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ShelGame
recumbent enthusiast

USA
254 Posts

Posted - 11/06/2017 :  09:21:14  Show Profile  Reply with Quote
quote:
Originally posted by carolina

Yea shelgame, build a low race bike like sb said. This build is incredible, look what you know. Class A+. Maybe two 20 wheels racer.


velosRus.com



I have something in mind, but I'm just not into the low racer thing. Yet.
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Speedbiker
human power expert

USA
3744 Posts

Posted - 11/06/2017 :  12:26:52  Show Profile  Reply with Quote
Then a low/highracer!
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ShelGame
recumbent enthusiast

USA
254 Posts

Posted - 11/06/2017 :  13:52:08  Show Profile  Reply with Quote
quote:
Originally posted by Speedbiker

Then a low/highracer!



Getting closer!

I worked on a sketch last night. I'll post it in a new thread later.

But, briefly, I'm looking at a 700/650c 51" WB, RWD stick bike capable of a 10deg seat angle; and with a fixed short boom BB; 23" seat height, 30" BB height.

What I'm not sure of is, the relative strength/stiffness of the main boom that long as a monotube. It might need to be a truss frame in steel.
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Jerry
recumbent guru

USA
967 Posts

Posted - 11/06/2017 :  17:47:13  Show Profile  Reply with Quote
I have a high racer, mid racer, and low racer. The mid racer is a Catrike Musahi and handles like a very expensive sports racer. The high racer is a hand full sometimes in traffic and high cross winds. The low racer you need to pay attention at all times. If I were to build my own, it would be something like the Musashi. It is very fast and nimble. The seat recline is not 10 degrees, but that can be worked out. Good luck with whatever you choose.
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Speedbiker
human power expert

USA
3744 Posts

Posted - 11/06/2017 :  18:55:25  Show Profile  Reply with Quote
Sounds good. I assume the frame will have a slight Z?
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ShelGame
recumbent enthusiast

USA
254 Posts

Posted - 11/06/2017 :  21:43:17  Show Profile  Reply with Quote
No Z. This is just a first sketch. Literally did this last night in a hour before bed. Really just a geometry study at this point. Feel free to poke holes in the idea.

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Speedbiker
human power expert

USA
3744 Posts

Posted - 11/07/2017 :  00:30:52  Show Profile  Reply with Quote
How about moving the front wheel back and Zing the frame a little?
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alevand
human power expert

USA
2910 Posts

Posted - 11/07/2017 :  05:29:49  Show Profile  Visit alevand's Homepage  Reply with Quote
Looks like a Bacchetta.I made a bike once with the BB that high, seat was much lower, 15 inches, I would fall over at stops, trying to get my leg up that high to start, with an up hill grade. With the seat that high, you can walk it first to get rolling, then bring your legs up, so your tiller should have a pivot, so you can sit up. The forward bars makes that easier, to pull up on. Of course if its just for racing, its fine.


C:
Tony Levand

Edited by - alevand on 11/07/2017 05:41:11
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ShelGame
recumbent enthusiast

USA
254 Posts

Posted - 11/07/2017 :  09:55:24  Show Profile  Reply with Quote
quote:
Originally posted by Speedbiker

How about moving the front wheel back and Zing the frame a little?



Like this?



Thought about it. Right now, I have a fascination with 'stick' bikes. So, I was seeing where it could go; how low you can get the seat, and what it would look like.

I actually have a Rans F5 steel frame coming today. I'll probably play with that first for a while and see how I like it. Then decide what to build next...

Edited by - ShelGame on 11/07/2017 09:56:15
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