Hi, all.
Here's a chance to join me in over-thinking something. And a chance for
those-who-know-stuff to help one-who-doesn't.
To me, "squishy" means the braking action doesn't seem as closely linked to
my squeeze of the lever as I feel it could be. Definitely subjective,
definitely "I know it when I see it", and definitely "YMMV" territory.
The context is a diamond-frame (i.e. heavy rider edition) Bike Friday 2014
New World Tourist (has canti-/v-brake posts). It's only the rear brake
(posts on the chainstays). The brake has always worked, just not with the
solid feel of, say, the Paul Love&Motolite combination on my Hillbornes
front and rear, nor even of the Paul Canti&MiniMoto front on the Bike
Friday itself. (So maybe this isn't just "over-thinking" but also
"whining".)
Squish had been substantial from the beginning and through a couple each of
pad-changes, brake-changes and lever-changes. The changes were "lateral" in
the sense that the new stuff wasn't purchased as generally better, just
different. The squish did vary some over those changes, but not much.
Finally the squish moved from "substantial" into "moderate" territory when
I moved to Paul Canti Levers; clearly the levers accounted for some squish.
So...
I have thoughts below on what might be the remaining squish reasons (to be
ignored by those who know better):
Do I just accept that the brake will have squish because
1. a brake with 2ish meters of 100% housed brake cable needs
better-than-Jagwire-Sport housing *- perhaps mitigated by better housing*
2. the chainstays are flexing *- perhaps mitigated by some kind of
stiffener ("brake booster"?)*
3. the posts are flexing *- (no idea what one could do here)*
4. the brakes I've tried so far (nothing special, not super-cheap but
defintely not expensive) flex(ed) too much *- perhaps mitigated by
getting a Paul brake to work (I just assume a Paul would introduce less
squish) or find some low-squish brake which just works as is*
5. something else entirely *- (?)*
Can anyone rank likely causes so that I could prioritize mitigation
efforts? And I would definitely appreciate any suggestions for any
mitigation choices (e.g. Which "better housing"? What "low-squishy brake"?).
Yours,
Thomas Lynn Skean
who does like himself a stiff drink... uh, brake
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