I thought this would make a great pump with the large pressure gauge and capacity. However, the presta connector on the end of the hose is difficult and almost impossible to connect to any presta valve. It either leaks or air will not go into the tube. Tried to switch the inner sleeve as instructed and it was worse. I have an old pump I was going to replace with this one that was very easy to connect to the valve. It this is Blackburn's new valve connector deseign, I will look to another brand as this is a very poor design. Returning this today.
