Orient Express - Cheap Chinese Rims / Wheels / Forks / Frames / Cranks / Etc

I use Topeak ones. You screw the extender over the valve (or do this before fitting tube) and then the inner knurled bit can be used to undo the valve nut. Inflate and use the knurled bit to close the valve nut. Then remove the extender. It can't come loose because it's not fitted any more.. #magnets

Cool that you can tighten and loosen the valve using the Topeak one... the one I have is just a pipe that you screw on. The biggest annoyance with mine is that it's a bugger to inflate because the join between the extender and the tyre valve is poor so air just seeps out the side.

I mainly use the "valve core" tripe but it's annoying if I get a puncture mid race because I need a different length valve on front and back.