37 Schwinn Admiral - Klunker New YST Bottom Bracket

Discussion in 'BUILD OFF 8 - TRADITIONAL BIKES' started by socal_jack, May 8, 2013.

  1. kingfish254

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

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    Re: 37 Schwinn Admiral - Klunker practice skid vid pg 4

    I love the action video and photos that you klunker guys are doing.
    Bike is looking great.
     
  2. SCHWINNRAY69

    SCHWINNRAY69

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    Re: 37 Schwinn Admiral - Klunker practice skid vid pg 4

    That's a real sharp klunker! 8)
     
  3. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker practice skid vid pg 4

    Thanks! The handling is challenging in tight stuff, the head angle measured ~63-64 degrees, slack even by downhill MTB standards I think(though some of the new bikes are in the range) . It needs more offset, could really use a nice old truss fork. I have a nice one in blue, but would need to re-paint, graphics & patina match etc no time now, but...

    Figured out a new location this morning going to go out late afternoon and try again, even though this has been called a skid it's more of a trail brake maneuver like this portion of vid from Klunkerz(my $ copy signed by Billy)

    [​IMG]
     
  4. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker practice skid vid pg 4

    Skid turn take 2, the setup is better but the rut had my attention, may take a folding shovel out there and groom it a bit, removed a bunch of rocks. Need to hit it fast faster, but if you hit the rut you're in the bushes.

    Ordered a QR for the seatpost, hopefully it'll work with the built in one.

    [​IMG]
     
  5. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker practice skid vid take 2 pg 5

    Adjusting the seat out on the trail was pain, found this Giant brand seatpost clamp on the bay for $8 delivered, pretty satisfied with the fit and works great, no more carrying a wrench. Also looking at some lighting options. More video work tomorrow, maybe a couple of jumps after the skid turn work.

    [​IMG]

    Took a brillo pad to it to knockdown the logo
    [​IMG]

    [​IMG]

    Would like to use the first bracket but it forces raising the bars which are already almost too high for my taste but I might be able to flatten the side near where the stem would go. The second bracket would require cutting then spreading. that far may cause the chrome to buckle. Still need to figure out a mounting method for the battery case but may do similar to my Elgin using pipe hangers.

    [​IMG]

    [​IMG]
     
  6. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Still practicing, important safety tip, make sure those bars are really tight and cinch up that QR a bit better

    [​IMG]
     
  7. junknutz1975

    junknutz1975

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    That's a cool airborne action shot!

    Great build btw :wink:
     
  8. ifitsfreeitsforme

    ifitsfreeitsforme

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Great shot! Great bike.
     
  9. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Thanks, I've been having a blast on this thing this past week!

    The first jump I caught a lot more air(camera off of course) but when I came down the handlebars rolled forward, didn't have a wrench with me to tighten up so I yanked them back and had to take it easier on the next few. The front wheel also moved a bit due to QR not tightened down enough, fork is smooth in the dropouts not really meant for QR.

    Got some things to fix that came out from riding. The gearing is way too high for trail riding around here at 40x22, the wider BB also moved the chainline out too far compared to the rear about 3/16-1/4", can really hear and feel it in the chain under torque. Will be putting on a 36T chainring and switching the rear to a 21T Nexus 7 cog I have that has about the right amount of offset before final shots and videos. I need to pedal up some steep stuff for a final vid and I'd need to push too much with the present gearing.
     
  10. cman

    cman Moderator

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Great bike and great actions shot....now do you have the costume figured out? :mrgreen: :mrgreen:
     
  11. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Ha! The costume is gonna be the tough part, especially those period running shoes.

    [​IMG]
     
  12. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Nexus 7 donor cog, had to pull off one link and chainline still about 3mm off but that's acceptable.

    [​IMG]

    Did some work on the light cut and bent the bracket, won't really work like that as holes don't line up so might incorporate part of original headband. Still not sure this will make it to the final.

    [​IMG]

    Probably bend back these tabs and mate up, use original headband piece as an extender

    [​IMG]

    Bike with new cog in rear, looks better anyway the old one was black, gonna be even harder to pedal until the new chainring comes in. Too bad this stuff is 5 arm 110 bcd, I've got a bunch of chainrings in 4 arm.

    [​IMG]
     
  13. kingfish254

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

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    Re: 37 Schwinn Admiral - Klunker Light work and a new cog

    I missed the past few days of your updates. Looks like you are having a blast. Looking sweet!
     
  14. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Light work and a new cog

    I'll take it out tomorrow for some more fun and vids but throw on the 36T chain ring before I do that one is very plain. Cleaned her up for some money shots today, calling it done and do a finished post tomorrow. The light wouldn't be something on a Klunker, I'll keep working on that for cruiser mode riding offline.

    [​IMG]
     
  15. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Calling it done

    Link to finished thread

    http://www.ratrodbikes.com/forum/viewtopic.php?f=78&t=75602&start=0&st=0&sk=t&sd=a

    Meant to put a parts list in finished thread but didn't get home in time

    Items from parts pile
    Frame - Likely 1937 Schwinn due to clean/uniform serial number
    Bars - Skull skates
    Rims - Sun Rhyno Lite
    Front hub - Shimano XT
    Saddle - Brooks
    Chain - KMC
    Tires - Specialized Roller
    Tubes -?
    Seatpost - Schwinn ?
    FMF BB adapter
    Crankset - Sugino Super Maxy
    Grips - ODI lock on
    Rear cog - 21t from Nexus 7
    Spoke Nipples
    Pedals - VP bear claw clones

    Items purchased for RBBO8 build
    Porkchop chainring and sealed bearing headset
    Rear Hub KT alloy HD
    Front/rear spokes - Wheelsmith
    Seatpost QR - Giant
    SE Landing Gear fork
    Shimano UN55 bottom bracket(still not correct, need a track bottom bracket, cranks way offset to one side)
     
  16. 41DX

    41DX

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    Re: 37 Schwinn Admiral - Klunker Last bits coming together

    Great Shot!
     
  17. socal_jack

    socal_jack

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    Re: 37 Schwinn Admiral - Klunker Link to finished thread

    Thanks!

    The bottom bracket adapter from FMF didn't really work that well with this frame, the cranks ended up offset to a degree that I could feel while riding, though some of this is due to the bottom bracket itself not being lined up well. Not sure if they even used frame jigs back then, as I've seen similar on other prewar bikes.

    Drive side
    [​IMG]
    other side
    [​IMG]

    Found this YST brand sealed bearing conversion, the collars allow you to adjust the alignment nicely

    [​IMG]

    Much better
     
  18. supergoob

    supergoob

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    Interesting...where'd you find that at?
     
  19. socal_jack

    socal_jack

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