On Sun, 03 Jul 2016 10:41:25 +0700, John B. <
slocom...@gmail.xyz>
wrote:
>"Back in the day", bicycles were usually assembled without using any
>form of thread locking device/material and very seldom did anything
>fall off.
>
>Today it seems that everything has loktite on it.
Back when I was a terror on 2 wheels (early 1960's), I would ride
around on my bicycle with most everything almost ready to fall off.
Just about everything on my various bicycles was loose. What saved
the bicycle from self disassembly was rust, dirt, and grease. The
combination of dirt and grease on bolts, threads, studs, etc acted
much like thread locking compounds, except it was applied on the
outside. It took about the same amount of time for the rust, dirt,
and grease to form as it did for the bolts to work themselves loose.
Since I never bothered to clean the bicycle, the arrangement worked
quite well, and little hardware was lost. Banging on the handle bars,
tolerating rattles, and tying down hardware with kite string was
deemed normal.
Today, people actually clean their bicycles, which I believe is
responsible for the plague of thread locking compounds. Lost are the
benefits of rust, dirt, and grease to deal with loose hardware. On a
clean bicycle, things are more likely to fall off than on a rusted or
dirty bicycle. This tends to attract product liability litigation,
which might suggest that the manufacturer was selling a device that
might suddenly self-disassemble causing grievous injuries worthy of
astronomical awards. Worse, the common availability of thread locking
solutions might suggest that the manufacturer knew about the problem,
ignored the obvious solutions, and is therefore negligent. Since
pre-coating the fasteners with rust, dirt, and grease is not an
acceptable solution, thread lock is used. Whether it is needed or
does anything useful is not part of the question.
>The front forks also have a little sign on them saying "failure to
>tighten this nut may cause the wheel to fall off".
That's the warning label problem. Part of the judgment of a product
liability suit is usually a recommendation by the court that a warning
label be affixed to the faulty device to inform users of the hazard.
Such warnings allegedly convert the plaintiff from an grievously
injured victim of a hazardous product, to a complete idiot unable to
read and follow instructions.
<
http://forums.mtbr.com/passion/when-mountain-bike-warning-labels-go-too-far-940742.html>