which frame/hand pump do you use?

[Eden]

I saw that, too.

The seals may very well be good for that much. My upper body strength, OTOH - don't know if my physics is correct or not, but I think with a bore of roughly half a square inch in area, that means you'd have to generate over 300 pounds of force between your hands.

I might be able to leg press that much (1RM). Between my hands, uh, not.

it takes my full body weight forcibly applied a floor pump to get 140 psi into my TT wheels.....

I was mainly impressed by that number as my old pump would put about 40lbs of pressure in the tire before it started popping off the valve stem.... useless.... but claims are one thing and the real world is another, which is why I insisted on testing it before I bought it.