Bicycle Tyre Valve Nut. 4 1 out of 5 stars 63. If you have presta valves you ve probably seen your share of valve nuts.
This is a doughnut shaped airtight tube that sits inside the tyre with a valve for pumping it up that you see on the outside. Panaracer schrader valve and presta valve nut fits on presta valve stem. Place a presta nut over the valve and turn it clockwise until it is seated next to the bicycle tire rim thus holding the presta valve above the rim.
Place a presta nut over the valve and turn it clockwise until it is seated next to the bicycle tire rim thus holding the presta valve above the rim.
Get it as soon as wed sep 9. The nut is basically for ease of inflation when the tire is flat. Vacuum tire valve nut tire valve tool mountain bike fitting bicycle fitting. Your new tubes definitely come with them.