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  1. #1
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    It's the n00b Lefty question.......bearing migration

    What tells you you have to reset your bearings?

    Do you measure the Lefty's overall length? Or, is it a feel or sound.

    My Lefty seems to have lost some of it's plush, but that could be I'm riding faster and harder now. I like to keep my equipment in "like new" condition as best I can. I am running a softer red spring for my 180 lbs weight. I like it a little squishy......
    Last edited by ziscwg; 10-25-2007 at 02:07 PM.
    Lead by my Lefty............... right down the trail, no brakes.

  2. #2
    mad aussie
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    The bearings have migrated if the fork loses its negative travel, ie it tops out or clunks after you compress it and it returns. It will also lose height, the tech manual on Cdales website will tell you what the length should be.
    Its a simple process if you follow the instructions.

    Kevin

  3. #3
    All Lefty's, all the time Moderator
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    How long have you been riding it? I do a reset about once a month. Some say this is a PITA, and other forks don't need it. I check my tire pressure more frequently, and it takes about the same amount of time. It will be migrated for a while before it starts to top out, but topping out is a good shot over the bow, that you need to do a reset, if you don't want to attend to it with some regularity. Rock on.
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



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  4. #4
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    Quote Originally Posted by MendonCycleSmith
    How long have you been riding it? I do a reset about once a month. Some say this is a PITA, and other forks don't need it. I check my tire pressure more frequently, and it takes about the same amount of time. It will be migrated for a while before it starts to top out, but topping out is a good shot over the bow, that you need to do a reset, if you don't want to attend to it with some regularity. Rock on.
    I have about 600 mi on the bike since I got it in May of this year.
    Lead by my Lefty............... right down the trail, no brakes.

  5. #5
    mad aussie
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    Its long overdue. Like Mendon I reset mine at least once per month, sometimes even once per week if I am doing a lot of long miles. Cannondale reccomend from 10-25 hours depending on how hard you ride.

    Kevin

  6. #6
    All Lefty's, all the time Moderator
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    What da Wombat said
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



    www.mendoncyclesmith.com

  7. #7
    Cannondale Snob
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    OK, since I bought my bike used I have no documentation on anything for it.

    What is bearing migration, and how do you check it and correct it? I've had my bike since mid-March and have likely but a few thousand miles on it without doing anything to the fork but changing the air pressure...

    Also, does the Fatty have the same issue?
    '06 Cannondale Rush 1000 4" travel 27lbs
    '04 Cannondale F600 SOBE -STOLEN!
    '96 Cannondale Uber-V 6" travel 30lbs

  8. #8
    All Lefty's, all the time Moderator
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    Quote Originally Posted by RiskEverything
    What is bearing migration, and how do you check it and correct it?
    Check the FAQ's, it's been explained so many times you can't swing a dead cat without hitting a thread on it.
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



    www.mendoncyclesmith.com

  9. #9
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    Quote Originally Posted by Flying Wombat
    Its long overdue. Like Mendon I reset mine at least once per month, sometimes even once per week if I am doing a lot of long miles. Cannondale reccomend from 10-25 hours depending on how hard you ride.

    Kevin
    Well crap, I guess I will have to figure out how to do it. Some much for the once a year maint thing I like to do. I remember a thread on this bearing reset somewhere around here with pics. If someone has that link, that would be nice. I was not doing much tonight anyway.
    Lead by my Lefty............... right down the trail, no brakes.

  10. #10
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    "I remember a thread on this bearing reset somewhere around here with pics"
    There's a sticky at the top of the forum called "******* Read This First **********..."
    The link is in there, towards the bottom of the first post called:
    "Lefty Max 'Illustrated Bearing Reset' Thread"
    There's a bunch of good stuff in that sticky - check it out!


    "I was not doing much tonight anyway."
    You're still not doing much tonight. Only takes 5 minutes.
    (OK OK - the first time through takes longer)


    " OK, since I bought my bike used I have no documentation on anything for it."
    Lefty manuals and other docs can be downloaded here:
    http://www.cannondale.com/tech_cente...ion/lefty.html

    It's actually a good doc to have, shows you how to do all the basic maintenance
    '05 Prophet 1000
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    '08 F6 Lefty (son's)
    '08 F6 (daughter's)

  11. #11
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    Lead by my Lefty............... right down the trail, no brakes.

  12. #12
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    I read the thread and looked at the pics.

    The only question is:
    What is the best way to extend the fork? (I'm assuming the bike needs to be in a stand.)
    Do I grab the wheel and pull with my other hand on the head tube? Or pull from the disk brake area?
    Lead by my Lefty............... right down the trail, no brakes.

  13. #13
    discombobulated SuperModerator
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    Quote Originally Posted by ziscwg
    I read the thread and looked at the pics.

    The only question is:
    What is the best way to extend the fork? (I'm assuming the bike needs to be in a stand.)
    Do I grab the wheel and pull with my other hand on the head tube? Or pull from the disk brake area?
    In a stand is good or even hanging from a hook... One hand for firmly telescoping the fork and the orther to brace the top half, like at the stem or something...
    CDT

  14. #14
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    how is it with the lefty with fox internia. is the reseting of the bearing done the same way as with dlr2? open up the top of fork and ........

  15. #15
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    I did this Friday night and OMG, it totally made a difference in the shock. My plushy feeling is back. In fact, it maybe a bit too much now. It feels better than when it was new.

    When I got the cap off, the knob assmbly stuck out (fork extended) about 2 inches. I just grabbed the top by the top tube and the bottom by the front break. After about 25 fairly gentle pulls, I got the top to look like pic #5 in the bearing reset thread. It measured 725 mm total, which is right in the middle of CDales spec range. It also stopped moving at this point when I pulled the fork.

    I rode on Sat with it was so pleased. There were times where I thought I was riding on the road....................
    Lead by my Lefty............... right down the trail, no brakes.

  16. #16
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    Quote Originally Posted by jdr01930
    "I
    "I was not doing much tonight anyway."
    You're still not doing much tonight. Only takes 5 minutes.
    (OK OK - the first time through takes longer)
    e
    Yeah, it took 15 minutes to do. However, 7 of those were figuring out the ring halves that you take off DO NOT go back totally into the shock tube when you put the shock back together. I had to get the micormeter out and measure to figure there was no way they were going all the way in there, just the underside ridge does.

    It takes me just as long to wipe off my chain and relube it.
    Lead by my Lefty............... right down the trail, no brakes.

  17. #17
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    I have recently had my DLR serviced but it is topping out already, I think, reading this thread that it needs the bearing re-setting but I am sure that I read that this is not so easy for the consumer on the DLR. I cant afford to take it to the shop and pay 80 each time so I want to do it myself. Is it more difficult on the DLR and if so what do I need to do?

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