RRBBO13 J.C. Special / Sharkruiser

Discussion in 'BUILD OFF 13 BUILD JOURNALS' started by MONARKofSoCal, May 2, 2018.

  1. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    I have a weekend rat rod bike ride coming up saturday
    maybe I should make it a bare bones cruiser and take it for a test ride to check
     
    GuitarlCarl likes this.
  2. Funkme

    Funkme

    Joined:
    Jan 2, 2012
    Messages:
    3,171
    Location:
    Mykonos,GREECE
    Really liking the stance of this build. lean and mean.
     
  3. The Renaissance Man

    The Renaissance Man __CERTIFIED DIVER__ (Open Water & Open Dumpster) Pro Member

    Joined:
    Nov 24, 2012
    Messages:
    7,822
    Location:
    The Tropics of Alabama
    Be very careful! If that tire bottoms out into the fork it will send you over the bars!
     
    Chad T and Duchess like this.
  4. Duchess

    Duchess

    Joined:
    Jun 13, 2015
    Messages:
    824
    Location:
    US occupied MA
    If you want to use the 24" fork without worry of bottoming out, it might be possible to build bigger rocker arms or a piggy back bracket between the truss rod ends and the existing rocker arms so that the axle would be moved farther from the inside of the fork crown. Since you would be making that from scratch, it could be made to meet the bare minimum needed for a safe clearance. Or so I think.
     
  5. kingfish254

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

    Joined:
    Aug 31, 2009
    Messages:
    25,637
    Location:
    Historic Savannah
    Yeah, be careful witth the smaller rat trap. @Critter1 bottomed out his "Lackluster" back in BO7 and went over the bars and messed up a beautifull paint job a little.
     
  6. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    Well no one ever said rat rodding was safe
     
    The Renaissance Man likes this.
  7. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    I decided to go ahead and start making j.c special into a rider to test out the clearance on the springer
    this is what it looks like on the 24" rattrap
    [​IMG]

    The clearance was an .25 of an inch less than the the rocker bump stop so i figured I would check the 26" rattrap
    [​IMG]

    but i didn't like how it sat with the bike mocked up
    way too high in the front

    so this may be my compromize
    [​IMG]

    basically the only modification I did was swap out the front truss bar for the longer one from the 26"
    [​IMG]

    saturday I will test ride the bike to see how well this modification performs
     
  8. kingfish254

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

    Joined:
    Aug 31, 2009
    Messages:
    25,637
    Location:
    Historic Savannah
    Good thinking there on the rocker fork swap.
     
  9. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    I took J.C special for a test run and found some stuff out

    the frame is tweeked close to the headtube
    and the extended 24" didnt seem to actuate properly

    I dont know if it is due to the frame being out of alignment
    or if modifying the rattrap in any form renders it useless as a springer
    or another unknown problem like maybe having the seat set far back
    altered the weight balance enough to not allow the springer to actuate

    So I will put on a standard 24" rattrap and see how it performs

    Here is how i took out J.c Special this weekend[​IMG]

    Seat not the correct seat i will be using
    and is set further back then what i have planed

    Sprocket style will be different
     
  10. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    I decided before i hack up a rear fender i would check to see if i could use the front fender from the same set
    [​IMG]

    first i had to trim the sides for the area where the skirts attach
    [​IMG]

    once that was done i had a choice to make
    remove the cross bracing on the frame and reweld it
    or alter the fender
    I want to stay away from any frame modifications so here are the 2 spots I had to open on the fender for clearence
    [​IMG] [​IMG]

    but after all the modifying here is the end result
    looks like the front is the perfect size to use
    [​IMG]

    After I was satisfied I drilled the holes in the fender to bolt everything together

    while i was at it I added 4 holes to the skits for another murray / j c higgins accesory
    care to guess what it will be used for
    [​IMG]
     
  11. kingfish254

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

    Joined:
    Aug 31, 2009
    Messages:
    25,637
    Location:
    Historic Savannah
    Love how the fender skirts turned out.
    Stumped on the accessory.
     
    Scribble likes this.
  12. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    Still working on J.C. Special
    but since it is july it is time for me to work on Sharkruiser
    Hopefully I will have done in time for shark week on discovery

    the frame Specialized Shark cruiser
    [​IMG]

    The pedals odyssey shark bite
    [​IMG]

    the Handlebars occ schwinn stingray (to give that shark nose apperance
    [​IMG]

    the steam is a tilt style that i found at local co op (fits the stingray bars perfectly)
    [​IMG]
     
    kingfish254, Scribble and Falstaff like this.
  13. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    As for the progress on J.C Special

    Here is the murray/higgins accessory

    I went through many different possible locations
    but this was the best spot so that all 4 of the mounts could be attached
    gives it a rear engine Indycar look
    [​IMG]

    this mockup is with the standard size 24" rattrap springer
    not the extended version i had on earlier
    [​IMG]

    luckily I also found a better gooseneck
    need to clean up a bit of the headtube to get it to sit lower
    [​IMG]

    the fender required a bit more cutting to clear the chain on upper and lower section
    [​IMG]

    Other side but no side pipes in this shot
    [​IMG]

    I was trying to have a modified murray sprocket installed at this point
    but I noticed I cant go larger than 44t
    Realistically I should go even smaller than that to fit inside the chainguard
     
  14. Duchess

    Duchess

    Joined:
    Jun 13, 2015
    Messages:
    824
    Location:
    US occupied MA
    Could be powered by an Offenhauser 4-cylinder with the "drive" facing forward as if the transmission was at the BB.
     
    handyandy1100 likes this.
  15. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    I was thinking more like a v8 powered
    but i like the idea of the bb as the transmission
    or maybe a turbo
     
  16. GuitarlCarl

    GuitarlCarl

    Joined:
    Sep 14, 2013
    Messages:
    6,026
    Location:
    Bradley Illinoiz
    I may have missed it but did anyone suggest flipping your rockers? 24" fork with the rockers flipped forward and left and right swapped, sits nice with a 26" wheel. Barely any chopper feel at all and it throws your front wheel out there for the long lean look. I believe in recent builds @The Renaissance Man and I have both flipped our rockers...

    Carl
     
  17. The Renaissance Man

    The Renaissance Man __CERTIFIED DIVER__ (Open Water & Open Dumpster) Pro Member

    Joined:
    Nov 24, 2012
    Messages:
    7,822
    Location:
    The Tropics of Alabama
    I'm really liking the overall stance, looks brawny!
    Nice job trimming the fenders to get the fit right.
     
  18. Verrt

    Verrt

    Joined:
    Sep 26, 2012
    Messages:
    308
    Location:
    Chicago, IL
    I believe that's true, but I thought it had happened quite some time ago, not recently...



    :D
     
  19. kingfish254

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

    Joined:
    Aug 31, 2009
    Messages:
    25,637
    Location:
    Historic Savannah
    Great work on the fender and skirts. The manifold exhaust looks perfect on there.
     
  20. MONARKofSoCal

    MONARKofSoCal

    Joined:
    Jun 5, 2012
    Messages:
    472
    No one has suggested flipping the rockers because I believe I mentioned early in the build I was going for an operational springer

    I have flipped rockers on a couple of builds and noticed that it has almost no spring action
    since this is inspired by indy car racing I wanted to go for something operational even if it ment sacrificing long and lean
     
    GuitarlCarl likes this.

Share This Page