Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    ... efarrar's Avatar
    Join Date
    Aug 2005
    Location
    Chicago, IL
    My Bikes
    Schwinn World-Sport Fixie
    Posts
    483
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    I just popped my lockring!?

    My flip-flop hub (and the fg-conversion it gave birth to) had just turned 2 months old yesterday. I was coming to a stop last night when I felt got that disconcerting feeling of coasting on a bike that is expressly not intended to do so. When I stopped I saw the lockring was popped off and there was a 15cm corkscrew of aluminum attached to it. I was heartbroken.
    1) Was it something I did? Granted I just now learned to skid after buying a new front rim (can now hand-brake accurately) and a set of armadillo-no-grip-treads, and granted it was a crappy Suzue hub... But did I install my cog/ring improperly by just screwing them on "finger-tight" then letting my constant starting and stopping tighten it? or should I have used a chainwhip and a lockring tool to tighten them? I thought these were only for taking it off...Should I have used loc-tite even though I have a proper track hub? wouldn't that mean I'm stuck with one cog forever?

    2) What should I do to fix it? just red loctite the sucker? Get the wheel rebuilt at yojimbo's? I still haven't used the flip side of my flip-flop hub..isn't there some kind of lockring for that side? Should I weld it? I don't feel too safe with _just_ loc-tite.

  2. #2
    Cornucopia of Awesomeness baxtefer's Avatar
    Join Date
    Oct 2004
    Location
    not where i used to be
    Posts
    4,847
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    you put your lockring on finger tight? um, don't do that. This is the reason why lockring spanners exist.
    your hub is hosed.
    JB weld is now your friend.

  3. #3
    ... efarrar's Avatar
    Join Date
    Aug 2005
    Location
    Chicago, IL
    My Bikes
    Schwinn World-Sport Fixie
    Posts
    483
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I wouldn't say finger tight, maybe, as tight as I could possibly get it short of using the proper tools or maybe a hammer, but yeah I will definitely have to buy one of those.

  4. #4
    Patrick Barber weed eater's Avatar
    Join Date
    Apr 2005
    Location
    Portland, Oregon
    Posts
    888
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    JBWeld the cog and lockring to your fixed side, and call it a "fixed fixed" hub. that's what I did (with my crappy Suzue hub) and it works fine.

  5. #5
    Senior Member DiegoFrogs's Avatar
    Join Date
    Feb 2005
    Location
    Lund, Sweden
    My Bikes
    Mostly old stuff.
    Posts
    1,896
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    The amount of torque transferred to the cog is the torque applied at the crank DIVIDED BY the gain ratio.

    For instance, I ride 40x16 (it's mountain-galore around here... and I'm a bookworm), a 2.5 gain ratio. 140 lbs (my weight... gives you an idea of possible operational loading) applied to my 170 mm cranks transfers 374.8 in-lbs of torque. that only requires 32 pounds of force on a 12" chainwhip.

    You see where I'm headed with this? you can develop a LOT more torque with the same force if you just use a chainwhip. this is good, because you DON'T want to exceed this while back-pedalling.

Posting Permissions

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