Tensioner on pedal side chain

Discussion in 'Motorized Cruiser Bicycles' started by SdCruizer, Mar 1, 2012.

  1. SdCruizer

    SdCruizer New Member

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    Ive tried, and tried for hours a few different times to get my chains set correctly. Im using that nice kip tensioner on the engine chain and I cant use a 1/2 link because they are to wide. My master link wore a groove in the tensioner bracket so I even got rid of that.

    To have perfect engine tension my pedal chain is so loose it falls off under hard pedaling.
    So I have to keep the rear wheel cocked slightly so the pedal chain is tight, and the engine chain is tight.
    Ive spent so much time adding a link to the engine, to find out then its way to long

    taken away link on pedal, even tried a half link to find out its way to tight.


    so it wouild be ideal to use a tensioner on the pedal chain, this way my rear wheel can be positioned straight.
    I just saw this pic today

    [​IMG]


    That looks like a tensioner. Is there someone selling this or do I have to make one. If anyone has one made can you post a pic and the parts so I can get on this.
     
  2. SdCruizer

    SdCruizer New Member

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    #2 SdCruizer, Mar 1, 2012
    Last edited: Mar 1, 2012
  3. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    Get some washers that fit the axle. Put them on the left side. You will have to spread the frame a bit to put the wheel back on. Use a hammer handle to coax it into place, and move the tensioner where it supports the chain.
     
  4. SdCruizer

    SdCruizer New Member

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    are you talking about my setup now?
    or something else
     
  5. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    I am always in a hurry trying to do three jobs at once. Why would a tensioner be on a single speed bike anyway? I need more data, sorry. (c)
     
  6. SdCruizer

    SdCruizer New Member

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    in my first post I said to get the correct tension on the engine side chain the pedal chain gets too loose, if I add links, remove links on either side it wont work
    engine side gets too slack, or pedal side is way to tight

    So if there was a way to tension the pedal side that would allow me to keep the wheel at a 90 degree angle

    My wheel is centered but top and bottom are tipped slightly if that makes sense
    mine is like this \ I want this | ( exaggerated of course not that bad of an angle)

    right now im like 95 degree angle in order to keep the pedal chain tight enough not to skip and fall off under hard pedaling
    or imagine engine chain side in the center of the slot for the axle bolt, pedal side all the way to the rear of the slot for the axle bolt
     
  7. 2door

    2door Moderator
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    You could always fabricate a little bracket and use a derailer sprocket like this. Sorry this was a pre-paint job construction photo but you get the idea.
    Tom
     

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  8. SdCruizer

    SdCruizer New Member

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    even though I have a welder I dont want to weld
    want a bolt on part
     
  9. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    You want a tensioner wheel like tandum bikes have. Fab a bracket. Sun bikes has them/makes them.
     
  10. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    I built a long beach cruiser and use one on the peddle chain.
     
  11. SdCruizer

    SdCruizer New Member

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    is sun bikes a website or someone here?
     
  12. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    Any bicycle dealer can help you. U want a bearing wheel and a frame bracket. Not that expensive. (c)
     
  13. culvercityclassic

    culvercityclassic Well-Known Member

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    This is my way...simple, easy and you can use the kit roller.

    This is what I use on all my bikes....
     

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  14. SdCruizer

    SdCruizer New Member

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    did you make the bracket, looks nice
     
  15. culvercityclassic

    culvercityclassic Well-Known Member

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    I do make that bracket, on the newer design it is mounted behind the rear drop-out on the axel. Much cleaner look and no need for a second nut.
     
  16. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

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    The Best of the Best are members here. (c)
     
  17. SdCruizer

    SdCruizer New Member

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    What about this
    I would like to have first spring loaded just because it gives the chain some play

    [​IMG]

    I just bought this on e bay $20 shipped
    Have no idea if it will work but it looks like it will bolt up to my nut, and the sprocket slides in and out to align with the chain
    This was the only one I could find and had to wait until the bid was over so I wouldnt loose it



    I wouldnt mind having a back up plan, if you could pm me a price of that bracket you make too
    If its not to much I will buy it also
     
  18. SlowBalt

    SlowBalt Member

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    I just use the kit tenshioner on the pedal side.
     
  19. SdCruizer

    SdCruizer New Member

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    I tested that too and it works, but looks ugly

    my bike looks really nice with all the parts ive used on it, so that e bay tensioner will help with the looks, if I can use it

    plus I like spring loaded
     
  20. happycheapskate

    happycheapskate New Member

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    I did that too. If you round off the corners and paint it, it's not so bad.

    I have made 1x1 tensioners out of old rear derailers before. You can leave them intact, and run the chain normally, but short as possible, or cut the pulley cage down and use one pulley with a long bolt and locknut, best with some kind of big washer to keep the chain from ever possibly skipping off there. You can cut a spoke or piece of wire hanger to substitute for the cable to keep it in position, or just replace the limit screws with long allen bolts and a drop of loctite on them. It looks nice, and I never dropped a chain even on a mtn bike.

    There are commercial products now like the one shown above, but you can make mine for $0-5 easily.

     

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