To inflate a Presta valve, you merely unscrew the valve stem anti-clockwise after which you can attach a pump. The moment the desired air tension has actually been attained, remove the pump and screw the valve stem clockwise to make certain it's airtight. The normal Presta valve has an external https://wearethelist.com/story21781942/the-2-minute-rule-for-live-chat-support-prestashop