No thread on my inner Tube valve?

[ianrauk]

I prefer threadless, saves damage the rubber grommet in the pump attachment.
To fit the pump head, I simply pull the valve down with my right hand & push down on top of the tire with my left to hold it in place while I push the pump head on to it... Simples, no wonky valves in our house...

I never seem to have wonky valve syndrome either.

 

[I like Skol]

Another reason to use the threaded ones and fit the locknuts is if you get a flat the tube won't move round inside the tyre. If you have a plain unrestrained valve stem the tube can move and the stem ends up sticking out at an angle. I've lost count of the number of old wheels I've encountered with displaced tubes.

The tube moves around when a flat tyre is ridden on regardless of if there is a locknut fitted or not. The amount of tilt on the valve does not indicate the amount of stretch in the tube, in both cases the valve becomes a fixed point that the tube tugs against as it tries to creep around inside the rotating tyre.

 

[Ajax Bay]

use the threaded ones and fit the locknuts

See 'found a bargain' thread, John.