Hi Zaelia, tire pressure is dynamic, and should be based on the rider/bike weight as well as the width of the tire and riding conditions. No one pressure is best. Bicycle Quarterly made a cool little calculator that Philip updated and Jim posted here (oops, may not work anymore, thanks Google). I use it and have been VERY satisfied with it's recommendations. FWIW, my total weight (me + bike) was 200lbs and I ran CdlVs 60 back, 35 front. Never a pinch flat.
http://www.biketinker.com/tire-pressure-calculator/ http://www.biketinker.com/2010/bike-resources/optimal-tire-pressure-for-bicycles/ On Sun, Aug 7, 2011 at 4:33 PM, Zaelia <caddic...@gmail.com> wrote: > My last pair of Panaracer Col de Vie tires said "keep inflate to 50 > lbs" [sic]. I often inflated them to roughly 60 psi (with a little > more air in the back tire). One mechanic noted on a sales receipt " 65 > psi (overrating) at client request". I cannot recall where, but I read > somewhere that people were inflating their tires in this range. > > I had these tires for over a year and roughly 2500 km (1553 miles) and > didn't have any known issues. A friend was the one to suggest it was > time to get new tires after looking at the sidewalls and noting some > striation. Could over inflating shorten the life of these tires? > > My new tires have Japanese writing on the sidewall (very helpful) and > "300kPa (30kgf/cm2). Google calculated for me that 300 kPa is > 43.5113213 pounds per square inch, so this is roughly what I inflated > the new tires to. > > So, I'm wondering > * could over inflating shorten the life of these tires? > * why the two different pressures for the same tires? > * what do other Panaracer Col de Vie users inflate their tires to? > > Finally, when I bought the first pair, I bought a spare because I was > led to believe it would be so difficult to get 650B tires. It has been > hanging in a dark closet. What is the life of a tire kept like this? > The next time I get new tires, should I use this spare and hang a new > spare? > > Thanks > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > To unsubscribe from this group, send email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rbw-owners-bunch?hl=en. > > -- Cheers, David Redlands, CA *...in terms of recreational cycling there are many riders who would probably benefit more from improving their taste than from improving their performance.* - RTMS -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
