I had waited for these to be available for months after hearing about them and they did not disappoint. The CLIK pump head adaptor did exactly what I needed and the CLIK valve cores are just simply amazing! No more crappy pump head levers or twisting off your tubeless valves, just press and pull! Do yourself a favour and gear up.
These caps will generally last longer than the plastic ones. However, their thread is long so it takes a while to unscrew the cap and **** it back on. Also, the wings grabbing the core are thin and extended, suggesting some fragility.
The cores were easy to install. The ease to fill tires is incredible and there’s no loss of air pressure when disengaging the head of the pump from the stem.