Good to know; the question is becoming clearer. Your experience is with XT and SLX hydros which presumable have the sort of greater leverage Jeremy spoke of.
On Fri, Jun 23, 2017 at 12:51 PM, Clayton.sf <clayton...@gmail.com> wrote: > Patrick, > > To answer your last question. I have never used BB7, but my XT and SLX > hydros have kept the pads away suffiently after setup. > > - with QR axles setup involves initial centering in the stand with a > follow centering after a few miles on the trail. > - with Thru axles setup involves initial centering in the stand with no > follow centering (so far at least). > > Best, > Clayton Scott > SF, CA > > > > > On Friday, June 23, 2017 at 11:38:19 AM UTC-7, Clayton.sf wrote: >> >> One more thing. Thru axles so far have eliminated the second re-centering >> that used to be required after the first few miles of riding after wheel >> re-installment. >> >> Disclaimer: I am super sensitive to things. Other people may not notice >> or care to this degree. >> >> Clayton "Princess and the pea" Scott >> SF, CA >> >> >> On Friday, June 23, 2017 at 11:31:01 AM UTC-7, Patrick Moore wrote: >>> >>> For me, the bottom line is having the pads sufficiently far from the >>> disc to prevent that frequent rubbing that comes from very small changes in >>> the rotors' trueness, or from dirt or water on the pads; that's part 1. >>> Part 2 is, to get this distance without compromising braking power *and* >>> without >>> compromising lever feel, which practically speaking means that the levers >>> don't bottom out as you reach peak braking power. >>> >>> With my former MTB BB7s and Tektro V brake levers, I could get the pads >>> far enough from the rim, as above, but then the levers would almost bottom >>> out when squeezing hard. >>> >>> Doubtless I could simply ignore how the Tektro levers felt, but I didn't >>> want to ignore it. >>> >>> By "fiddling" I mean finding it hard to achieve this balance, and >>> finding it only by involved adjustment and re-adjustment. Once again, my >>> disc benchmark is my current BB7 Roads and Shimano road levers: pads far >>> enough out, levers feel and act surprisingly like those on my road bikes >>> with good quality single pivots (the discs stop at least as well, if not >>> better). >>> >>> So: the question for me is, will hydraulics keep the pads from rubbing >>> as well as my current BB7s do, yet have good lever travel and feel, and >>> brake at least as well? I assume that the last criterion is an easy "yes", >>> but what about the other 2? From the earlier discussion, I understood that >>> hydraulics will *not* as easily accomplish 1 and 2 as my BB7s. >>> >>> On Fri, Jun 23, 2017 at 12:16 PM, Bill Lindsay <tape...@gmail.com> >>> wrote: >>> >>>> "If hydraulics are just a fiddly as, or even more fiddly" >>>> >>>> I guess I need a definition of the term 'fiddly'. When I hear the word >>>> 'fiddly', my brain hears "I'm not a mechanic, and I don't know how things >>>> work, and no matter how much random wrenching I throw at this subsystem of >>>> the bike, it never works well. Don't ask me what I tried because I don't >>>> remember" >>>> >>>> I think you, Patrick Moore, mean something other than that when you say >>>> fiddly, but I don't know what that definition is. The point with >>>> hydraulics is that you don't adjust them. They adjust themselves. If 'to >>>> fiddle' is a synonym of 'to adjust' or 'to tune', then you don't do any of >>>> that. You basically set them up. >>>> >>>> Setting up a hydraulic disk brake involves resetting the brake pads >>>> (spreading them wide open with a suitable plastic brake pry-bar). Then you >>>> put the wheel in, and you pump the brake lever. The pistons work their way >>>> in until the brakepads find the rotor. Only when they hit the rotor to the >>>> return springs make the pistons open a tiny bit. That's it. You are >>>> done. If you think the caliper is off center in some way, reposition it >>>> and start over. There is no adjustment, no fiddling. So, I think you >>>> would say they are less fiddly because you don't have to fiddle with them, >>>> but you better like them, because you can't fiddle with them, at least not >>>> in the way I think you would consider important (pad clearance from the >>>> rotor). >>>> >>>> Bill >>>> >>>> On Friday, June 23, 2017 at 10:57:38 AM UTC-7, Patrick Moore wrote: >>>>> >>>>> This is good to know. If hydraulics are just a fiddly as, or even more >>>>> fiddly (depending on the make and model) than good mechanical