Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 32
  1. #1
    Senior Member
    Join Date
    Oct 2005
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    slipping and I don't know why

    Ok on my commute this morning I'm holding a track stand. When I go to sprint out of it the crank arm slips about an eight of a turn. I compensate and keep going, but it scared the crap out of me. It also slipped when throwing a skid a bit later and once again coming out of a trackstand. Any help as to what this could be and how serious would be nice.

  2. #2
    aka mattio queerpunk's Avatar
    Join Date
    May 2005
    Posts
    5,412
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    what's your hub like? it could be stripped. what kind of hub and cog are you using?
    the hipster myth.

    i practice vagabondery.

  3. #3
    Senior Member terrapin04's Avatar
    Join Date
    May 2004
    Location
    Minneapolis
    My Bikes
    1998 Huffy 18 speed
    Posts
    96
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Tighten up those chainring bolts

  4. #4
    Senior Member
    Join Date
    Oct 2005
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Man I'm afraid of it being the cog. It's a surly hub with a eai cog and dura-ace lock ring. I've been running it for two months with no problems until today.

  5. #5
    aka mattio queerpunk's Avatar
    Join Date
    May 2005
    Posts
    5,412
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    eighth of a turn might be more than lose chainring bolts though

    i was scared ****less when my chainring bolts were lose and i thought that my hub was stripped...
    the hipster myth.

    i practice vagabondery.

  6. #6
    Senior Member
    Join Date
    Oct 2005
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    hmm I'll check the chainring bolts. That was something I installed without the proper tool. Used a screwdriver. So I'll check that. I'm just worried about riding home tonight and stripping the hub crossing the williamsburg bridge.

  7. #7
    roll'em high shants's Avatar
    Join Date
    Feb 2005
    Location
    columbus, ohio
    Posts
    2,392
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i'm afraid to say that it's probably to do with your rear hub -- the cog/lockring. good luck.

  8. #8
    aka mattio queerpunk's Avatar
    Join Date
    May 2005
    Posts
    5,412
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yeah. a lot of times hubs can be stripped if they're installed improperly-- did you do it yourself?
    the hipster myth.

    i practice vagabondery.

  9. #9
    roll'em high shants's Avatar
    Join Date
    Feb 2005
    Location
    columbus, ohio
    Posts
    2,392
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    might not even be stripped, mind you. a lockring that was not fully tightened can work its way loose and allow the cog to spin back without stripping threads. i've seen this happen several times on friends' bikes.

  10. #10
    Senior Member
    Join Date
    Oct 2005
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yeah I did do this myself. but it's something I've done numerous times before I've been riding fixed about 5 years and have done almost all the work on my bikes. But I'm still afraid.

  11. #11
    Banned. teiaperigosa's Avatar
    Join Date
    Oct 2005
    Location
    40th, up in the 30th
    Posts
    1,694
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I would take the lockring and cog off and check...
    hope you greased those threads well

  12. #12
    Senior Member
    Join Date
    Oct 2005
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ok the grease or not to grease argument again. What is the benefit of greasing?

  13. #13
    Frankly, Mr. Shankly absntr's Avatar
    Join Date
    Oct 2002
    Location
    Chicago
    Posts
    3,482
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The curious mind in me is wondering why you're not checking it out right now or seeing if it is indeed play in the cog/lockring instead of waiting for people on the internet to guess...


  14. #14
    Banned. teiaperigosa's Avatar
    Join Date
    Oct 2005
    Location
    40th, up in the 30th
    Posts
    1,694
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Leif-fire-eater
    ok the grease or not to grease argument again. What is the benefit of greasing?
    I've never heard of a 'to grease or not to grease' argument concerning ANY THREADED PARTS ON A BIKE.... and especially hub threads

    GREASE!!!...

    or maybe I'm just buggin'

    edit:...oh the benefits...grease is a lubricant that allows, first of all, you to not be sliding straight metal along metal....you'll be able to get the cog (and lockring)on tighter, you'll be able to get it off easier, and you'll do less damage to the threads

  15. #15
    Senior Member
    Join Date
    Oct 2005
    Posts
    311
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    stuck at work in a building that won't let me bring in a bike. But tonight I'll definitly be ripping into the wheel

  16. #16
    Frankly, Mr. Shankly absntr's Avatar
    Join Date
    Oct 2002
    Location
    Chicago
    Posts
    3,482
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ah, gotcha. Be careful on the way home.

