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  1. #1
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    Problem with the Rennan Rollenlager.

    I bought a Rollenlager a few months ago to put on my Single speed. I installed it the other day but I have encountered a problem with the adjustability or lack there of. I measured the front chainring and rear cog and they line up perfectly. But when I put the tensioner on there it is to far to the outside of the chainline. If I were to move the front chainring and the cog to the outside more then the tensioner would be too far inside and I would have he same problem.

    Anyone else have this problem and if so what did you do about it?

    I doubt I can return it since I bought it online a while ago and have since lost the receipt.

    Here are some pics to show the problem.

    This one show the straight chainline.


    This one is from above and you can see how the tensioner pulls the chain off line ever so slightly.


    And in this one you can see how the chain is rubbing the tensioner.

  2. #2
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    Have you tried adding a thicker spacer to the left of the pulley (and getting a corresponding thinner lock nut)....

  3. #3
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    There is no locknut on the left. It is a solid bolt that goes through the center of the bearings. Only thing I could do with that is turn the bolt head down on a lathe and add a larger spacer to the right side.

  4. #4
    one chain loop
    Reputation: fishcreek's Avatar
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    how about using a slightly longer bolt?
    everything sucks but my vacuum cleaner.

  5. #5
    local trails rider
    Reputation: perttime's Avatar
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    I cannot see it clearly... is that a spacer between the tensioner and the deraileur hanger?

    There was something about adjustments in the short instructions that came with mine. Is there anything more you can try reshuffling or reversing?

    You could also ask the guys behind the product:
    http://www.rennendesigngroup.com/team.html

  6. #6
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    My instructions didn't say anything about adjustments. There is no spacer between the hanger and tensioner.

    I contacted Rennan about this and this is what I got in return.

    The Rollenlager was designed to work with most setups but from time to time users do encounter this problem you are having the solution is to space out the roller more.

    send me your address and I'll send you some of the small 1mm spacers to space the roller out

    thanks
    George
    Hopefully the spacers will work. It would be pretty *****en if it does.

    I wanted to ask here first to see if others had had this same problem.

  7. #7
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    Reputation: ryan123's Avatar
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    Any luck?? Did it work?

  8. #8
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    Yup, it worked perfectly. I have been riding it more than my geared bike the last couple of weeks and it's been flawless.

    THANKS!!

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