discs, then >>>>> I >>>>> have no need for them. I suppose I'd want them for riding really steep >>>>> technical stuff, but for my sort of riding, any good cable operated brake, >>>>> disc or rim, is easily adequate. >>>>> >>>>> So, I'll scratch hydraulics. Now, to learn if the 2-sided actuated >>>>> mechanicals are easier to set up for less rub and more power than single >>>>> action ones like the BB7. Once again, I am very happy with my BB7s, so >>>>> seeking out Spyres or whatever they are would be like dropping Julia >>>>> Roberts to pursue Cindy Crawford (I'm out of date, I know it, but these >>>>> are >>>>> the only pretty faces I can think of at the moment). But if Spyres (or >>>>> whatever) allow bigger pad distances with the same or better power, then >>>>> they might be worth buying at some point. Me, I haven't found adjustment >>>>> for pad wear a matter needing attention, with the BB7s I've used. >>>>> >>>>> On Fri, Jun 23, 2017 at 10:31 AM, Bill Lindsay <tape...@gmail.com> >>>>> wrote: >>>>> >>>>>> Thanks Jeremy >>>>>> >>>>>> This is the reason that I suspect the OP Patrick Moore would dislike >>>>>> hydraulic brakes. Or, more accurately, why his reaction to hydraulic >>>>>> brake >>>>>> X would be binary. Either it will self-adjust to perfect, and he's love >>>>>> them, or they would self-adjust to imperfect, and he'd hate the inability >>>>>> to do much about it. >>>>>> >>>>>> Bill >>>>>> >>>>>> On Friday, June 23, 2017 at 8:04:55 AM UTC-7, Jeremy Till wrote: >>>>>>> >>>>>>> Hey Bill--no that's right, hydraulic calipers don't really give you >>>>>>> any adjustment other than alignment. I was noting that some hydraulics >>>>>>> seem to run with their pads a bit further from the rotor than others, >>>>>>> and >>>>>>> that as with mechanical rim brakes, this seems to be related to the >>>>>>> leverage characteristics of the braking system. >>>>>>> >>>>>>> >>>>>>>>>> -- >>>>>> 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-bun...@googlegroups.com. >>>>>> To post to this group, send email to rbw-owne...@googlegroups.com. >>>>>> Visit this group at https://groups.google.com/group/rbw-owners-bunch. >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> *30% Supply and Demand discount, listmembers only, on all resume, >>>>> LinkedIn, and writing services, until Demand equals Supply! And there's >>>>> more! 10% kickback for any referral resulting in fully paid, list-price >>>>> contract. And still more! I am offering services in trade for a road >>>>> bike, >>>>> or frame and parts, that are period compatible with my AM hub, circa 1937 >>>>> to 1961. See my website for what I do and what I charge; email for >>>>> details.* >>>>> >>>>> 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 >>>>> ************************************************************ >>>>> **************************** >>>>> >>>>> >>>>> >>>>> -- >>>> 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-bun...@googlegroups.com. >>>> To post to this group, send email to rbw-owne...@googlegroups.com. >>>> Visit this group at https://groups.google.com/group/rbw-owners-bunch. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >>> >>> -- >>> *30% Supply and Demand discount, listmembers only, on all resume, >>> LinkedIn, and writing services, until Demand equals Supply! And there's >>> more! 10% kickback for any referral resulting in fully paid, list-price >>> contract. And still more! I am offering services in trade for a road bike, >>> or frame and parts, that are period compatible with my AM hub, circa 1937 >>> to 1961. See my website for what I do and what I charge; email for details.* >>> >>> 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 >>> ************************************************************ >>> **************************** >>> >>> >>> >>> -- > 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. > -- *30% Supply and Demand discount, listmembers only, on all resume, LinkedIn, and writing services, until Demand equals Supply! And there's more! 10% kickback for any referral resulting in fully paid, list-price contract. And still more! I am offering services in trade for a road bike, or frame and parts, that are period compatible with my AM hub, circa 1937 to 1961. See my website for what I do and what I charge; email for details.* 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 ************************************************************************** ************** -- 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.
