Blackburn AS 1 Air Stik

Pros: OUTSTANDING customer service, solid construction
Cons: Lots of little parts to move when making the switch from presta to schrader

This is a wicked sweet pump- I'm really impressed with both its quality and the quality of the manufacturing company. I do mostly X-country MTB riding, and it has served my purposes very well and kept me from walking out of many places. Recently, a friend borrowed it to pump up a presta valve, and didnt switch the adapter correctly and ended up messing up part of the inside of the pump. I emailed Blackburn (a division of Bell Sports) and they sent me a free repair kit in a matter of days. No Hassle, just Great Service. It doesnt get much more awesome than that. And thats the bottom line :-D