Super Tourist tubing or not, no doubt that long TT enhances the flex-magic for your 165-lb, long torso-ed body geo. nice ride!
On Tuesday, June 9, 2020 at 2:01:01 PM UTC-7, Garth wrote: > > Yeah Ted it seems I do prefer frames that have some flex in the right > places. The 531ST tubes are intended for touring, slightly thicker wall > diameter than the regular 531. OF course I know nothing of designing bikes, > but thankfully the designer/builder does and he would not do something he > wasn't comfortable with. Tall head tube, yes, I've seen taller ! Fork flex > is in the blades. > > In regards to the tubing, 531 seems to have a kind of PFM status... pure > f'n magic for their ride characteristics. > > https://www.bretonbikes.com/homepage/cycling-article-blog/87-reynolds-531-tubing-the-cycle-tourists-friend > > My takeaway from all this is that in this case a "lively" frame will feel > that way with large of range of tire quality.... whereas a frame that isn't > so lively, even with specifically "supple" tires isn't going to compensate > for it's not so liveliness. Improve the ride, yes. > > I can see how those that have both a lively frame and supple tires would > find it blissful ! > > At 165lbs or so I would have to go really low on the Bomba to get a pinch > flat as I naturally ride "light" over things. I have Big Ben 50 on there > now @25-30 psi. I'll try lowering them off the pavement and see how it > goes. As for other tires .... man it's like pie in the sky. They all look > good from afar ! Ahahaha ! > > In regards to George's mishap, I've heard him account what happened a > couple of times and what failed was the Trek frames carbon steering tube. > He was trying to land softly to the left when it was happening but since > the failure happened so fast he was a mere passenger. This was the early > days of carbon frame construction. > > > > On Tuesday, June 9, 2020 at 1:15:53 PM UTC-4, ted wrote: >> >> My Bombadil has Pacenti Quasi-Moto tires. I would think any non uber >> stout 2 inch tire would behave much the same in this respect. >> I have another more roadish bike with 47mm tires (wtb byway) I run at >> ~25psi when I want things cushy. That one does fairly well off road as well. >> Keep in mind at 20 psi, 2 psi is 10%. Do the fat bike crowd run pressures >> down in the single digits? >> My rules of thumb are: >> If your tires aren't soaking up bumps the way you want, lower the >> pressure, then lower it some more until they are. (too low may not be low >> enough) >> If you start getting pinch flats in the process, get bigger tires. >> (got the first classic pinch flat of my life yesterday, guess I should try >> 28mm tires on that bike) >> If you feel like your tires have too much rolling resistance, shop for >> more supple tires. >> I think that approach can produce satisfactory results for a lot of folks >> without going beyond 28-33 mm tires. Despite the current popularity of >> "wider is better" and asking "how wide is too wide?" there can be wisdom in >> asking "how wide is wide enough?". >> Typically it seems like tires are so much more compliant than even "std. >> diameter" thin wall tubing, that softer tires dominate wrt vertical >> compliance. Sounds like for you, not so much. First time for everything I >> suppose. >> I expect you are aware there are folks who only like more flexible extra >> thin walled "standard" diameter tubed frames. Perhaps you do too. It's good >> to know what one likes. >> I hope the stress levels in your fork blades are well below the fatigue >> limit for steel. Also that's a tall head tube, perhaps some of the flex in >> your fork is in the steerer tube? >> Have you seen the video of Hincapie in Paris Roubaix sitting bolt upright >> with his disconnected bars in his hand as he veered into the ditch and >> separated his shoulder? >> >> I think the handling of my Bombadil is somewhat different than my other >> bikes, I like it a lot for riding the hills in my local open spaces. Prefer >> other bikes for riding on roads though. >> >> >> -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/69e45144-2bca-466f-b869-6d92f650c7f6o%40googlegroups.com.
