how would i make a dual chain bike?

Discussion in 'BIKE TALK' started by JaxRhapsody, Jan 18, 2013.

  1. JaxRhapsody

    JaxRhapsody

    Joined:
    Jan 15, 2012
    Messages:
    257
    Location:
    Louisville KY
    I tried google.search.but turned up zip. I want to build a beach cruiser with a chain on both sides.
     
  2. JaxRhapsody

    JaxRhapsody

    Joined:
    Jan 15, 2012
    Messages:
    257
    Location:
    Louisville KY
    Sorry I was in a rush to leave work. I've tried looking this up and there's almost no info to be found- not even on bikeforums. I know it would require converting to a three piece crank, i just dont know what kind of hub i would need. I do know what sprokets i want to run. Should this go in another section?
     
  3. Sphinx

    Sphinx

    Joined:
    Sep 11, 2012
    Messages:
    1,563
    Location:
    Davenport, Iowa
    I believe you have it posted in the correct section. I just can't answer anything else for you. Sorry.
     
  4. cman

    cman Moderator

    Joined:
    Dec 4, 2006
    Messages:
    10,838
    Location:
    Boise,ID
    You need to find a South Paw freewheel sprocket and a flip flop hub. You will also need to run rim brakes. And run three piece cranks.

    http://www.amazon.com/gp/aw/d/B000VSWIWE

    Sent from my Rezound using Tapatalk 2
     
  5. LukeTheJoker

    LukeTheJoker Moderator

    Joined:
    Nov 17, 2012
    Messages:
    21,305
    Location:
    Capital of the Outback, Australia
    Hmmm, sounds like a cool idea...

    Luke.
     
  6. B607

    B607

    Joined:
    Sep 29, 2008
    Messages:
    3,813
    Location:
    Findlay, IL
    More chain = more friction = harder to pedal. Gary
     
  7. LukeTheJoker

    LukeTheJoker Moderator

    Joined:
    Nov 17, 2012
    Messages:
    21,305
    Location:
    Capital of the Outback, Australia
    Also, more chain +more sprocket=more cool! :mrgreen: :mrgreen:

    That being said, B607 must be correct, more friction is inevitable, and there is no need for it, only looks... Depends why you want it, and what the bike will be used for I guess.

    Luke.
     
  8. ODDER

    ODDER

    Joined:
    May 23, 2009
    Messages:
    1,305
    Location:
    Augusta, KS
    Look at my build called schwindian in the last build off. I ran a dual chain set up.
     
  9. JaxRhapsody

    JaxRhapsody

    Joined:
    Jan 15, 2012
    Messages:
    257
    Location:
    Louisville KY
    Yeah, my next questiom was going to be if a 1pc bb could be converted to a 3pc. As far as the rim brakes, ill be running one on the front.
     
  10. JaxRhapsody

    JaxRhapsody

    Joined:
    Jan 15, 2012
    Messages:
    257
    Location:
    Louisville KY
    Its going on a beach cruiser to cruise. Im trying to get all my ideas together for a ratrod.
     
  11. LukeTheJoker

    LukeTheJoker Moderator

    Joined:
    Nov 17, 2012
    Messages:
    21,305
    Location:
    Capital of the Outback, Australia
    1 piece bottom brackets can be easily converted to three piece, you just buy the conversion kit which consists of 2 new bearing cups, a 3 piece axle and bearings, lock nuts etc. EBay is where you should be looking or a decent bike shop will have them... :)

    Hope you get it working, looking forward to seeing your build.

    Luke.
     
  12. mikeeebikey

    mikeeebikey

    Joined:
    Jan 12, 2013
    Messages:
    2,020
    Location:
    NPR Fl.
    Or use 2 track gears, suicide hub times 2! You won't need brakes then!~ and do not stop pedaling at once or you'll have brakes, lots of them.
     
  13. mikeeebikey

    mikeeebikey

    Joined:
    Jan 12, 2013
    Messages:
    2,020
    Location:
    NPR Fl.
    PS: Make sure you use a heavy duty Kink(if they're still around) bmx chains.
     
  14. Skipton

    Skipton Come out and ride with The Chicago TailDraggers!

    Joined:
    Nov 20, 2008
    Messages:
    4,362
    Location:
    Chicago IL.
  15. aka_locojoe

    aka_locojoe

    Joined:
    Sep 21, 2006
    Messages:
    7,717
    Location:
    Kansas
    If you're just going for looks, use a flip flop hub and let the left side just free-wheel.
     
  16. 509clunk

    509clunk

    Joined:
    Feb 21, 2011
    Messages:
    646
    Location:
    washington state
    what about using a trike hub?? have two seperate sprockets and a coaster....
     
  17. mikeeebikey

    mikeeebikey

    Joined:
    Jan 12, 2013
    Messages:
    2,020
    Location:
    NPR Fl.
    I always thought that was so you could have 2 gearing set ups and switch the chain between them! Gotta love 80s thinking! Bet I broke 100 chains when I was a kid then....
     
  18. patxi

    patxi

    Joined:
    Jun 9, 2008
    Messages:
    43
    [​IMG]

    [​IMG]

    you will need a L/R rear hub. flip flop wont work.
    you need a southpaw free wheel. i used 18t.
    right / left drive cranks, I had my left one helicoiled to fit left pedal.
    also a smooth bore bottom bracket for 3 piece so you can adjust chain line.
    chain tensioners on the back to dial in the chain line. one side will want to go slack. i had to use half links in the chain to get better tension.

    as it is, it really serves no purpose. as the pawls in the freewheel will never line up. so, when you pedal forward, only one freewheel will be the drive side, and the other will follow suit. it depends on which freewheel kicks in first. sometimes left, sometimes right.

    when you pedal fast, the cranks start to gyroscope a bit.. feels a little strange. i just built up mine just to see if i could. i lost a bid on some original clemtwins on ebay, so i figured i could make a dual drive alot cheaper.
     
  19. pick

    pick

    Joined:
    Jan 21, 2011
    Messages:
    4,170
    Location:
    Benton, KS
    That has an awesome look to it!!! 8)
     
  20. Bicycle808

    Bicycle808

    Joined:
    Feb 19, 2011
    Messages:
    5,311
    Location:
    NJ USA
    Cheapest way to do it would be with a track hub, fixed/fixed, with an american-to-euro adaptor and a tandem left hand crank and a normal right side. This will avoid issues with pawls syncing up and the rear brake issue, but it still isn't cheap and it still has absolutely no functional benefit. I guess it might look cool, though.
     

Share This Page