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Recumbent Bicycle made from a Tree Trunk Pic



 
 
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  #11  
Old May 17th 09, 04:20 PM posted to rec.bicycles.misc,ba.bicycles
SMS
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Posts: 9,477
Default Recumbent Bicycle made from a Tree Trunk Pic

Mark Franzels wrote:
On May 17, 10:37 am, SMS wrote:
I saw this today at the USGS Open House in Menlo Park:

"http://i41.tinypic.com/ouz91t.jpg"

Later I saw the owner riding it.


If collision occurs and the chain goes off, the sharp
slicer disc at the front can slice the person bottom
wide open. Dangerous.


There are a lot more dangers in a recumbent than that unlikely scenario.
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  #12  
Old May 17th 09, 07:40 PM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Tom_Sherman
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Posts: 152
Default Recumbent Bicycle made from a Tree Trunk Pic

SMS aka Steven M. Scharf wrote:
Mark Franzels wrote:
On May 17, 10:37 am, SMS wrote:
I saw this today at the USGS Open House in Menlo Park:

"http://i41.tinypic.com/ouz91t.jpg"

Later I saw the owner riding it.


If collision occurs and the chain goes off, the sharp
slicer disc at the front can slice the person bottom
wide open. Dangerous.


There are a lot more dangers in a recumbent than that unlikely scenario.


No dangers that are not also common to uprights.

--
Tom Sherman - 42.435731,-83.985007
LOCAL CACTUS EATS CYCLIST - datakoll
  #13  
Old May 17th 09, 11:00 PM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
SMS
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Posts: 9,477
Default Recumbent Bicycle made from a Tree Trunk Pic

Tom_Sherman wrote:
SMS aka Steven M. Scharf wrote:
Mark Franzels wrote:
On May 17, 10:37 am, SMS wrote:
I saw this today at the USGS Open House in Menlo Park:

"http://i41.tinypic.com/ouz91t.jpg"

Later I saw the owner riding it.

If collision occurs and the chain goes off, the sharp
slicer disc at the front can slice the person bottom
wide open. Dangerous.


There are a lot more dangers in a recumbent than that unlikely scenario.


No dangers that are not also common to uprights.


No, that's not true. Recumbents have some inherent dangers that don't
exist in diamond frame (or other upright) bicycles. There are visibility
issues, both seeing and being seen. There's the danger of leg suck.
  #14  
Old May 17th 09, 11:18 PM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
[email protected]
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Posts: 1
Default Recumbent Bicycle made from a Tree Trunk Pic

On 18 ΝΑΚ, 01:00, SMS wrote:
Tom_Sherman wrote:
SMS aka Steven M. Scharf wrote:
Mark Franzels wrote:
On May 17, 10:37 am, SMS wrote:
I saw this today at the USGS Open House in Menlo Park:


"http://i41.tinypic.com/ouz91t.jpg"


Later I saw the owner riding it.


If collision occurs and the chain goes off, the sharp
slicer disc at the front can slice the person bottom
wide open. Dangerous.


There are a lot more dangers in a recumbent than that unlikely scenario.


No dangers that are not also common to uprights.


No, that's not true. Recumbents have some inherent dangers that don't
exist in diamond frame (or other upright) bicycles. There are visibility
issues, both seeing and being seen. There's the danger of leg suck.


I googled some and still don't get what leg suck is. What is it?

Unrelated (I forgot or never knew):
are recumbents faster downhill than uprights?
  #15  
Old May 18th 09, 12:04 AM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Tom_Sherman
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Posts: 152
Default Recumbent Bicycle made from a Tree Trunk Pic

SMS aka Steven M. Scharf wrote:
Tom_Sherman wrote:
SMS aka Steven M. Scharf wrote:
Mark Franzels wrote:
On May 17, 10:37 am, SMS wrote:
I saw this today at the USGS Open House in Menlo Park:

"http://i41.tinypic.com/ouz91t.jpg"

Later I saw the owner riding it.

If collision occurs and the chain goes off, the sharp
slicer disc at the front can slice the person bottom
wide open. Dangerous.

There are a lot more dangers in a recumbent than that unlikely scenario.


No dangers that are not also common to uprights.


No, that's not true. Recumbents have some inherent dangers that don't
exist in diamond frame (or other upright) bicycles. There are visibility
issues, both seeing and being seen. There's the danger of leg suck.


The visibility issue is minor to non-existent; I consistently get more
room from motor vehicles when riding a recumbent. Except for a few
lowracers, visibility and being seen is a non-issue (unless you believe
driving a normal sedan is also unsafe).

Leg-suck is not an issue with proper foot retention.

We could also make a list of dangers only inherent to uprights, most of
which involve going over the bars and landing on one's head from various
causes.

