockwise and after that connect a pump. Once the specified air stress continues to be attained, remove the pump and screw the valve stem clockwise to be certain it is airtight. The typical Presta valve has an external thread. https://geilebookmarks.com/story19649442/indicators-on-addons-prestashop-you-should-know