Chain tensioner

Discussion in 'Motorized Bicycle General Discussion' started by hambro, Mar 1, 2010.

  1. hambro

    hambro New Member

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    I'm not sure but I think this could be incorporated into a MB build for a better tensioner. What do yo guys think?

    Dirt Bike Chain Tensioner
     
  2. corgi1

    corgi1 New Member

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    Dirt bikes ,at least higher cc ones ,run heaver chains,so I think it is worth a try
     
  3. bairdco

    bairdco a guy who makes cool bikes

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    do it. one of the main things this "hobby" needs, is a good chain tensioner.

    build a better mousetrap, my friend...
     
  4. rkorson4209

    rkorson4209 New Member

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    figure out a good way to mount it and i'll get some
     
  5. hambro

    hambro New Member

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    I think I'm gonna try it, worst thing that could happen is i'd be out 20 bucks. Looks like it could be bolted to the stay or a bracket could be fabricated to hold it in place We'll see....
     
  6. hambro

    hambro New Member

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    I guess I'm gonna buy a welder and learn how to weld too while i'm at it, seems like we can't continue to build quality bikes without having to use this skill sooner or later.
     
  7. civlized

    civlized New Member

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    You know these are available at the TSC, right. Just bolt it up to the original kit bracket. I am by no means saying to not experiment or come up with a better one. That could be a profitable venture. Just sayin' they are out there and commonly used already.

    You are going to have a blast welding! Lots of doors open up when you can weld something at the house.
     
  8. hambro

    hambro New Member

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    I will shoot over to columbus this weekend and check out TSC. If they have it there I'm sure it'll be cheaper than buying it on the internet. I am pretty sure I can make it work somehow.
     
  9. civlized

    civlized New Member

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    I've got 2 TSC stores near me. Both of them normally have these in stock. They are usually stocked on the same isle with trailer lights, towing stuff, and a small area for go carts and atv stuff. I have never seen them near the chain and sprockets. Go figure!
     
  10. rkorson4209

    rkorson4209 New Member

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    i have a tsc and they don't have them
     
  11. taddthewadd

    taddthewadd New Member

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    I am using something else you guys may not know about. It is expensive but a great solution. If you are using a mountain bike this will work for you. There is a company named "White Industries" that makes a rear hub called the "eno". It is an eccentric hub designed for verticle drop outs. When you rotate the hub it moves back and forth like a cam. when you get the desired chain tension you tighten the bolts and it stays like that. You can see it at their website if you google white industries. It costs about 150 dollars but it and the bearings are heavy duty. It's originally designed to convert a mountain bike to a single speed and eliminate the need for a chain tinsioner that you would normally need when you remove the rear derailer.

    Here is the link. I bought the one designed to work with disk brakes and mounted the top hatter and sprocket from Kings Sales. This makes an awesome setup!

    http://www.whiteind.com/rearhubs/singlespeedhubs.html
     
  12. K.i.p

    K.i.p New Member

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    Price aside, that is pretty ingenious.
     
  13. civlized

    civlized New Member

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    Baja Motorsports Chain Tensioner Assembly - 5510238 | Tractor Supply Company

    You can check your local store by zip code. If they don't have it in stock, they can get it. I have used these for quite a while and they work great. A little wider than the standard tensioner wheel, but that's a small work around.

    The spring is sold seperate.
     
    #13 civlized, Mar 2, 2010
    Last edited: Mar 2, 2010
  14. hambro

    hambro New Member

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    civilized can you post a picture of how you mounted it please? Thanks bro.
     
  15. civlized

    civlized New Member

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    Not the best pic, but the fastest I could get. I used the standard kit bracket. Drilled out a hole just a little in the slide and added my own bolt and lock nut. The spring can make it a little tricky to get on, but after you cuss a little it's done.
     

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  16. hambro

    hambro New Member

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    that looks pretty good, I'll be doing that this weekend after a trip to TSC. Thanks civilized
     
  17. rockvoice

    rockvoice New Member

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    I have bought that exact set-up, the side plate metal is very thin and twists , also the wheel itself has no bearings so it doesnt work to well. I still buy them cause i build alot of stretch cruisers and they work well for a pedal side tensioner to clear the motor.
     
  18. civlized

    civlized New Member

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    The wheels in all that I have bought do have bearings. I'm using an ATV engine and have had no problems with twisting. Are you talking about the bracket or the arm on the roller?
     
  19. rockvoice

    rockvoice New Member

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    the bracket itself wanted to twist making the chain come in at a slight angle.
    the unit in that photo doesnt have bearings , neither did mine.
    if they now have them with bearings it may work well
     
  20. civlized

    civlized New Member

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    Gotcha about the bracket. The wheel in that picture does in deed have a bearing. If you click the larger view image, you can clearly see it and the snap ring holding it in.
     
    #20 civlized, Mar 2, 2010
    Last edited: Mar 2, 2010

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