Hi,
I've got a wheel rim that rather than being 'flat' where the spokes connect to it has a triangular cross section. This means that when you push the inflation value through from the inside of the rim it has to reach a lot further.
At first I put in a 700x38c with a Presta valve and the end of the presta would not even reach the outside of the rim so I had to discard that idea and decided that it must only take the longer and wider car type valves. I've got one of those in at the moment and it does emerge by about a centimeter or so. The problem is that my bike pump will not grip it because there is not enough length for it to get hold of. I managed to inflate it a bit with a car foot pump which gripped it a bit better.
The only solution seems to be an inner tube with an extra long car type valve, does anyone know if these exist?
I've got a wheel rim that rather than being 'flat' where the spokes connect to it has a triangular cross section. This means that when you push the inflation value through from the inside of the rim it has to reach a lot further.
At first I put in a 700x38c with a Presta valve and the end of the presta would not even reach the outside of the rim so I had to discard that idea and decided that it must only take the longer and wider car type valves. I've got one of those in at the moment and it does emerge by about a centimeter or so. The problem is that my bike pump will not grip it because there is not enough length for it to get hold of. I managed to inflate it a bit with a car foot pump which gripped it a bit better.
The only solution seems to be an inner tube with an extra long car type valve, does anyone know if these exist?