Reverse Articulating Trike

[yoothgeye]

Decided to get something out of my head yesterday and onto 3 wheels.

https://youtu.be/usgOcMeOODc




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[yoothgeye]

Sorry for just dropping a link and running away, my phone's camera stopped working a while back and I didn't have anything else to add.

I wanted to make a reverse trike like this about 8 years ago and always just thought about making the 2 front wheels fixed with the ability to just lean and ride on 2 wheels instead of 3, but then it would always be twitchy on 3 wheels at speed like reverse upright trikes can be.

Then I considered using 2 suspension forks, but that would just be super bulky and still not great.

Finally the other night I came up with this simple idea and it worked great.

If you watched the video you know I have an alignment problem, but for something put together in just a few hours, it's just right.

To do this RIGHT right though, I would use a drill press to get the holes through the forks straight (that's where my issue is, I just eyeballed and hand drilled). Then I would put sleeves in the holes and weld them in. The pivot brackets could be just as primitive as the ones I made, but better if they were actually measured, I did not. haha Finally, assembly with nice nylon washers in conjunction with regular washers and nylock nuts to set your tension would be great.

I think this simple design has more uses that just a freak bike. Also, you could go as narrow as you want or much wider with good results.

I'd like to find a way to do similar on a regular trike, but the chainline would be an issue.

 

[deorman]

If you ever come up this way again let me know so I can unload a pile of old frames wheels various parts perhaps some dirt cheap or free whole bikes on you.

 

[Wildcat]

I like the idea.
If you had a straight leg fork, maybe you could omit the pipe and welding by just removing one leg and using the single legged fork as the center spindle.

I was looking at sidecar plans recently and noticed they liked to have a little toe out for stability at higher speeds. I'd like to try your idea using 26" front tires.

 

[yoothgeye]

If you ever come up this way again let me know so I can unload a pile of old frames wheels various parts perhaps some dirt cheap or free whole bikes on you.

Man, yeah! You on this side of DC?


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[yoothgeye]

I like the idea.
If you had a straight leg fork, maybe you could omit the pipe and welding by just removing one leg and using the single legged fork as the center
I was looking at sidecar plans recently and noticed they liked to have a little toe out for stability at higher speeds. I'd like to try your idea using 26" front tires.

I save all my straight leg forks as they are hard to come by, plus, the down pipe I used is thicker wall than a fork because I figured this setup could put a lot of stress on it.

I’d like to see this with 26” tires, that would be cool. Wider would be cool too, but I didn’t want to go crazy and make it too wide, that’s a think I don’t like with trikes.


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[deorman]

Man, yeah! You on this side of DC?


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Falls Church VA