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Discussion in 'CLASS 2 - WINTER BUILD JOURNALS 2019' started by Psychographic, Oct 1, 2019.

  1. Psychographic

    Psychographic

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    As a new member here, I'm looking forward to participating in my first entry. I know I'll be needing some help and guidance, I hope you guys are willing to help a noobie!

    I'll be starting off with a couple of cheap Roadmaster frames.

    P9240520.jpg
     
  2. MattiThundrrr

    MattiThundrrr

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    Oh yeah, MTB build!
     
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  3. OddJob

    OddJob

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    Welcome aboard the RRB forum train! These build offs are extremely fun and you will expand your horizons in the realm of bike building.

    "A couple of Roadmaster frames..." Hmmm...

    The first thought that comes to my mind is a "Push me - Pull you" type of design with two front ends?!? :bigsmile:

    RaT oN~!
     
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  4. kingfish254

    kingfish254 CHECK OUT MY SALE THREAD FOR COOL STUFF! Pro Member

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    You already have my attention with a killer build name.
    Welcome to RRB.
     
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  5. Psychographic

    Psychographic

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    Well,,,,,,,,,,,,,, not really. P9260522.jpg

    Four cuts, a little welding, and two frames are one.
     
  6. SpikeFC

    SpikeFC

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    Now that looks crazy!
     
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  7. GuitarlCarl

    GuitarlCarl

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    Curious where the BB will be located and wondering whose bike will be longer...

    Carl.
     
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  8. Psychographic

    Psychographic

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    It's going to be longer than this, I plan to rake the headtube and swap out these 20"forks for 24's.

    The red dots are where I plan to mount the BB and the jackshaft idler sprockets. The BB location will probably be a little lower than the dot.

    P9260522_LI.jpg

    This is where I could use some help. Does sprocket size matter when running a jackshaft? I've only seen larger sprockets being used.
     
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  9. GuitarlCarl

    GuitarlCarl

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    A lot depends on your jackshaft gears.
    You can 1 to 1 the gears on the jackshaft and make it easy to figure, or step up for speed or step down to easy the pedaling... (I think that's right)

    Carl.
     
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  10. Psychographic

    Psychographic

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    I would do 1:1 for a start.

    I found some sprockets/locknuts that appear to fit a freewheel hub. As these seem to be much narrower than a single speed freewheel, I was hoping maybe I could fit them on a freewheel trike adapter. The smallest I found are 14t, if size doesn't matter, I would use them.
     
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  11. OddJob

    OddJob

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    Wild and wacky! You are on your way!
     
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  12. Psychographic

    Psychographic

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    Stretched her out a little more with a rake to the headtube and longer forks.

    Before

    P9260522.jpg

    After

    P9300530.jpg
    I'm waiting on some parts before I can go any further.
     
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  13. OddJob

    OddJob

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    Even being the punster I am, I just realized what "Top Fool" was a word play on. Sheesh.
    I'm slipping in my old age! :21:
     
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  14. Psychographic

    Psychographic

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    It happens to the best of us!
     
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  15. MattiThundrrr

    MattiThundrrr

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    I might be older... I'm not getting the wordplay
     
  16. GuitarlCarl

    GuitarlCarl

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    Top Fuel (as in dragsters)
     
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  17. MattiThundrrr

    MattiThundrrr

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    Wow. I feel like the top fool here...
    download.jpeg
     
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  18. SpikeFC

    SpikeFC

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    WOW... that makes me even older I guess... :crazy:
     
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  19. Psychographic

    Psychographic

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    Bunch of old Geezers!!!!!!!!!!!!!:rofl:

    While I wait for the new rear spring, sprockets, and the freewheel adapter to show up, I thought I would work on losing the big horseshoe that is attached to the fork.

    I used a piece from a rusty bent up sissybar for a brace/brake mount. After it was welded up, I cut the old brace brake/mount off.

    Before

    P9260525.JPG

    After
    (I still need to make a tab for the brake to mount to.)

    PA040534.jpg
     
    Last edited: Oct 4, 2019
  20. Psychographic

    Psychographic

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    One step forward, one step back.

    Forward,
    The rear spring arrived today. I welded the spring mount and then made the brace for the bottom tube of the frame. Then I tacked the BB in place, I think with a shorter crankset, it will work.

    PA050536.jpg

    Backward,
    The new brace for the forks is not working out. With the wheel mounted the forks bind and there is no suspension. I assumed that when my weld cooled things might have moved, so I made a cut through one end and it immediately had a gap. To keep things centered, I cut through the other side, centered the piece and welded it back up.

    It still binds!:mad:

    Back to the drawing board.
     

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