I think the only thing I'm missing is a tandem left captain crank for the
left sync chain. Of course, I don't have an eccentric[1], so now I have to
figure out how I want to deal with tensioning it.
[1] Is there any technical reason they couldn't have made eccentrics in
the BMX BB sizes? It's only 2.7 mm different. Bah!
I've considered that question myself. Having looked inside a lot of
American BB shells of various vintages, and having had a good look at
a few different flavors of tandem eccentrics, I've come to believe
that many American shells can't handle it. Some of them have tube
ends protruding slightly into the bore, some (like the plentiful
Electro-Forged Schwinns) don't really have that much continuous
cylindrical surface inside, and others are simply made of material
that's too thin or too weak to withstand an expanding-wedge type
eccentric adjuster. Most of the well-made, eccentric-ready shells
I've seen were on BMX bikes made in the last 15 years-- which don't
have any practical use for another means of chain tensioning.
Tandem eccentric shells are just a touch larger in diameter, which
helps, but mainly they are all thick-walled, round, smooth inside, and
machined square to the tube axis. In the future, if parts
manufacturers want to breathe new life into the American shell by
standardizing it more comprehensively, they can choose to define the
standard (or an ancillary standard) in such a way that it is possible
to use an eccentric adjuster.
Okay, that all makes sense then. It's still a touch frustrating, but it does make sense admittedly.
I just rediscovered Sheldon's article about home built tandems. Now to decide between ghost chainrings, 1/2 links, chainwheel muckery, or pulleys or other hacks.
-- Dane Buson - sigdane@unixbigots.org "Gravity always wins."
-- Ryan Cousineau rcousine@sfu.ca http://www.wiredcola.com/ "I don't want kids who are thinking about going into mathematics to think that they have to take drugs to succeed." -Paul Erdos
Nify, I suspected such a thing might exist. It looks like it's cheaper to buy the conventional tandem crank ($35) than the BMX alternative though.
-- Dane Buson - sigdane@unixbigots.org It is against the grain of modern education to teach children to program. What fun is there in making plans, acquiring discipline in organizing thoughts, devoting attention to detail, and learning to be self-critical? -- Alan Perlis
In article <1179747259.300805.281930@z24g2000prd.googlegroups.com>, cat0020 <cat0020@gmail.com> wrote:
On May 20, 6:10 pm, Johnny Sunset aka Tom Sherman
<sunsetss0...@yahoo.com> wrote:
A "very bad crash" is one that damages the bicycle beyond repair.
So if a decent quality bike hit a pothole in the street, rider
catapoles to a faceplant and need dental surgery but the bike only has
a front flat, that's not a "very bad crash"?
Same pothole claims another victim with cheap W-mart bike, front wheel
tocos, fork bent, toptube bent but rider's fine is considered "very
bad crash"?
TC in Philly.
Well, I don't think I'd call either one good.
-- Ryan Cousineau rcousine@sfu.ca http://www.wiredcola.com/ "I don't want kids who are thinking about going into mathematics to think that they have to take drugs to succeed." -Paul Erdos
Another of your previous comment: "A true cyclist's concern is with
the bicycle, not the rider."
Any cyclist, good personality or bad, is less expendable in case of a
"very bad crash" than any bicycle;
Up to a point... I have seen pictures of George W. Bush on a bike, for example, and I've seen some very nice bikes in my time... ;-/
Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net p.j.clinch@dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/
"cat0020" <cat0020@gmail.com> wrote in message news:1179692764.404178.233060@b40g2000prd.googlegroups.com...
On May 20, 3:39 am, "Edward Dolan" <edo...@iw.net> wrote:
I have witnessed several very bad crashes on these bikes. It is always
the
gal up front who suffers the most. But hey, if you don't mind ambulances
racing to your accident, be my guest.
With all due respect Ed, ALL of the "very bad crashes" on any two
wheeled vehicles I've seen ended up with someone hurt badly, or take a
ride in ambulance; if a rider is unhurt, would it consider to be a
"very bad crash"?
A very bad crash in my book is one that needn't have happened in the first place if one had been riding a more sensible type of bike.
The important details that you leave out in these "several very bad
crashes" that you have seen would be needed in order to determine if
semi-recumbent designs are truly more dangerous. How did they happen?
Why did they happen? conditions of the road, riders or weather?
Semi-recumbents are more dangerous than full recumbents, but all tandems are much more dangerous than any single rider bike. Tandems are always having "very bad crashes" and it is always the gal that is hurt the most.
Heck, people think flying is unsafe but the truth is that a person is
more likely to get killed driving a car on roads than flying in a
passenger plane.
There is something wrong with that thought for sure. Any idiot knows that being several thousand feet in the air is a thousand times more dangerous than having both feet on the ground. Hey, birds got to fly and fish got to swim, but we humans got to trod the earth. What is so difficult about this to understand? Even riding a bike is a thousand times more dangerous than walking. Evolution 101.
Chances favor the prepared mind.
Master your environment and you will survive just fine.
The above is said by every dead fool who ever lived.
Regards,
Ed Dolan the Great - Minnesota aka Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
<vfr1vfr3@gmail.com> wrote in message news:1180095386.505720.93910@p77g2000hsh.googlegroups.com...
On May 24, 9:38 pm, Johnny Sunset aka Tom Sherman
<sunsetss0...@yahoo.com> wrote:
I think it is whoosh!
Well, people are selfish.
--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful
I agree with cat that bicycles have no personality, people value
bicycles at their own accord.
What Tom said does not make sense.
WTH is whoosh? how does whoosh fit into context?
Whether people are selfish or not, has nothing to do with bicycles
having personality.
Do you have anything to contribute to the topic of this thread?
Have you got any experience with semi-bent tandems?
