Thanks, John. I read Berto's article -- was it published in Bicycling? -- years ago, but I've never bothered to be as exact as the method entails. My thumbs and forefingers are pretty well educated by now, and I am thinking that even 65/70 for the Elk Passes is a wee bit high for my taste, unless I carry a heavy rear load. I think 60/65 or what my fingers feel when the pump reads those numbers might be smoother.
Segue: Nodding to Eric's mental Citroen, I briefly owned a 2 CV-derived Acadian van, which has such supple suspension that I could drive at 15-20 mph over the sharp bumps installed in parking lots without undue jarring. More gradual bumps, as on 25 mph-limit roads, could be taken at 35-40 with no undue jounce or bounce. And, the van would carry 4 58 c-c bikes with front wheels installed and saddles and bars in proper places. On Sun, Sep 11, 2016 at 3:47 PM, John Hawrylak <john.hawry...@verizon.net> wrote: > Opps , hit something & it got sent unfinished > > Patrick > > Here are the tire pressures for the 15% tire drop method for the weights > and widths you specified: > > 175 Lb + 20 lb = 195 lb total weight 45%/55% distribution > 23 27 29 > F 89 69 61 > R 112 86 75 > > 175 Lb + 25 lb = 200 lb total weight 45%/55% distribution > 23 27 29 > F 92 71 62 > R 114 88 77 > > Can't do 51mm widths > > John Hawrylak > Woodstown > > On Sunday, September 11, 2016 at 5:26:41 PM UTC-4, Patrick Moore wrote: > >> 175 rider + bike at sub 20 and another sub 25. Elk Pass tires, measuring >> ~27 and ~29 respectively; run at ~65-70. I don't sweat digits f/r, but I do >> use the pinch test to get front a wee bit softer. In fact, were it not for >> the gauge on the pump, which for all I know may be defective, I'd just go >> by feel -- indeed, I do, since the reported pressures are chosen because >> they feel right to my fingers. >> >> When I used 23 mm tires on these bikes, I'd pump those to~80/85 or 80/90. >> >> 51 mm Furious Freds with at least half miles on sandy dirt: ~18/22 or >> 20/25. I'm pretty sure that the pump gauge reads too high, and I >> occasionally check with my low pressure gauge. >> >> I remember long ago, circa 1972, learning to pump my Raleigh Sprite's >> cheap 27 X 1 1/4 tires to the 70 psi marked on the sidewall. What a >> difference! Higher pressures *certainly do* improve rolling, at least >> the feel (and no, not any goddam buzz; they were easier to pedal and went >> faster) compared to too soft -- I've verified this any number of times with >> cheap tires with heavy sidewalls. The roads in question ranged from super >> smooth to normally worn, nothing terrible or chipseal. >> >> Question: just went out to check tires with gauges and found that the >> high pressure one -- to 160 psi; steel and brass -- doesn't register >> anything despite an open valve core and road pressures as above. Does >> anyone have any idea about what might be wrong with it, and how to fix it? >> >> Does anyone have a road presta gauge, reasonably accurate, to trade for >> something or sell for a few bucks? >> >> Thanks. >> >> >> -- > 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.
