I nin my life really missed something! Namely the Rennkompressor! Top equipment! Ride my bike 4.5 - 5 Bar and pump up air is not a problem. I was searching for an electric bicycle compressor, I have not bought luckily! The Rennkompressor of SKS is an investment for life. Oh - I have the bike this standard French valves, my wife auto valves, and our son normal bicycle valves, the valve head for all valve types is inflating a pleasure.