Mark, as I wrote in my last post, I never dispute someones personal experience. If you feel you are getting better braking out of the low profile brake, stay with it.
I don't have the energy now to wade through the mathematics of the first article you linked, but the second one clearly makes my point, the straddle wire wants to be 90o to the brake arm, hence hi profile wants hi straddle and low profile wants low straddle. Disks and V brakes were originally designed for mountain bikes and although they may work well on tandems and touring bikes, that is not their design goal. Disks have a reputation for overheating and warping on tandems. I have ver little experience with V brakes, but as long as they don't crowd the fender I can't see why they wouldn't work as well as traditional cantis. I guess what we agree on here is how well Pauls brakes work. Michael On Tuesday, September 1, 2015 at 1:50:01 PM UTC-4, Mark Reimer wrote: > > I can also lift my rear wheel off the ground on my CX bike with > neo-retros, though it takes some doing. I have a high straddle cable for > mud clearance and optimal straddle cable angle. The touring cant's have a > lower straddle, same brake pads on both sets. I've always found the touring > canti's to stop me much faster and have better modulation. > > When it comes to the physics of it, I usually defer to this article, which > says it all much better than I can: > > http://www.circleacycles.com/cantilevers/canti-geometry.pdf > > And this one, for great photos of examples: > http://www.blackmtncycles.com/2013/03/get-most-out-of-your-canit-brake.html > > All this does make me curious to try lowering my neo-retro straddle cable > for increased mechanical advantage. My experience mimics how the first > linked article describes a straddle cable which is too high - feels great > at the lever, but doesn't have as much stopping power as you'd hope for. > I'll try lowering it a bit and see if I can increase my stopping power. > > Either way, I love Paul canti's and canti's in general. But I still affirm > that the next time I do loaded touring in the mountains and I'm coming down > at 75km/h on a 90lb bike, in the rain maybe, I want v-brakes or discs. > > On Mon, Aug 31, 2015 at 5:59 PM, Michael Hechmer <mhec...@gmail.com > <javascript:>> wrote: > >> Mark, I'm disinclined to dispute someones personal experience, but yours >> doesn't match mine. I wonder if your experience comes from set up. The >> neos want a hi straddle cable and the touring a very low one. This makes >> sense to me from my, admittedly limited, knowledge of Newtonian Physics. I >> have never used the touring cantis but have had a pair of neos on a pair of >> singles for many years. They can easily lift my rear wheel off the ground >> and stop my bike in short order. >> >> In addition the Paul's site says this about the neos: >> >> These are very powerful brakes and have a tendency to over power thin >> tubed frames (in any material). For none- too-stout frames and forks >> we recommend our Touring Canti >> <http://www.paulcomp.com/touringcanti.html>. >> >> And this about the touring canti: >> >> The Touring Canti is a powerful cantilever brake with a similar design to >> the Neo-Retro <http://www.paulcomp.com/components/neoretro.html>, but >> with the arms angled upward. This gives the brake a much narrower profile >> without significantly reducing stopping power. >> >> I'm 71, and together the tandem team is 140, so we are not thrill >> seekers. We ride the hills of Vt unloaded quite successfully with >> theRacers on our tandem and tour in gentler terrain with the tandem fully >> loaded. I'm looking for increased tire clearance w/out any loss of power. >> >> Peace, >> Michael >> >> >> >> >> On Monday, August 31, 2015 at 10:15:22 AM UTC-4, Mark Reimer wrote: >>> >>> No way Neo Retro's on a tandem in my opinion. I have the neo-retros on >>> my CX bike and the touring canit's on my Atlantis. The touring canti's have >>> substantially more stopping power than the neo retros. However, they still >>> aren't anywhere near what I'd consider safe when descending a steep >>> hill/mountain with a heavy load, particularly in the rain. >>> >>> Mini motos would have tons more stopping power than the canti's, but >>> fender clearance would be the bit challenge as the cable is quite low. As >>> was mentioned, the moto-lite's would ensure you can use basically any tire >>> you want (with a fender) and have the most stopping power of any Paul >>> brake. Just need to have a long-pull brake lever. >>> >>> On Monday, August 31, 2015 at 8:16:37 AM UTC-5, Matthew J wrote: >>>> >>>> Mini-Motos have excellent stopping power, are easy to set up and look >>>> very good. I was not able to get the front brake to work over a fender >>>> however as the cable between the two sides is relatively low compared to >>>> other Mini-Motos. I did not want to use cantis so wound up using TRP >>>> mini-vs instead. >>>> >>> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "RBW Owners Bunch" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/rbw-owners-bunch/hGcB32Y0e8g/unsubscribe >> . >> To unsubscribe from this group and all its topics, send an email to >> rbw-owners-bun...@googlegroups.com <javascript:>. >> To post to this group, send email to rbw-owne...@googlegroups.com >> <javascript:>. >> 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. 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. 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