Faux Pedersen Ortho

Nov 22, 2011
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I started on this unique contraption on January 4th. Since the rules have been revised I guess I will document the transformation of it from a “frame” to a rideable Bike. The biggest obstacle is creating a long tube fork without using a welder. I have sourced some parts, a 1” threaded fork, 5/8” threaded rod, nuts, washers, set screws, 1” seat post, 1” thread-less headset and a few other hardware parts. More to come.

The unconventional fork goes together like a puzzle...one solution only.



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Nov 22, 2011
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I think that would look awesome with some triple trees! Get the extra long chopper ones and they'll probably fit :)
The head tube is 22” long. I’ve thought about a chopper type fork but I’ll probably keep it cheap and simple unless a bargain comes my way. I’m working on mocking up the rat hybrid fork. Think I’ve figured out a mechanical way to make it work safely.
 
Nov 22, 2011
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Splicing in a piece of pipe at your local weld shop should'nt be very pricey. It'd also be stronger than anything you could bolt together.
Carl.
Yah that’s the easy way but I think my boat anchor job will have backup failsafe backups. Then it’s my work. If it doesn’t prove to be “stable” I’ll go the fabrication route.
You may be right but I’m prone to avoid the norm. Your idea would be lighter also...
 
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Nov 22, 2011
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Looking forward to seeing what you plan to do with this unique frame. I had fun with the stock one that I had. It's insane how long that steertube is.
Not sure that it will be too radical, although @DeFresh’s frame modification looks interesting. I still have a complete Ortho bike with a replacement frame which I’ve tweaked into a fun comfortable rider. My experience with Virtue Cycles was a positive one.
The frame I’m using in the Winter Build is the original that arrived all scuffed and scratched up. It needs refinishing or could be left outside to gain some patina and rust.
The rider...
 
Last edited:
Nov 22, 2011
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Original thought process for long stem fork has seen a few changes and revelations as I put the ideas into action. The whole thing has to go in through top (actually through bottom on second thought). The last nut at bottom crown of fork with a couple of extra set screws at fender/brake mount holes. It will work I think...again one way only to assemble and everything in order.




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Nov 22, 2011
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I got out to the garage and driveway shop today...a warmer day. I finished drilling and taping the set screw holes. I fit the lower bearing race, shortened up the threaded rod to final length and assembled the fork components. I had to file off the corners of the nuts to get through the bearing cups, not much just the sharp edges. The set screws also needed to filed down a bit. Everything fit like a glove. Also dry fit (China style) the threadless headset to test assembly. I had one stem to further move the mock-up along. The stem and bars are for evaluation at this point.







I made a parts list...some I have, some I’ll have to round up. Now that I have a fork that will work I’ll start dealing with the rest of the concept.
I have a couple of potential wheelsets, SS and 3spd, along with a couple of sets of tires. It will be good to see the stance.