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Thread: knocking noise

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  1. knocking noise 
    #1
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    Hey need some help. Whilst I'm riding there's a knocking noise coming from the gear box I thought my chain might be to slack but that seems fine, any ideas on what this could be? also anyone know of any decent bike garages in or close to swindon
     
     

  2. Re: knocking noise 
    #2
    Platinum Member
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    Tight spot, stick it on centre stand/paddock stand and rotate rear wheel, is it same tension throughout the full length of chain? If not it's a tight spot, you can try and work it out with oil, make sure you tension on the tight spot, so you don't over tension the chain.
     
     

  3. Re: knocking noise 
    #3
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    Quote Originally Posted by dex959
    Hey need some help. Whilst I'm riding there's a knocking noise coming from the gear box I thought my chain might be to slack but that seems fine, any ideas on what this could be? also anyone know of any decent bike garages in or close to swindon
    Noise in all the gears or just one/some? (checked your oil level?) noise under load/throttle?
     
     

  4. Re: knocking noise 
    #4
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    Some gears and whilst under load yeah
     
     

  5. Re: knocking noise 
    #5
    Senior Member alanTDM's Avatar
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    Or worn front gearbox sprocket or as above stiff chain link
     
     

  6. Re: knocking noise 
    #6
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    Quote Originally Posted by dex959
    also anyone know of any decent bike garages in or close to swindon
    Bike Treads in Kembrey Park were great when I took my 125 in with (at the time unknown) a leaky seal on my regulator rectifier. 1 hour labour and £40 later I was back on 2 wheels
    They're mainly tyre specialists but the workshop guy just seems to love working on bikes.
     
     

  7. Re: knocking noise 
    #7
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    Worn front sprocket, my old Fazer did the same thing when it needed replacing. I couldn't hear it, but could feel knocking through the left foot peg.
    www.shinybikesyndrome.co.uk - Protection through innovation
     
     

  8. Re: knocking noise 
    #8
    Chatterbox Jon_W's Avatar
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    Sounds like chain to me. Is the gear selection a little vague???
    "there's no aspect, no facet, no moment in life that can't be improved with pizza"

     
     

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