The CX-50, in addition to a fixed straddle cable has spacers for the pads. You measure the cantilever post spacing, measure your rim width, and consult a table (a PDF on the Shimano site) to choose the best pad spacer.
I have these brakes, they work great, and I may have paid $30 for a bikesworth, brand new. Highly recommended, even with the black pads that are about due for a Koolstop upgrade. Philip Santa Rosa, CA On Monday, April 15, 2019 at 5:52:08 AM UTC-7, Steve Palincsar wrote: > > I'd be very surprised indeed if the cx70 had more power than the Rene > Herse cantilever. The low profile design is noted for losing power as the > pads get closer to the rim. > > Low profile cantilevers like this are very sensitive to straddle cable > adjustment, whereas mid-profile cantilevers like the Herse brake are > insensitive to it. All the complex documentation about canti adjustment is > based on the low profile design's sensitivity to height of the straddle > cable support. None of that is applicable to the Herse design. > > In both these cases, it should be noted, the straddle cable length isn't > adjustable per se; with the Shimano style various lengths of straddle cable > are available. A longer straddle cable was promised at one point for the > Herse brake, for special applications, but I'm not sure if it's been made > available yet, as I don't see such a thing listed on their web site. > > As for ease of setup, the Herse brake isn't like some smooth post > cantilever brakes. Yes there is one nut holding the post in place and on > loosening the bolt you can slide the pad in and out, rotate it and tilt > it. But it's not quite like some, where undoing that one nut loosens > everything - vertical, toe, and all the rest. There is no vertical > adjustment, and toe is set either permanently once by bending, or using a > notched washer. There also is no adjustment for spring tension. > > > On 4/15/19 12:59 AM, Drw wrote: > > Oh man, > Those compass ones look super nice but I’d take the setup and power of the > cx70/50 any day over those any day. I’m no expert mechanic but I’ve used > cantis that with the way the compass ones do and, for me, they are a big > pain. At this point I > > > -- > Steve Palincsar > Alexandria, Virginia > USA > > -- 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.
