i’m looking for a mini pump. Had a not so good experience with CO2 and don’t want to repeat that. ever. This one is only 55 grams and looks trick in carbon fiber. Comes with a bottle cage mount. Selling on ebay for 30 bucks btw.
http://www.topeak.com/2007/products/minipumps/microrocketcb.php
anyone every actually pumped a tire with it?
Yes, I have one. Works, but be prepared for some serious hand/palm pain after! Takes about 5,678 strokes to fill a tire 
Completely useless to fill a MTN bike tire I have found out …
dude! are you serious? like how long did it take to get good pressure?
Would work OK if filling a 650c 19mm tire
takes several minutes of frantic pumping to fill a 700c 23mm tire with reasonable “firmness”. Would take at least 10 mins to fill the large volume of a MTN bike tire.
I carry one on long rides as an emergency back up after I use up my C02, spares, patches, etc. In other words, 2-3 flats in 1 ride. Not very likey, but the thing is really small