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  1. #1

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    Dec 2013
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    Default '66 Honda Trail 90 Chopper - Live slow/ die whenever

    Long time lurker here. I've gotten loads of inspiration from other folks' builds, so I figured it was about time to start posting my own stuff.

    First off, a little about me - I like small bikes. Mopeds, little hondas, hell even a scooter once in a while. I've got nothing against larger machines, but for now I'm content going slow and looking ridiculous while doing so.


    A few years ago I really wanted to build myself a nice little trail 90. I scoured craigslist until I found a parts lot of about 2-1/2 bikes.


    From the 2 rollers, I pieced together a sweet little 140cc screamer in about 3 months.



    For more on that bike you can check it out here


    That bike was fun as hell to build, and even more fun to ride, but that's not what this thread is about... This thread is about the 1/2 bike I got in the craigslist sale. Ok, it was TWO halves of a '66 trail 90 frame. Litterally, someone cut the damn thing in half. For what reason, I don't know. I stared at those pieces of bike until one day, the inevitable mock-up happened.

    Last edited by 4doora; 02-08-2015 at 6:14 PM.

  2. #2

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    Dec 2013
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    Even though the flipped head tube provided some additional rake, it wasn't enough, so I cut some more.



    Got a few pieces of pipe and stretched the underbone frame "6 over stock








    I managed to track down a motor from a trail 70 to use. I could very well have just bought a Chinese pit-bike motor, but rebuilding OEM shit is more satisfying.
    Having the frame and motor mocked up on a table, I decided this bitch needs a skirt. A piece of sheet metal from homedepot and a few hours later I had this:



    This was my first attempt at any sheet metal beating. I was quite happy with the results.

  3. #3

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    Dec 2013
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    The skirt is held on with a few small studs welded to the inside of the fender. Simple, but it works.


    I made some struts from scrap pipe hanging around the garage.



    Since I had to deal with the chain drive on the left side of the bike, I couldn't just jump into the second wheel skirt right away. I found this chain guard from some old bicycle on ebay, and took a chance on it.



    As luck would have it, perfect fit.



    Hours of hammering, cutting, bending, and cursing later I had this:



    More mocking up, and an extremely clean gas tank/ seat pedistal off ebay for $10\


  4. #4

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    I knew I needed some weird bars to go with the leading-link front forks. So I bought some 7/8" pipe, threw a jig together, and grabbed the torch.





    Got em chopped and welded, now they just bolt on to the top of the forks. If you look closely, you can see the shifter poking up off the frame, and linkages hangin down.




    Last summer I did manage to spray a few pieces to get a taste of what the paint will look like... rattle cans under automotive clear.




    I'm still going on this bike, but that's all I have for pictures at the moment. Even under all this snow here in the Northeast, I've managed to get a few more things done - even managed to get it running. This is my first really custom build. It's been such a great release to just get the creative juices flowing. I'll get some more pictures taken and posted if anyone's interested.

    -RJ
    Last edited by 4doora; 02-08-2015 at 6:08 PM.

  5. #5
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    haha this is so whacky I'm into it

    I also want to know how you did a 140cc conversion. I would like to soup this thing up

  6. #6
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    Why do I like this so much? I think it's awesome that you are chopping what you have.

  7. #7
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    Looks good to me really like the skirts keep up the progress.

  8. #8
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    Thats gonna be sweet!

  9. #9
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    I love what you're doing to this Trail. Looks great so far!

  10. #10
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    Haha! I LOVE this thread. Keep it up!

  11. #11

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    Quote Originally Posted by CraiGORE View Post
    haha this is so whacky I'm into it

    I also want to know how you did a 140cc conversion. I would like to soup this thing up
    Damn, that's a clean little honda.
    The engine on the trail bike is a crate LIFAN 140cc. Bolted up with some minor clearance grinding on the frame. The 140 has to run an oil cooler. Smaller (110s, 125) engines can get by without them. Wiring was all redone from scratch. Now 12v with cdi. You can buy the motors with everything you need to run for around $500


    Thanks for the feedback folks. I'll try to make my way to the garage for some current pics of the chopper.

  12. #12

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    Here's a shot of the custom intake I hacked together to mount my downdraft carb. Eventually gonna rock a velocity stack.



    I rebuilt the top end of the motor, along with an 88cc kit. It should have some decent pep.

    I'm running an internal throttle utilizing honda z50 parts.



    My most recent progress on the bike includes the fabrication of this ridiculous exhaust. Might do a fishtail tip.







    vid
    http://vid182.photobucket.com/albums...0/VID00001.mp4
    Last edited by 4doora; 02-09-2015 at 5:22 PM.

  13. #13
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    my old pushrod engine is able to wheelie I can't wait to see a wheelie vid from you.

    totally whacky and awesome, bravo

  14. #14
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    this is looking really cool.
    love it.

  15. #15
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    My first bike after my tube frame mini bike was a step through Honda 50. It was a hand me down from my dad. He used to haul it in the back of his airplane. The down tube was cut similar to your pic only further up. It had a special sleeve with clamps and roll pins to hold it together. The electrics were modified with a cannon plug and the throttle slide would be removed from the carburetor and a special threaded container screwed over the slide and that set up allowed the front end to be free from the rest of the bike. It was a commercial aftermarket mod offered by the dealer. Seeing your cut down tube brought back the memory of this. Tough little bikes, I tried to tear it up but it withstood my abuse. I like what you are doing with your bikes, different and creative. Not everybody needs a '47 Knucklehead.
    Last edited by KevinN; 02-10-2015 at 6:55 AM.

  16. #16
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    This site is just awesome. You guys are just artists.

  17. #17
    Wolfie
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    4 Door....fuckin sweet brother !!!!....this is the kinda shit I was doin in the 70s....I love that you younger guys are keepin it up !!!!
    Id add a rib to that backbone tube though....I had an M50 Suzuki I commandeered outta Cambodia...same type of "no lower" frame, but mine was stamped steel (1965 ???)...It ended up raking itself when I went over a big hump, and the frame broke just behind the neck....luckily, not all the way through....

    Or add a top tube...new gas tank...make a triangle in the frame though please....
    Last edited by Wolfie; 02-10-2015 at 7:07 PM.

  18. #18
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    LOVE it! I restored a 1980 Trail 110 for a friend a few years ago. It was a fun bike, but he beat the shit out of it in the mountains out here and "blew the tranny" (lmfao). We are in the process of putting a Lifan 125cc in it now. I want to cut it up a bit, but not my bike.

  19. #19
    Jetblack
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    I've seen a couple of these chopped... love how it sticks in period correct craws, and I don't know why. I like what you've been doing to this one a lot... I really hope those bars from hell aren't quite finished yet though.

  20. #20
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    Quote Originally Posted by KevinN View Post
    Not everybody needs a '47 Knucklehead.
    Ok I really dig this but really? Everyone NEEDS a '47 Knuck.

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