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alevand
human power expert

USA
2877 Posts

Posted - 12/27/2010 :  10:06:30  Show Profile  Visit alevand's Homepage  Reply with Quote
virtual pivot steering:

http://www.youtube.com/watch?v=2VHwxFHPWhM

C:
Tony Levand

Jeff Wills
human power supergeek

USA
1270 Posts

Posted - 01/04/2011 :  17:55:42  Show Profile  Reply with Quote
quote:
Originally posted by alevand

virtual pivot steering:

http://www.youtube.com/watch?v=2VHwxFHPWhM

C:
Tony Levand



I think Neal Fegan's "Blue" features a virtual pivot on a bicycle design:
http://montanatransitauthority.com/post/112311662



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alevand
human power expert

USA
2877 Posts

Posted - 03/10/2015 :  18:34:46  Show Profile  Visit alevand's Homepage  Reply with Quote
Duplex steering:

http://sinlesscycles.com/index.php/present-sins/detail/1936-oec-duplex

https://www.youtube.com/watch?v=iVNozc6qh3M





C:
Tony Levand
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Speedbiker
human power expert

USA
3704 Posts

Posted - 03/11/2015 :  17:26:25  Show Profile  Reply with Quote
Warren, is there still a motion file on the build page for the virtual pivot steering my brother designed for the Coslinger 2.0 ten years ago?
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warren
human power expert

USA
6050 Posts

Posted - 03/11/2015 :  18:52:40  Show Profile  Visit warren's Homepage  Reply with Quote
From http://www.recumbents.com/wisil/cos2/new_machine.htm

All I have is this image:

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Speedbiker
human power expert

USA
3704 Posts

Posted - 04/24/2015 :  17:15:24  Show Profile  Reply with Quote
That's it. Basically a three link with the light blue upper link and two red lower links. A shock mounted above the fork. It used to be a motion file that showed how it worked.
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