  17. #17
    Senior Member mattface's Avatar
    Join Date
    Sep 2005
    Location
    Montpeculiar, VT
    My Bikes
    Soma Rush, Fuji Cross, Raleigh Technium Mtn Bike, Ross 10 speed with Shimano 600.
    Posts
    3,951
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My guess is the lockring got just a touch loose. Don't stomp hard on it on the way home. If it hasn't stripped yet, removing and retightening the cog and lockring will do the trick. Sounds like it's slipped 3 times, so chances are no damamge yet. Don't apply any back pressure on the way home working that cog back and forth is what will strip it. If you don't have a brake I wouldn't even ride it home.

  18. #18
    nerd hyphy jonb's Avatar
    Join Date
    Jun 2005
    Location
    SF, CA
    My Bikes
    merckx/presto/gitane
    Posts
    833
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Lockring and cog is my vote. Its a little loose and then you pedal off and the torque tightens it back down, then the back pressure from a skid or trackstand loosens it up again.

  19. #19
    Banned. teiaperigosa's Avatar
    Join Date
    Oct 2005
    Location
    40th, up in the 30th
    Posts
    1,694
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mattface
    My guess is the lockring got just a touch loose. Don't stomp hard on it on the way home. If it hasn't stripped yet, removing and retightening the cog and lockring will do the trick. Sounds like it's slipped 3 times, so chances are no damamge yet. Don't apply any back pressure on the way home working that cog back and forth is what will strip it. If you don't have a brake I wouldn't even ride it home.
    I wouldn't ride it at all if you have another way of getting home (ie...walking)...

    I had a loose crank bolt once...rode it to the bike shop to tighten it up (didn't have the tool)...on the way there...the bolt came out and my crank fell off...
    the only thing that really happened was that the bolt stripped, and then I eventually lost it...crank bolts are easy to come by though

    in your case, you really don't wanna do any more damage to anything...if you can...walk it

  20. #20
    Banned.
    Join Date
    Oct 2004
    Posts
    4,418
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Here's a simple rule regarding grease and components:

    Grease ALL metal-to-metal contact.

    Except chains, which should be lubed.

  21. #21
    Lunigma
    Guest
    take everything off, grease, and rotafixa.

  22. #22
    Barbieri Telefonico huhenio's Avatar
    Join Date
    Aug 2005
    Location
    Albuquerque, New Mexico
    My Bikes
    Crappy but operational secondhand Motobecane Messenger
    Posts
    3,522
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Tighten up EVERYTHING .... is not that much!

    Remember all those moving parts that YOU DO NOT HAVE anymore?
    Giving Haircuts Over The Phone

  23. #23
    I am an incurable. delay's Avatar
    Join Date
    Apr 2005
    Location
    Champaign, IL
    My Bikes
    IRO Mark V pro (RIP), Bianchi Giro, Giant Xtc1, Redline Conquest Pro, Kelly Deluxe singlespeed.
    Posts
    993
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I would say, if you have a front brake, use it the whole way home. Try your hardest not to apply any back pressure. That said, several hub thread can strip (this happened to me) allowing some play (about 1/8 of a rotation) without the whole hub stripping. More than likely it starts as a loose lockring that doesn't get the attention it deserves.

  24. #24
    Jonnys ilegitimate Father cavernmech's Avatar
    Join Date
    Apr 2005
    Location
    toronto
    My Bikes
    too many too list
    Posts
    2,994
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by BostonFixed
    Here's a simple rule regarding grease and components:

    Grease ALL metal-to-metal contact.

    Except chains, which should be lubed.
    And square taper b.b. spindles.

  25. #25
    Banned.
    Join Date
    Oct 2004
    Posts
    4,418
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by cavernmech
    And square taper b.b. spindles.
    That's a touchy subject.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •