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    Chainline alignment

    I have the bbs02 on a giant 29er 8 speed rear cassette. I put the mighty mini 30t on it. The cassette is 11-32t I believe.

    The chainline appears to line up now with the 11t or possibly the next gear up. Though I ride it in the low gear most often 32t. I am concerned the alignment it too far off.

    1. How off can the alignment be b4 it's too much?
    2. Can I make adjustments somehow to wither the cassette and/or motor position to help with this?
    3. Has anyone had similar issue s with the mighty mini?

    The 42t lekkie has 9mm offset which is very favorable however, with 30% less torque. 30t/42t.

    The race face looks like it also has a bit better offset but I can't tell exactly how much

    I will try and post a photo soon as I am near my bike again.

    #2
    https://lunacycle.com/lekkie-bafang-bbs02-bling-ring/ these are offset and the 36 probaly would work, I think you might even be able to get them in a 34

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      #3
      Originally posted by Dave mc View Post
      https://lunacycle.com/lekkie-bafang-bbs02-bling-ring/ these are offset and the 36 probaly would work, I think you might even be able to get them in a 34
      Thanks for the reply. Yes and The 36t only offsets a fraction of a mm if I read the product description correctly .8mm

      I found this article which gave me some ideas too. Chain line really out of wack with 30 tooth mighty mini

      I gathered from that thread that there might be some spacers available for the race face setup as well. 6mm offset plus the adapter thickness

      https://lunacycle.com/problem-solver...s-black-alloy/
      Last edited by O8ko8k; 02-05-2017, 09:47 AM.

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        #4
        Take your cassette apart and place the unnecessary tiny cogs between the granny gear and the wheel, moving the usable cogs into better alignment with the chainwheel. You'll have fewer gears, but also fewer chain derails.
        Last edited by Lance Tesla; 02-05-2017, 11:00 AM.

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          #5
          I found this while searching,. Found it useful...

          https://www.oneupcomponents.com/page...-and-non-boost

          Comment


            #6
            Originally posted by Lance Tesla View Post
            Take your cassette apart and place the unnecessary tiny cogs between the granny gear and the wheel, moving the usable cogs into better alignment with the chainwheel. You'll have fewer gears, but also fewer chain derails.
            Thanks,. Good idea!

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              #7
              I always have to adjust the chain line on the bikes I build. So far, I have only had to use freewheel spacers (https://www.amaincycling.com/wheels-...FU1gfgod84YMTg).

              As posted above, you can use chain ring spacers (http://www.niagaracycle.com/categori...FY9afgodIdYLEw) and longer chain ring bolts (http://www.jensonusa.com/Wolf-Tooth-Set-Of-4-10mm-Chainnring-Bolt). Like the article said, make sure that you have 0.8mm of chain ring bolt thread engagement.

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