I agree with Patrick M that centerpulls aren't necessarily going to give you better braking than sidepulls. In my experience, the braking from Paul Racers on my Riv Road/650b was just as "meh" as the braking with R559 dual-pivot sidepulls. OK, but not exceptional, on both counts (with new KS pads, of course).
But, the centerpulls have a clear advantage in fender clearance. The arms don't intrude upon fender space as much as the arms of the R559 did. If you can get 700 x 50 plus fenders under your R559s, I don't see where centerpulls would be a practical upgrade for you. They do look nice and symmetrical, though. On Mon, Nov 23, 2015 at 4:58 PM, Patrick Moore <bertin...@gmail.com> wrote: > My experience, which is extensive but not necessarily definitive, is that > centerpulls can be as good as other types of brakes, but that they are not > by any means necessarily better, and that they have been, IME, sometimes > worse. IOW, the type of brake is less important than the quality of it and > hardware, and the quality of the setup. > > Two anecdotes: first: I used a Dura Ace centerpull (rebranded Tourney, if > my source was right, who said that Shimano produced these for about 6 > months circa 1976 until they decided to jump on the Campy sidepull > bandwagon. At any rate, I'd used these on a commuter (or rather, just one, > the front, since it was a fixie) and found them excellent. But when I used > the same brake on my erstwhile Motobecane Grand Record grocery getter, I > found that slowing from a fast downhill roll with a heavy load was fraught > with peril -- salmon pads; squeezing harder didn't get more braking. I > replaced it with a dual pivot and felt much more secure. > > Second: Preliminary: "good" qualifying "brake" involves not only friction > force for a given hand pressure, but also ultimate braking force, and also > modulation. Top line V brakes are as powerful as anything not hydraulic, > but they don't modulate as well as other types. Ditto cable disks. OTOH, > many low profile cantis are just weak, and the Road version of the BB7 that > I used was as useless, no more and no less, as the professionally set up > Mafac cantis (longer arm Tandem version in front) on the Herse (yes, > salmons). > > Point of anecdote: in the light of the above, the *best* brakes I ever > used were IRD high profile cantis set up by Riv staff on my erstwhile Sam > Hill: as powerful as V brakes, modulated better than anything else I've > used. > > Overall point: don't sweat the kind of brake unless what you are using is > ineffective. Save you Xmas points for something useful like leather or > tweed fender flaps (or a pair of $500 plastic sunglasses). *Juuuuust* kidding > about the flaps and glasses, but you get my point. > > On Mon, Nov 23, 2015 at 3:48 PM, drew <drewbeckme...@gmail.com> wrote: > >> so. it's nearing the holiday season. people are asking me what i want, >> and this is usually where i ask for bikey stuff, but currently the bikes >> are all in pretty good shape. not a lot to work on. no accessories needed >> etc. not a bad situation to be in. after consistent prodding for gift >> ideas, i have reverted back to an old idea of switch the sam over from >> silver sidepulls to centerpulls. far from a necessary swap, but something >> to think about and do. my understanding is that the good ones can stop >> better than sidepulls and the aesthetics are nicer in my opinion. >> >> ive only ever run canti's, sidepulls or cheap vintage centerpulls. so, >> what do you like and why? im only familiar with the paul racers and the VO >> ones? what else is out there i should consider. ORRR is this not worth it >> at all and i should ask for money ill spend on groceries and paying bills. >> >> also, for context. this is for a sam running 700x50 tires w/o fenders. >> >> -- >> 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 http://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 rim of which all conditions, distinctions, and > individualities revolve. *Chuang Tzu > > *Stat crux dum volvitur orbis.* Carthusian motto > > > -- > 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 http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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