I just got the best mini pump I ever tried it is the Quicker Pro. It fits in the jersey, or in the seat wedge bag (I have pretty small Specialized). The bag holds two spare tubes, tube repair kit, tire mounting levers, Swiss Army knife, Crank Bros. Tool set and the pump. I also made a hose extension from a threaded Presta valve and Topeak hose with another gauge. This thing works really well. The pump works very fast, specially considering it's size. I am going to try and attach some photos. If it doesn't work, I am linking a photo page as well. Regards.



https://www.flickr.com/photos/741938...7645784865134/

I pretty much concur with this review:

http://swhs.home.xs4all.nl/fiets/tes.../index_en.html

The larger the piston diameter, the less pressure is required for the same stroke and tire pressure. That is the trick of this pump. Not as cute, but works well.