Sorry if I caused any confusion, my post was supposed to be more about whether the GC610 brake model would work on the new Roadini models. I only intended to mention the reach differential between frame/fork as a "by the way" thing. I realize it's a thing on many other bikes -- I've worked on lots of other framesets where the difference is even more pronounced (and I've never been sure the cause of it). To answer the first response, I didn't intend to imply there was anything at all wrong with putting the GC700 brake both front and back (which is what I'll do).
There had been a much earlier thread wherein several people were concerned about the braking power of long-reach caliper style brakes, in particular the Tektro side-pull models. So I'd mentioned I would test the GC610 when my partner received her new Roadini. It was just interesting to me that it works perfectly well up front but not back. No big deal, the GC700 is effectively the same brake; in some respects maybe even better. On Thursday, September 22, 2022 at 7:21:55 AM UTC-7 RichS wrote: > Hello Laing, > > The QR straddle cable adjusters are a new one for me. After some quick > research it appears these are a thing of the past. > How unfortunate; what a useful design. > > Best, > Rich in ATL > > On Thursday, September 22, 2022 at 7:27:20 AM UTC-4 lconley wrote: > >> In the old days, different size brakes from and rear was normal, not sure >> exactly why - may have had something to do with horizontal dropouts. >> Schwinn Paramounts came with Weinmann centerpulls - 610 front, 750 rear. I >> have the same size combo on my Rivendell Mystery Bike and one of my >> Paramounts. Nothing wrong with 700/750 on both ends if they fit, but if the >> the shorter brake fits, it looks better and is lighter. If lighter does not >> compromise function - I always go with lighter, especially if it looks >> better. Note the quick release roller straddle cable carriers: >> >> [image: 3s.jpg] >> >> Laing >> >> On Wednesday, September 21, 2022 at 6:17:43 PM UTC-4 pi...@gmail.com >> wrote: >> >>> Is there something wrong with using GC700 on both front and rear? >>> >>> On Wednesday, September 21, 2022 at 2:49:08 PM UTC-7 Michael Doleman >>> wrote: >>> >>>> In a previous conversation I promised to post my findings on actual >>>> brake reach needs for the new Roadini frames. Specifically, I had been >>>> speculating that the Dia-Compe/Gran-Compe model GC610 center-pull could >>>> work, despite having only 61 of the specified-as-required 63 millimeters >>>> of >>>> reach. >>>> >>>> My partner just received her new 50cm model, and I've conducted some >>>> initial studies. Findings are interesting, the main one being that there >>>> seems to be a rather huge difference between reach needed for the frame >>>> versus the fork. For the fork, the GC610 very easily works, with plenty to >>>> spare. >>>> >>>> On the frame itself, it's a different matter. The brake shoe is very >>>> close to contacting the (35mm) tire. >>>> >>>> Some might argue that it could work, but don't include me in that set >>>> -- too close for comfort. >>>> >>>> So I'll be installing the GC700 model which gives another 9mm of reach >>>> and is a very nice brake as well. >>>> >>>> Side note: the fit of the rear wheel axle into the dropout was really >>>> tight. At first I didn't have the wheel set into it properly and it >>>> appeared that the reach was even greater. Make sure you get the wheel >>>> properly seated into the dropout -- with the paint, it's quite tight. >>>> >>>> I tried to add photos to this message but was told the post was too >>>> long with them. >>>> >>> -- 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/f7d1aff4-536d-4667-befb-056370c029d0n%40googlegroups.com.
