Pederson bikes

maxo said:

I for some reason thought about Pederson bicycles today--it had been a few
months since my last Pederson fantasy, and it filled me with absolute
pleasure and planted a stupid grin on my face for hours. Perhaps it's time
to own one...

I bet few of you have enjoyed the sight of such a majestic steed, enjoy:

Believe it or not, there was one at my college, locked up in the
basement bike park (imagine an underground parking garage in an
apartment building. Now fill it with bikes. ALL OF IT....and that
was only part of my college's secure bike storage....*sigh*)

It was blue, and it always seemed to me to be a ridiculously tall
bike, out of touch with the various MTBs, Raleigh 20s, Three-speeds,
etc.

-Luigi
super flumina Potomaci, illic sedimus, suspendimus organa nostra, et
flevimus dum recordaremur te, Cantabridgia....

Quoted message said:

http://www.pedersen-bike.dk/

http://www.pedersenbicycle.dk/engelsk.htm

On Sat, 14 Aug 2004 05:37:40 GMT, maxo <[email hidden]> wrote in
message <[email hidden]>:

Quoted message said:

I for some reason thought about Pederson bicycles today

There were a Several at Cyclefest recently, including a very elegant
Pedersen tandem :-)

Guy
--
May contain traces of irony. Contents liable to settle after posting.
http://www.chapmancentral.co.uk

88% of helmet statistics are made up, 65% of them at Washington University

maxo said:

http://www.pedersenbicycle.dk/engelsk.htm

I don't understand. It looks like a regular bike, with lots of extra
crotch-breaking tubes. I like the handlebar, though.
--
Rick Onanian

Rick Onanian said:

maxo said:

http://www.pedersenbicycle.dk/engelsk.htm

I don't understand. It looks like a regular bike, with lots of extra
crotch-breaking tubes. I like the handlebar, though. --
Rick Onanian

It's very different actually, it uses thin wall small tubing in the same
way that you might build architecture--very specifically controlling the
lateral stiffness whilst allowing for up and down flex for suspension and
comfort.

As far as frame design goes, the only thing similar that's popular would
perhaps be the "mixte" frame, which also has small diameter tubes running
from the top of the head tube to the rear dropouts.

The saddle is a leather hammock and the seating position is further back,
higher, and more upright than other bikes--when you see someone on a
perderson, it looks like they're "moonwalking" 😄

Rick Onanian <[email hidden]> wrote in
news:[email hidden]:

Quoted message said:

maxo said:

http://www.pedersenbicycle.dk/engelsk.htm

I don't understand. It looks like a regular bike, with lots of extra
crotch-breaking tubes. I like the handlebar, though.
--
Rick Onanian

I don't know... it has a certain chopper-ish appeal in this photo:

http://www.pedersen-bike.dk/images/ped01a.jpg

And check out the one with the wooden fenders!

The center of gravity looks dicey for climbing a steep hill, but I guess
there aren't many steep hills where these are made. 🙂 If it wasn't for
that, and the hills here in town, I think it would be fun to have one for
running down to the local market. People ride all sorts of weird bikes
around here, and this would not be even close to the weirdest bike in town.

--
Mike Barrs

Rick Onanian said:

Quoted message said:

http://www.pedersenbicycle.dk/engelsk.htm

Quoted message said:

I don't understand. It looks like a regular bike, with lots of extra
crotch-breaking tubes. I like the handlebar, though.

The concept results from a linear stress fetish, no bending or
torsion, only tension and compression. That is why Pedersen used no
large diameter tubes, ones that could carry torsion and bending. I
admire the concept for a theoretical exercise but it has no practical
benefits for the user. It's ungainly shape makes it useless in most
competition, whether against others or against a steep grade.

I think it should strike any perceptive mechanical engineer as an
exercise in tension and compression, so much so that elements that
have only tension are not even tubes but wires and the saddle supports
its load only in tension. Unfortunately there was no way of making
pedal cranks to fit this concept... alas bending and torsion, but only
in the cranks and handlebar.

Jobst Brandt
[email hidden]

jobst.brandt said:

I admire the concept
for a theoretical exercise but it has no practical benefits for the user.

I've only test ridden one, but it from a subjective viewpoint, it was a
very stable bike with wonderful damping which I'm assuming is due to the
small thin-wall tubes. It just felt noble and secure. 😄

Quoted message said:

It's ungainly shape makes it
useless in most competition, whether
against others or against a steep grade.

It's a Danish design mainly used as a round town utility bike--thus no
need to incorporate features for an alpine environment, though if you're
the type to slide back in the saddle for a long climb, it might be the
ticket. 😄 This isn't something you "compete" on, it's a bike that you
ride to market on and explore cities with. 🙂