To inflate a Presta valve, you simply unscrew the valve stem anti-clockwise and after that attach a pump. Once the specified air strain has actually been attained, take out the pump and screw the valve stem clockwise to be sure it really is airtight. Then, visit our Knowband retail outlet https://bookmarkjourney.com/story19753299/the-single-best-strategy-to-use-for-presta-addons