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Old August 14th 18, 03:07 AM posted to rec.bicycles.tech
JBeattie
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Posts: 5,870
Default Homemade U-lock rack support

On Monday, August 13, 2018 at 1:39:04 PM UTC-7, Joerg wrote:
On 2018-08-13 13:12, Frank Krygowski wrote:
On Monday, August 13, 2018 at 3:13:06 PM UTC-4, Joerg wrote:
On 2018-08-13 11:34, Jeff Liebermann wrote:
On Mon, 13 Aug 2018 10:29:44 -0700, Joerg
wrote:

On 2018-08-13 08:27, Tanguy Ortolo wrote:
Frank Krygowski, 2018-08-13 17:11+0200:
Nice. If the appearance was bothersome, you could use a black tube held
in place with black zip ties.

Black tube, yes, if I can find some, but I only ever saw white tube in
hardware stores. Black zip ties, no, bad idea, as they let the tube
slide on the sides. I would rather use some black tape.

Zip ties are also bad in terms of reliability. It seems UV rays
embrittle them and then they just fall off. A while ago I chased and
stopped an MTB rider whose rear brake hose had come loose because of
that and was chafing on the rear wheel. Luckily I always have a snippet
of wire in my tool kit. Zip ties, too, but those only for temporary fixes.

You can buy UV resistant zip ties. They're loaded with carbon black
that blocks UV. However, not all such zip ties are equally resistant
to UV. Some of the cheap junk has much less than the recommended 2%
carbon black. After having an antenna installation fall apart in
about a year due to crumbling zip ties, I bought some that are genuine
Polyamide 6.6 UV resistant per ASTM D-4066PA411. No problems so far
after about 5 years:
https://www.hellermanntyton.us/bundling-securing/cable-ties/standard-cable-ties-special-materials/
https://www.hellermanntyton.us/resources/materials
https://www.solarpowerworldonline.com/2016/03/not-all-uv-rated-cable-ties-have-long-lifespans-on-solar-projects/


The one that popped was the stock tie from a high-Dollar Specialized
MTB. I can't imagine them being cheap on zip ties. Metal is generally
better.


When I wrote my post above, I considered ending with "Of course, Joerg would use
hose clamps." Now I'm sorry I resisted that impulse.


No hose clamps, wire :-)

a. Costs less that a cable tie.
b. Lasts almost forever. Well, at least longer than you and I will.
c. Much less visible.
d. Leaving the ends longer can provide extra wire for stranded cyclists.


Extra wire for stranded cyclists? I have yet to encounter a stranded cyclist who was in need of wire. For what? A roach clip? "Hey there mister, say, could you spare some wire? I sure could use some wire, mister."

You'd be better off carrying some 5M hex screws. You already have rope. you should carry some extra wheels. https://janheine.files.wordpress.com...g_to_cross.jpg

At what point is your bike so trashy that you would mount a U-lock carrier with wire -- and not even a hose clamp.

-- Jay Beattie.
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