Chains How much play is too much?

Discussion in 'Transmission / Drivetrain' started by DanTheDIYGuy, Aug 2, 2016.

  1. DanTheDIYGuy

    DanTheDIYGuy Member

    Hello,
    I just finished rebuilding a motorbike and this one has a bit more play in the chain than I'm used to. I have a top and bottom chain tensioner system set up that works very well in keeping the chain tight:
    [​IMG][/IMG] [​IMG][/IMG]
    Bottom tensioner pushes up with the help of 2 springs, top has two springs as well, but pushes down (old photo, only difference is I added the second spring to the top tensioner)
    I rode the bike for a short 1/2 mile to break it in and once I got back to my garage the chain had stretched to about 3/4" of play. A good 1/2" more play than I've heard is safe. Just wondering if you guys think this system will work, of if I should shorten the chain by a half link. Personally I think a half link would be wise, but if anyone else has other ideas I would certainly be open to trying them. Thanks!! :)
     

  2. crassius

    crassius Well-Known Member

    if you get those springs to work, one would expect (or need) no play at all
     
  3. DanTheDIYGuy

    DanTheDIYGuy Member

    Agreed. And it just occurred to me that I could switch the bottom tensioner out for the stock rigid chain guide to reduce slack...
     
  4. DanTheDIYGuy

    DanTheDIYGuy Member

    Resolved! All I had to do was change to a rigid bottom guide and spring tensioner on the top. Thanks Crassius!
     
  5. crassius

    crassius Well-Known Member

    that's why we're here
     
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