F. Ogawa
Leave this jackass Tom Sherman to me. I know how to handle him perfectly. Believe you me, it takes a jackass to know a jackass. You are no doubt a normal person and should therefore not soil yourself with the likes of im - or me either for that matter. Leave us jackasses to ourselves!
Regards,
Ed Dolan the Great - Minnesota aka Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
"Johnny Sunset aka Tom Sherman" <sunsetss0003@yahoo.com> wrote in message news:1179699003.325563.92960@y18g2000prd.googlegroups.com...
On May 20, 3:26 pm, "cat0020" wrote:
On May 20, 3:39 am, Edward Dolan wrote:
I have witnessed several very bad crashes on these bikes. It is always
the
gal up front who suffers the most. But hey, if you don't mind
ambulances
racing to your accident, be my guest.
Regards,
Ed Dolan the Great - Minnesota
aka
Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
With all due respect Ed,
Just how much respect is due to Mr. Ed the Grate?
Do not prejudice those who are new to My Greatness. Let them discover it for themselves. After all, who needs an old reprobate like you to tell anyone anything!
ALL of the "very bad crashes" on any two
wheeled vehicles I've seen ended up with someone hurt badly, or take a
ride in ambulance; if a rider is unhurt, would it consider to be a
"very bad crash"?...
A "very bad crash" is one that damages the bicycle beyond repair.
Here is an example of Mr. Sherman's wit for all to ponder. I have told him at least a thousand times that he has no wit whatsoever, and that he should confine himself to self parody like I do. But his ego cannot take any depreciation. Mr. McNamara suffers from the same deficiency of personality. Well, not all can be Great like I am.
Regards,
Ed Dolan the Great - Minnesota aka Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
"Johnny Sunset aka Tom Sherman" <sunsetss0003@yahoo.com> wrote in message news:1179883188.166329.289440@h2g2000hsg.googlegroups.com...
On May 22, 7:19 am, cat0020 wrote:
On May 21, 9:45 pm, Johnny Sunset aka Tom Sherman bad crash"?
A true cyclist's concern is with the bicycle, not the rider. ;)
The referenced item is a "bicycle shaped object", not a bicycle!
Please, true cyclist's concern of the ride, all bikes should be
expendable, with enough money they can all be replaced. Besides, Would
you rather have a new bike or new hip, knee or shoulder?
Comparing the bicycles I know to the people I know; in general, the
bicycles have better personalities.
Nonsensical of course, but Mr. Sherman strives to be witty at all costs.
Mr. Sherman is of Danish extraction and the Danes are not known for their lightness. They are known for their dourness (like the Swedes) and for their very weird since of humor. The one thing a Dane like Mr. Sherman should know is to never attempt humor with anyone other than another Dane. We Irish simply can't stand any of the Scandinavians. We do not know how they ever got to be so dour. Lightness is not in their nature.
Fucking Danny Kaye anyone? No one who ever lived had a weirder sense of humor. Well, maybe that other fucking idiotic Dane, the pianist-humorist who liked to make fun of the great composers (I forget his fucking name).
Regards,
Ed Dolan the Great - Minnesota aka Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
"Johnny Sunset aka Tom Sherman" <sunsetss0003@yahoo.com> wrote in message news:1179974863.572259.315380@p47g2000hsd.googlegroups.com...
On May 22, 9:42 pm, cat0020 wrote:
On May 22, 9:19 pm, Johnny Sunset aka Tom Sherman wrote:
Comparing the bicycles I know to the people I know; in general, the
bicycles have better personalities.
In case of a "very bad crash", I rather save the person with worse
personality than the bicycle, then again, when does a bicycle have
personality?
TC in Philly.
Whoosh?
This is Tom Sherman speak. Hey, you don't know what it means? Welcome to the club. I have been trying to figure out this idiot for many years now. But take it from me, do not waste any time on him. It is a fool's errand and it does not pay any dividends. All you will reap for your efforts is self-disgust.
Regards,
Ed Dolan the Great - Minnesota aka Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
"Johnny Sunset aka Tom Sherman" <sunsetss0003@yahoo.com> wrote in message news:1180232425.343032.196900@o5g2000hsb.googlegroups.com...
On May 25, 7:16 am, F. Ogawa wrote:
On May 24, 9:38 pm, Johnny Sunset aka Tom Sherman wrote:
I think it is whoosh!
Well, people are selfish.
I agree with cat that bicycles have no personality, people value
bicycles at their own accord.
What Tom said does not make sense.
Nonsense!
WTH is whoosh? how does whoosh fit into context?
New to Usenet?
Whether people are selfish or not, has nothing to do with bicycles
having personality.
A bicycle with no personality is morally superior to a selfish person.
Do you have anything to contribute to the topic of this thread?
Actually, I did post something relevant to the original post earlier
on. Please pay attention.
Have you got any experience with semi-bent tandems?
I did manage to temporarily convert a straight Green Gear DoubleDay
tandem into a semi-bent tandem while stoking (fortunately, a problem
that could be fixed in less than a minute with a hex key).
Here is an example of Tom Sherman failing to communicate with someone not yet familiar with his eccentric ways. It is why you must always be solid and stolid with those who are unfamiliar with you.
But why does Mr. Sherman make this very elementary mistake? It is because he has become arrogant and callous. He should see his way to exit this newsgroup since he does not want to accommodate those whose only demerit is that they do not yet know the ways of this particular jackass. Unfortunately for Mr. Sherman, I do know the ways of him and it is ever my delight to show him up for what he is - an arrogant and conceited jackass.
I urge Mr. Sherman to become humble and modest like me. He should also strive for chastity too and who knows - maybe someday he can become a Great Saint like Me.
Regards,
Ed Dolan the Great - Minnesota aka Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota
