On Thu, 07 Sep 2017 07:57:10 -0700, Joerg
wrote:
On 2017-09-06 17:11, John B. wrote:
On Wed, 06 Sep 2017 13:29:59 -0700, Joerg
wrote:
On 2017-08-28 15:59, AMuzi wrote:
On 8/28/2017 4:28 PM, wrote:
On Monday, August 28, 2017 at 1:59:20 PM UTC-7, Joerg wrote:
On 2017-08-28 13:43, sms wrote:
I replaced the chain that I broke on Saturday with one I had in my
garage that I must have purchased five to ten years ago.
It has a connecting link and it says "Taya" on it. It's for 6,7,8
gearing. It seems okay, but I think that this is the first time I've
used a chain with a connecting link since childhood. I looked up Taya
and it's a big Taiwanese chain manufacturer.
I still have a Sachs-Sedis 7-speed chain on my road bike which I bought
from a friend as NOS, for $6 which was the old sticker price (the
sticker had already turned brownish). No link, mounted with hammer and
anvil as usual. To my utter amazement it doesn't show any measurable
stretch after over 2000mi and sometimes I really put the coals on
because of our hills. Even the old Wippermann chains could not rival
that. I am very religious about chain cleaning and lube though.
The old 5-6-7 speed Sachs chains wore out three days after the bike
was junked.
The Sedis (later Sachs-Sedis) material and Delta hardening process was
not only exceptional but unsurpassed down to today except for possibly
Record chains. That ended with SRAM.
Why is that? In the automotive world such an advance in technology is
kept and further developed, not rescinded and chucked back into the dust
bin. Well, usually.
For example, transmissions nowadays typically last the whole lifetime of
a car. 20+ years for us on two vehicles so far, for everything. Vehicle
owners would have a hissy fit if they had to swap out a chain every 5000
miles.
I think that you are confusing reality with your own fantasies. In
years past I have worked with two engineers who had worked in the
automobile industry. They both said the same thing, that the major
effort in the motor industry was to "make it cheaper". One of them
described a cash for suggestion program that Ford (I believe) had for
a time and commented that when you made a million cars the removal of
one sheet metal screw in the firewall was of interest.
You've got to do your research first and then buy the right brand and
type of car. Which I always did except for my first car after getting
the degree (learned that lessen very fast).
And what research is that? I do not remember what make of automobile
you mentioned but I do remember thinking that it was a low end model,
whatever it was. Is that research? I just looked up "best SUV" and two
out of the three best SUV's (for 2017) were Honda so I'd guess that
you must be driving a Honda. The third choice was a Ford.
As for a chain drive lasting 5,000 miles, it is perfectly feasible to
build a chain drive that will last more then 5,000 miles. Of course it
will cost more and be rather large and ugly and will, of course be
heavier then a current systems, but it can be built.... if anyone will
buy it.
What's his Face... the guy that lives in the low rent district of the
Irish Republic, did that a few years back and described how it was
done in loving detail.
I haven't bought a new chain in some time but I did see a 9 speed
chain with a price tag on it recently and it was 500 baht. In Usian
money that would be about US$15.07.
Are you telling me that people that sprint around on 1000+ dollar
bicycles worry about a bicycle chain that costs so little money? 1.5%
of the cost of the bike?
No, I am talking about people like me who also use bicycles for
transportation and not just for sports.
I'm not so sure. You talk a lot about how much you ride a bicycle and
complain loudly about chain wear while James documents his rides - I
believe that he is in the 10,000 Mile?Km? region per year, and doesn't
seem to mention chain wear hardly at all.
It would seem logical to assume that you must be riding somewhere in
the neighborhood of what? 15,000 miles a year? If you never take a
holiday that is ~40 miles every day.
--
Cheers,
John B.