On 11/13/2019 1:15 AM, Tanguy Ortolo wrote:
Hello all,

I am about to replace my mini pump with one that I would be able to
attach to the frame, and that would, hopefully, be more efficient.

While the old-fashioned mini pumps have a flexible hose, some of the
more recent ones do not. I have the impression that a flexible hose is
useful to avoid damaging the valve, but I wonder if this does not
degrades the performance (by which I mean, the ability to inflate a tire
to a correct pressure without excessive effort).

Do you have any advice on this matter?

I bought several of these https://www.ebay.com/itm/233342509995 back
when Amazon was selling them for a little less. I wanted a pump short
enough to fit in a seat bag, that was not plastic, and that could go to
at least 100psi