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RRBBO13 THICK as a BRICK <Last peek!>

Discussion in 'BUILD OFF 13 BUILD JOURNALS' started by Toeslider, May 1, 2018.

  1. OddJob

    OddJob

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    +2 ^ on leaving the amber. Scratches, smatches. This is Rat Rod Bikes, not Pristine Rod Bikes! :bigsmile:
     
    SwissGuy likes this.
  2. Toeslider

    Toeslider

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    Dec 11, 2011
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    Central Ohio
    Ugh! I love it when you're pressed for time and you end up having to deal with problems that shouldn't be problems!

    Tonight I was messing around with some crank and chain wheel things and just couldn't get things to fit right. Took everything off to investigate and I'm 98% sure my crank shaft is installed backwards! Easy fix, right? Not so fast, turns out none of my bottom bracket tools will clear the long, fat bike shaft. I would have to drill one out (which I may do) to fit over the shaft and then wrench it with an adjustable wrench. For now though, after fiddling with it a bit and taking into consideration what I want to do, I think I can juuust make it work for now, until I have time to make it right.

    The weird thing is, I rode this bike after I bought it, and I have never messed with the bottom bracket. Just to be sure I got the original cranks out thinking they might be a different offset or something and they really don't fit right either! It's almost like it was put together wrong but good enough that it worked. In my mind, the correct bottom bracket and crank assembly would have the same amount of axle showing through each crank, but if I do it that way I get like 3/4 inch clearance on the non-drive side, and basically none on the drive side. Looking at the bottom bracket shaft it sure looks like if I turned it around everything would even up:

    IMG_5342.JPG
    I know this bike has some crazy frame offsets, but at least where the cranks turn the chainstays are equal distance from the center of the frame. Am I wrong in thinking the shaft should be longer on the drive side, where the sprocket is?


    IMG_5343.JPG IMG_5344.JPG

    Wasn't anticipating dealing with this, but as long as I can get the crank arms to clear the frame I'll be ok.
     
  3. OddJob

    OddJob

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    Can you slide the crank arms on the splined BB spindle, tighten them down, and then measure the distance between the chain stay and the crank arm at the threaded pedal hole. The distances should be the same or very close. And it is common for the amount of BB spindle showing to be different on each side.
     
  4. HuffnPuff

    HuffnPuff

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    Lake Macquarie, Australia
    Don't screw in BB have opposite threads on each side to help stop them unscrewing themselves during riding? That would indicate, assuming a cartridge type BB that it can't be put in backwards. I'm assuming cartridge BB because there are no adjustments visible.

    Can you pop the crank/chainring on and check the chain line?

    Does look weird though.
     
    OddJob likes this.
  5. Toeslider

    Toeslider

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    Welp, problem solved, I guess...

    After reading responses here I decided to put the original setup back on with spacers and everything. The shaft was pretty deep in the crank on the drive side, but I still could get the end bolt on. I tightened it up, and tightened, and tightened...then the shaft started getting smaller on the other side. Turns out you can move this shaft wherever you dang well please in this bottom bracket. Placement is controlled by spacers and how much you tighten the end cap on each side. Don't know that I've ever came across one like this before, maybe I did and just wasn't paying attention. I always thought the offset was fixed.

    Anyway, makes sense now, and makes things a lot easier to sort out! Glad I didn't spend all night drilling out one of my tools!

    IMG_5345.JPG IMG_5346.JPG

    Oh yeah, I got a sexy new chainwheel. More on the story behind that later...

    IMG_5347.JPG
     
  6. HuffnPuff

    HuffnPuff

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    Wow. Haven't seen one like that before
     
  7. Toeslider

    Toeslider

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    Really going to be taking this one down to the wire, but there's so many cool details I want to get in before the deadline. Here's a few progress shots:

    IMG_5351.JPG IMG_5352.JPG IMG_5353.JPG IMG_5354.JPG IMG_5355.JPG

    Put it together in your mind while I do it for real...
     
    ADRNLN, kingfish254, toro1978 and 2 others like this.
  8. The Renaissance Man

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

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    The painted marker lenses look good. Was liking the original amber but now I can see your vision for them. :thumbsup:
     
    Toeslider likes this.
  9. Toeslider

    Toeslider

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    Still mocking this up, will be straightened up when done. Hope I can make this look good by the deadline. Need to sleep on a few things but I think I have it sorted. The build-off bike may be held together by wire and duct tape, but it should cross the finish line!

    IMG_5360.JPG IMG_5361.JPG IMG_5362.JPG IMG_5363.JPG
     
    ADRNLN, kingfish254 and toro1978 like this.
  10. kingfish254

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

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    And people say I go over the top :D. Rock on brother! This is cool fun stuff.
     
  11. Toeslider

    Toeslider

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    A few more details before the beauty shots are revealed. I think me and another 80-90 rat rodders will be spending the afternoon tomorrow doing a photo shoot of their bikes! Everyone wants to get that last detail in.

    Here's a few more things I got nailed down.

    Federal law says every bike has to have a chain guard, right?:

    IMG_5371.JPG

    Did all the "little" things to the "exhaust" today. Here is how it is looking:

    IMG_5373.JPG IMG_5374.JPG IMG_5375.JPG

    I'm anxious to shoot the "real" pics. I think it'll photograph well. Riding it from my porch to my garage counts as riding, doesn't it?
     
  12. OddJob

    OddJob

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    Ride video or it didn't happen! :bigsmile:

    That top down photo (second from the bottom) really shows off the lines and flow of your doodadery. Get a good flat background for your final shot so we can see all the details. Nice tie in with the gold and silver on that dark red frame!
     
    SwissGuy likes this.
  13. RustyGold

    RustyGold

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    I think you fall short of the requirements...
    Untitled.jpg
    ...but, those requirements would be for selling a new bike. We haven't reached quite that level of tyranny here in the States yet :grin:.

    Jason
     
  14. kingfish254

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

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    You are definitely supersizing the scale of everything to match the fatty bike!
    Get them pics posted!
     
  15. Toeslider

    Toeslider

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