This pump is a lifesaver, I own two for each bike. Get the pump with the gauge unless you want to carry around a gauge then get the regular version of this pump. Having gauge allows for proper inflation. I commute daily to work 30 mile round trip through urban areas, some weeks no flats others 2 to 3. This pump has saved my life on so many occassions. Even during rides with my club it has come in handy for those who were underinflated. I got stuck in the middle of a nowhere bike path without my pump and spare tube and had to walk all the way back to the road and get help. Do yourself a favor if there is one accessory you definately need for a bike its a competent pump and tube.