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  1. #1
    Bromptonaut stocksy's Avatar
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    May 2008
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    Stafford, UK
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    Brompton M6L (x2), Specialized Langster 08, Dolan Multicross, Raleigh Twenty
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    Rear hub/lock ring on Langster

    Two days after I bought my Langster, I managed to unscrew the sprocket while resisting the pedals and this popped off the lock ring and stripped the thread off the hub. My LBS replaced the entire rear wheel as a warranty job, but tonight after I was doing a bit of skidding the sprocket has come loose again (second time in 2 weeks).

    I'm going to take it back in to the shop tomorrow, but I just though I'd ask if this was a common problem. Is the hub or sprocket poor quality, or should I have paid a bit more for a Bianchi Pista? Or am I just really unlucky or ham-fisted? I'm not all that heavy (about 70kg/150lb) or powerful so I don't think it's me.

  2. #2
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    Aug 2007
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    i know i had to tighten mine when i first got it

  3. #3
    Senior Member craigmoyer's Avatar
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    Dec 2007
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    Cincinnati, Ohio
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    FrankenBike
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    Even if they tighten the cog and lockring by hand, you will certainly need to tighten the cog and lockring again after some riding.

    I usually ride up a large hill, or rotafix the cog on, then tighten the lockring down as hard as possible...Even after it was tightened down by hand.

  4. #4
    Bromptonaut stocksy's Avatar
    Join Date
    May 2008
    Location
    Stafford, UK
    My Bikes
    Brompton M6L (x2), Specialized Langster 08, Dolan Multicross, Raleigh Twenty
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    Thanks guys, I just hope it's a matter of tightening it up. I'm missing all the nice weather with the bike ending up in the shop all the time, and we don't exactly get too much nice weather here

  5. #5
    Senior Member
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    Dec 2007
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    i had the same issue with mine now i just use red loctite and a super tight lockring

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