Review on Milkit Valve Pack Presta Valves by Damien Krzywicki

These valves are useless. The first one I tried to install failed with the rubber base where it was supposed to sit against the rim. I only mounted one wheel so I tried the second and despite many different tries I couldn't get the base right causing air to leak out of the valve. However, they have the advantage of being able to remove the valve core and add sealant. It hardly works. The sealant was difficult to get through the valve and a significant amount leaked out after removing the sealant injector. It held about half the air. Great concept. Didn't help and money down the drain.