GT1 frame with lots of extra steel

Discussion in 'Motorized Bicycle Welding, Fabrication and Paintin' started by soup325, Feb 8, 2013.

  1. soup325

    soup325 New Member

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    [​IMG]


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    My batwings or bottom bracket support is made using a jigsaw with a fine steel blade, angle grinder, bench grinder and hand files.
    I traced the outline and went slowly going forward, backing off a little, all the way around.

    I had the help of cutting lube to help the blade around the curve.
     
    #1 soup325, Feb 8, 2013
    Last edited: Feb 8, 2013
  2. soup325

    soup325 New Member

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  3. soup325

    soup325 New Member

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  4. soup325

    soup325 New Member

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    [​IMG]


    just had to do a quick fit, to make sure everything slots into place.
     
  5. 16v4nrbrgr

    16v4nrbrgr New Member

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    I like your reinforcement gusseting a lot, should ride smooth and strong for decades.
     
  6. Lowandslow

    Lowandslow New Member

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    Holy cow! That's a lot of added strength. Did you tig all that?
     
  7. soup325

    soup325 New Member

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    yeah, the frame and the exhaust is all tig'd. I only shaped the steel gussets and cut out the exhaust pipe. I had a mate to do all the welding.

    the frame gussets is 4mm steel, where the frame is 1.8mm.

    the exhaust pipe is the handlebars from a donor bike. same with the carrier eyes, that have been welded on the back stays. as the GT1 frame does not have these as standard.

    one other thing with MBs. Is the extra cables dont have any cable stays to go through.
    so I had some more welded on.

    the gussets are to keep the resonance frequency under control more than anything else. I did do it for the strength but it is more of a bonus than the primary reason for doing this.

    the sleeves on the exhaust pipe is the donor bikes seat post. these fit nicely over the handle bars, to make construction of the exhaust easier.

    some exhaust tabs have been added to hang the exhaust on. this will make it easier to maintain.

    it has taken about 12 months to get to this stage. I have other daddy projects such as rocking horses and balance bikes to build for my children. so the bike is long build.
     
    #7 soup325, Feb 8, 2013
    Last edited: Feb 8, 2013
  8. soup325

    soup325 New Member

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    this is my fuel tank that will sit on a carrier. i have posted this a little while ago.

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  9. Barnfresh

    Barnfresh Member

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  10. Ind-Chuckz

    Ind-Chuckz New Member

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    Nice build love the tank!!
     
  11. curtisfox

    curtisfox Well-Known Member

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    This is awesome. The way you renforced the frame should last forever...........Curt
     
  12. Jpughx

    Jpughx New Member

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    That tank is great! Do you have pictures and an explanation how you installed the fill neck and valve?
     
  13. 16v4nrbrgr

    16v4nrbrgr New Member

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    I love your keg tank idea! Keep it up :D
     
  14. killercanuck

    killercanuck New Member

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    Great work, it must have took forever to fit them all to your liking... Beaut's!
     
  15. soup325

    soup325 New Member

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    [​IMG]
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    the spray booth

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    spray gun holder/washing line


    I got the bike sand blasted and etch primed

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  16. soup325

    soup325 New Member

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  17. soup325

    soup325 New Member

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    [​IMG]

    now for the painting
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    the SPB jack shaft
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  18. soup325

    soup325 New Member

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    engine mounts
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    seat post
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    steerer
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    bottom bracket
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    outside for drying
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  19. soup325

    soup325 New Member

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    fuel tank craddles
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    what happens to fillers after painting. went though six of these.
    3 x costs of 2PAC jetblack
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  20. killercanuck

    killercanuck New Member

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    Looks awesome soup! Man, that's going to be one solid ride. :)
     

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