Courtesy of RPM Cyclery of Lake Elsinore, California.
Protect The Valve When Pumping – An important valve tip: they’re not indestructible. They’re at the most risk when you’re pumping up the tire using your frame-mounted pump. To protect the valve, always support it by holding the end of the pump that’s on the valve in such a way that you can hook a thumb or finger over the tire. That way, as you push to inflate the tire, you’re pushing against your hand and not the valve, which will bend or break if you push against it alone