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
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