--
Tom Sherman - 42.435731,-83.985007
LOCAL CACTUS EATS CYCLIST - datakoll
  #16  
Old May 18th 09, 01:51 AM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Edward Dolan
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Posts: 14,212
Default Recumbent Bicycle made from a Tree Trunk Pic


"Tom_Sherman" wrote in message
...
[...]

The visibility issue is minor to non-existent; I consistently get more
room from motor vehicles when riding a recumbent. Except for a few
lowracers, visibility and being seen is a non-issue (unless you believe
driving a normal sedan is also unsafe).


Jeff Grippe would disagree with you about the visibility issue in dense
urban traffic situations.
[...]

Regards,

Ed Dolan the Great - Minnesota
aka
Saint Edward the Great - Order of the Perpetual Sorrows - Minnesota


  #17  
Old May 18th 09, 02:04 AM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Tom_Sherman
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Posts: 152
Default Recumbent Bicycle made from a Tree Trunk Pic

Edward Dolan wrote:
"Tom_Sherman" wrote in message
...
[...]

The visibility issue is minor to non-existent; I consistently get more
room from motor vehicles when riding a recumbent. Except for a few
lowracers, visibility and being seen is a non-issue (unless you believe
driving a normal sedan is also unsafe).


Jeff Grippe would disagree with you about the visibility issue in dense
urban traffic situations.
[...]

Cagers miss seeing upright cyclists all the time.

--
Tom Sherman - 42.435731,-83.985007
LOCAL CACTUS EATS CYCLIST - datakoll
  #18  
Old May 18th 09, 02:14 AM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Tom Kunich
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Posts: 6,456
Default Recumbent Bicycle made from a Tree Trunk Pic

"Tom_Sherman" wrote in message
...
Edward Dolan wrote:
"Tom_Sherman" wrote in message
...
[...]

The visibility issue is minor to non-existent; I consistently get more
room from motor vehicles when riding a recumbent. Except for a few
lowracers, visibility and being seen is a non-issue (unless you believe
driving a normal sedan is also unsafe).


Jeff Grippe would disagree with you about the visibility issue in dense
urban traffic situations.
[...]

Cagers miss seeing upright cyclists all the time.


Absolutely. However, because serious accidents are so rare, it is difficult
to quantify the difference in safety between an upright which DOES have very
good visibility and a recumbent which has reduced visibility AND reduced
ability of the recumbent rider to see forward.


  #19  
Old May 18th 09, 02:17 AM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Tom_Sherman
external usenet poster
 
Posts: 152
Default Recumbent Bicycle made from a Tree Trunk Pic

Tom Kunich wrote:
"Tom_Sherman" wrote in message
...
Edward Dolan wrote:
"Tom_Sherman" wrote in message
...
[...]

The visibility issue is minor to non-existent; I consistently get
more room from motor vehicles when riding a recumbent. Except for a
few lowracers, visibility and being seen is a non-issue (unless you
believe driving a normal sedan is also unsafe).

Jeff Grippe would disagree with you about the visibility issue in
dense urban traffic situations.
[...]

Cagers miss seeing upright cyclists all the time.


Absolutely. However, because serious accidents are so rare, it is
difficult to quantify the difference in safety between an upright which
DOES have very good visibility and a recumbent which has reduced
visibility AND reduced ability of the recumbent rider to see forward.


This is hard to quantify, but the recumbent has a high "what the heck is
that factor" which attracts more attention.

--
Tom Sherman - 42.435731,-83.985007
LOCAL CACTUS EATS CYCLIST - datakoll
  #20  
Old May 18th 09, 02:37 AM posted to rec.bicycles.misc,ba.bicycles,alt.rec.bicycles.recumbent
Tom Kunich
external usenet poster
 
Posts: 6,456
Default Recumbent Bicycle made from a Tree Trunk Pic

"Tom_Sherman" wrote in message
...
Tom Kunich wrote:
"Tom_Sherman" wrote in message
...
Edward Dolan wrote:
"Tom_Sherman" wrote in message
...
[...]

The visibility issue is minor to non-existent; I consistently get more
room from motor vehicles when riding a recumbent. Except for a few
lowracers, visibility and being seen is a non-issue (unless you
believe driving a normal sedan is also unsafe).

Jeff Grippe would disagree with you about the visibility issue in dense
urban traffic situations.
[...]

Cagers miss seeing upright cyclists all the time.


Absolutely. However, because serious accidents are so rare, it is
difficult to quantify the difference in safety between an upright which
DOES have very good visibility and a recumbent which has reduced
visibility AND reduced ability of the recumbent rider to see forward.


This is hard to quantify, but the recumbent has a high "what the heck is
that factor" which attracts more attention.


Agreed but that is AFTER it has been spotted.

 




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