Rapid pressure build-up
"Quick and effortless pressure build-up. The end cap that screws onto the valve means that valves are not damaged, unlike lever pumps, which tend to bend valves. The downside of removable tubeless valve shells is that when you unscrew the pump tip, the shell tends to unscrew with it, causing the tire to deflate completely. I recommend not screwing the pump tip all the way in, but screwing the valve obus all the way in. Apart from that, it's an excellent choice of pump."
