Road Bike Presta Valve Length
The hole where the valve stem goes through the rim of your wheel is drilled to fit either schrader or presta valves.
Road bike presta valve length. Presta valve inner tubes are available from a range of makers with valve lengths up to 80mm. I have noticed that presta tube valve stems come in various lengths. You will not be able to use the pump at your local fuel station to pump up tires with a presta valve. Wider than a presta valve and typically the same circumference top to bottom often wrapped in rubber when used on wheels.
The diameter of a schrader valve 8mm is greater than the diameter of a presta valve at only 6 mm. To inflate or deflate a presta valve the top section must be unscrewed allowing the core of the valve to be free to move. A schrader valve is easier to use than a presta valve. Road bike valves are called presta.
Always make sure your valve is inserted vertically do not have a valve leaning over to. The depth of the rims is 42mm. My friend s local bike shop stocks inner rubes that come in 42mm length 45mm length 60mm length 65mm length 80mm length and 82mm length. The outer wall is threaded to accept a cap or pump head.
You can buy valve extenders to add length to your valve. Best road bike tyres. Mountain bike tyre sizes are usually stated in inches. Always check your valve to make sure it has no cracks or splits in it.
Schrader valves will not fit your bike wheels. I m about to order a couple of spare inner tubes for my road bike. The oem ones are funnily enough the perfect length and also unthreaded so my pumps clamp on brilliantly. Presta valves are valves which have a slimmer stem sometimes threaded to accept a locking ring which holds it tight in the rim drilling.
So a 29 inch mtb tube will have the same diameter as a 700c road wheel while a 27 5 inch tube will be the same diameter as a 650b road wheel.