Jerking this thread slightly off-topic: does anyone know of a combined brake booster/housing stop? I refer to the arch brake boosters that used to be sold for mtb cantilever brakes 30+ years ago to stiffen fork legs and stays for more solid braking.
Reason: my Matthews #2, the equivalent of a 60 cm or greather c-c with level tt (actual: 58 c-c with upsloping tt and extended head and steeer) but built for 559 wheels has hugely long steerer and head made from skinny relatively lightweight tubing, with the resultant tendency for front brake grab and chatter. The precision-built Paul Neo Retros in front minimize this so that there is only the vaguest ghost of shudder -- it's acceptable -- but it still happens under hard front braking. A more-or-less fork-crown-level stop would remove the forces causing steerer flex. However, the Matthews does not have a drilled crown, and I can't drill a hole for a crown-mount hanger because the fender mounting boss takes up too much room inside the crown.* I expect I'd pass on such a device, even if one is available, for aesthetic reasons -- again, residual chatter is minimized by the Pauls -- but I'd like to know if one is available. * A tangential observation: IME with several bikes built with threaded fender mounting bosses inside the bottom of the steerer, it's very hard to get enough threads underneath a caliper brake mounting bolt, unless you "artificially" extend the steerer below the crown. I've stripped the threads of several such bosses built for caliper brakes rendering the boss unusable while the ruined boss remains to block installation of a steerer daruma. The Matthews #2 was built for cantilevers and therefore does not have to accommodate a caliper mounting bolt, but with the boss designed deep enough for enough threads to be secure, there's no room to drill it for a fork-mounted housing stop. On Fri, Nov 17, 2023 at 11:11 AM JohnS <sharp...@gmail.com> wrote: > This is timely, the Shove Research FMBCH... > > https://shovelresearch.com/fork-mounted-brake-cable-hanger > > Bling for the bike, about the same cost as the RH. > > Back to Adam's point that fork mounted hangers won't work with center pull > brakes, seems to me someone should make an integrated backing plate/hanger. > That would nice! > > JohnS > > > On Thursday, November 16, 2023 at 5:16:32 PM UTC-5 Patrick Moore wrote: > >> One factor in reducing front brake cable friction is a gradual, "natural" >> bend in the housing between its exit from the bar tape (aero levers, of >> course) and where it meets the stop. If your stem is high so that the >> housing leaves the bar tape (I'm assuming you use aero levers) far above >> the housing stop then I expect that a hanger with the angled noodle can >> actually make the bend tighter and less efficient for cable travel. >> >> Because my errand road bike (2020 Matthews custom) has a high stack -- >> upsloping tt and extended steerer and head -- the stem and therefore the >> bar is positioned relatively low above the headset. When I built the bike I >> installed a very nice, stiff, steel Shimano hanger but it has only about 1 >> cm of drop. Together with the close bar the housing has to bend tightly >> when it exits the tape to meet the hanger. In this case, the angled noodle >> on the PS hanger would allow a more gradual bend. >> >> I recently bought a Rene Herse cable housing hanger, paying $59 because >> no one else offers a stiff, silver, steerer-mount housing hanger with a >> deep drop. While the Shimano hanger drops 1 cm, the RH drops fully 3.5 cm >> and will allow a much more "natural" bend. >> >> I have to confess that the tight bend with the short Shimano hanger >> hasn't caused a great deal of cable friction, but there's room for >> improvement, and since this is a "nice" bike I want to reduce it to the >> minimum possible. The longer RH hanger will do that. It also makes the >> housing bend look nicer. >> >> Tektro offers a deep-drop hanger for about $13 but that one is quill >> mounted so that you lose a cm of drop because it is clamped above headset >> locknut and a thin spacer. Of course, the PS hanger not only clamps to the >> quill but it's about a cm shorter than the Tektro and RH hangers. >> >> >> On Wednesday, November 15, 2023 at 10:05:03 PM UTC-5 Adam wrote: >> > Hi all, >> >> > Does anyone have experience with the problem solvers front cable >> hanger? The one with a built-in "cable noodle"? >> >> > I had an LBS install Paul racers on my hillborne and they used one of >> these. Changing the brake cables this week, I realized what an odd setup >> the cable noodle thing is, it puts a 45ish degree bend in the cable for no >> real reason. I'm > thinking that I should change the setup, any >> recommendations? Or is this not an issue? >> >> > When I changed the cable, the little plastic sleeve inside the cable >> noodle was cracked. Seems like a potential issue for no real purpose that I >> can see. Unfortunately there isn't an actual cable stop built into the >> hanger, so I think the > whole setup may need to be changed. >> >> > Thoughts, advice? >> >> > Here's the part: >> >> > >> https://www.thebikerschoice.com/product/problem-solvers-clamp-on-cable-hanger-182078-1.htm?variations=926322,926354?utm_source=google%20shopping&utm_medium=organic&cmp_id=18999470602&adg_id=&kwd=&device=m&gclid=CjwKCAiA9dGqBhAqEiwAmRpTCxJ5qK9TD6hipo0RYCdZIeE5F_M3FbHVnzmIbVVSUoKWshTJSoWaCRoCHJMQAvD_BwE >> > -- > 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/2b05d43d-e6ad-4cac-a729-4dd11f559660n%40googlegroups.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/2b05d43d-e6ad-4cac-a729-4dd11f559660n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- ----------------------------------------------------------------------------- Patrick Moore Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum ----------------------------------------------------------------------------------------------------- Executive resumes, LinkedIn profiles, bios, letters, and other writing services. ----------------------------------------------------------------------------------------------------- *When thou didst not, savage,* *Know thine own meaning, but wouldst gabble like* *A thing most brutish, I endowed thy purposes* *With words that made them known.* -- 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/CALuTfguYE2Aw5E4Mc0u1TikyfXWkw8FLfZA9iqeTBC-AtUvC2g%40mail.gmail.com.
