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My fixies ill

Discussion in 'Fixed Gear and Single Speed' started by RedBike, 28 Feb 2008.

  1. RedBike

    RedBike New Member

    Location:
    Beside the road
    The chain on my fixie keeps coming off.

    It's been fine for months but just recently it keeps jumping off whenever I try to slow the bike via the pedals.

    There's plenty of tension in the chain (probably too much) and the chainlines about as perfect as i'm going to get it.

    Any ideas?
     
  2. domtyler

    domtyler Über Member

    How old (how many miles) is the chain?
     
  3. andygates

    andygates New Member

    And is your chainring or sprocket worn? Between that and the chain and Something Moving That Shouldn't, that's all that *can* go wrong :blush:
     
  4. Twenty Inch

    Twenty Inch New Member

    Location:
    Behind a desk
    I'm having the same problem with my roadbike - any pressure on the chain and it's likely to come off.

    I think it's because the chainring is oscillating slightly from side to side - just enough to throw the chain if I put pressure on when it's offline. It's flippin' dangerous - specially up hill.

    Have a look at the chain rings.
     
  5. Landslide

    Landslide Rare Migrant

    Location:
    Called to the bar
    I had this problem and in my case the chainring bolts had come loose, resulting in the chainring flopping about.
     
  6. OP
    OP
    RedBike

    RedBike New Member

    Location:
    Beside the road
    I've buckled the chainring. I can't believe I didn't notice!
    Oh well new ring ordered and hopefully problem solved.
     
  7. Alan Frame

    Alan Frame Gnu

    Location:
    Lost In Space
    I wonder what those who advocate having no brakes on their fixed gear bike would do when their chain unshipped ?
     
  8. dudi

    dudi Senior Member

    Location:
    Ipswich, Suffolk
    crash i suspect...

    i could never leave home without a rim brake...
     
  9. Twenty Inch

    Twenty Inch New Member

    Location:
    Behind a desk
    Do what we did when we were kids - jam your foot down and wreck your shoes. Only this time without the bollocking from Mum.
     
  10. OP
    OP
    RedBike

    RedBike New Member

    Location:
    Beside the road
    Probably the same as I did. Scream

    I was very lucky that the chain didn't snag anywhere and lock the rear wheel.
     
  11. ASC1951

    ASC1951 Guru

    Location:
    Yorkshire
    I had rear wheel lock with my first adapt-a-knackered-roadbike fixie. I was tanking down the chevrons in the middle of the road, to turn right at the lights. Oh yes, I screamed.
     
  12. peejay78

    peejay78 Well-Known Member

    soil their pants, and their nice new skinny hipster jeans.
     
  13. Zoiders

    Zoiders New Member

    Location:
    Ice Station Zebra
    I would wear them but all this cycling means that my legs dont fit in the skinny jeans for my waist size anymore