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Recumbent What IS that thing?! Recumbents may be odd looking, but they have many advantages over a "wedgie" bicycle. Discuss the in's and out's recumbent lifestyle in the recumbent forum.

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Old 07-12-06, 03:09 PM   #1
broomhandle
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i would like to build my own recumbent, help..

i saw somebody build a recumbent out of a bmx frame, and i would like to build a recumbent. what is the best frame to use? and where would i get a seat? or just a back rest to mount on a normal seat?

any help from somebody who has done this before?
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Old 07-14-06, 07:29 PM   #2
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recycled recumbent

Hi,
I suppose that making a 'bent out of a BMX bike is one way to go, although I think that there are other better options that others have tried. Easyracer used to publish a set of plans to build a Toureasy out of two old ten speeds - I built one using the plans in the late 90's and still use it on more or less a daily basis as my commuter - although I did have a hiatus for a couple years while I was able to ride a velomobile. Anyway, there are some online plans available to build these - not quite as complete as the printed plans, but probably usable. See http://www.recycledrecumbent.com/toc.htm. Also my own website has some other links to similar websites (see www.velomobiles.net, go to the Obtaining a VM page, and then scroll down if the intra-page links don't work for you. There is a lot there, so you may have to scroll for awhile).

Another approach that would work better than the BMX idea, but is simpler and faster than the Toureasy is to get ahold of an old Mixte frame and use the low part of the frame as a seat support, and the seat tube as the seat back brace, or at least a mounting point for sprint braces (the two struts that support the back of many recumbent seats).

Either way, a simple way to make a seat is to take two pieces of plywood - one for the back, and one for the base, and connect them with a piece of piano hinge. That way you can alter the angle the base makes with the back.

Hope that was helpful.

regards,
-Ethan
www.velomobiles.net
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Old 07-17-06, 10:09 AM   #3
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I started with an old road bike.
http://www.biketcba.org/TRICORR/proj.../junkbike.html
I would recommend using something higher-end than a dept-store tank as a starting point; you'll end up with a much better bike for all your effort.

You can make your own seat, but buying a fiberglass hardshell at $100 isn't a bad way to go. The WISIL site has instructions on building a seat or a mount.
http://www.recumbents.com/wisil.htm
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Old 07-17-06, 01:39 PM   #4
broomhandle
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i was thinking of using a ladies frame, or mixte as well. i just want to do this as free as possible.
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Old 07-19-06, 06:37 PM   #5
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Check out the guy who made my frame. http://www.radiks.net/~ladue/

You add all your own stuff to it. It's a very reasonably priced way to get into a bent. I liked that design very much as the CG is extremely low which I love (after getting used to). And I didn't want to be lying back like in bed, but sitting almost upright. And the pedals are lower than the seat which is good for circulation.
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