Yeah, I recall trying to get my 19 mm racing tires to 120 psi back in the day. And I was young and strong.
The other problem was that, because it has no check valve, if you were not careful, the plunger would kick back and, if the pressure was high enough and you were not quick enough, kick back with enough force to shoot the entire plunger mech entirely out of the tube into the distance. That happened to me at least once. But for getting F Freds to 25 or 30 psi max, no prob except for gunky valves. BTW, I've read Jobst sneering at wimps who found the Impero too hard to use. His analysis of the problem: you lack upper body strength. On Sun, Jan 22, 2017 at 4:32 PM, Steve Palincsar <palin...@his.com> wrote: > > On 01/22/2017 06:13 PM, Patrick Moore wrote: > >> Actually, the Impero, besides ultimate coolness, is not so impractical >> after all with my fattish and lowish pressure F Freds. >> > > The Silca Impero was designed in a day when 70 psi was really high > pressure. It's got a large bore and moves a lot of air with each stroke; > that makes it easy to get a tire up to a certain pressure fast, but as > pressure increases enormous strength is required. You can almost use the > bulging of the veins in your forehead and neck as a pressure gauge. > > > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rbw-owners-bunch+unsubscr...@googlegroups.com. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > Visit this group at https://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- Resumes, LinkedIn profiles, bios, and letters that get interviews. By-the-hour resume and LinkedIn coaching. Other professional writing services. http://www.resumespecialties.com/ www.linkedin.com/in/patrickmooreresumespec/ Patrick Moore Alburquerque, Nouvelle Mexique, Vereinigte Staaten ************************************************************************** ************** *The point which is the pivot of the norm is the motionless center of a circumference on the contours of which all conditions, distinctions, and individualities revolve. *Chuang Tzu *Stat crux dum volvitur orbis.* *(The cross stands motionless while the world revolves.) *Carthusian motto *It is *we *who change; *He* remains the same.* Eckhart *Kinei hos eromenon.* (*It moves [all things] as the beloved.) *Aristotle -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
