Blackburn Air Stick. Comes with it's own frame attachment that screws into the bottle-holder holes. The pump is held in place by tension (clips into two arms) and a velcro strap. I've had it on two bikes and it has never even remotely looked like falling off. I don't give a fart what it looks like on the bike and I don't care to mess with CO2, so it works for me! Rated up to 140 psi, btw.