Drivechain help

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  • Drivechain help
  • Blackflag
    Member

    On my last couple of rides ive noticed that i get a very load buzz / whirrrr sound (like something is rubbing on the chain but it isnt) but only when i’m pushing hard like on a climb.

    My mate claims my chain seems to be sticking to the bottom of my chainring rather than coming away in a straight line from the bottom of the ring. Not full on chainsuck but similar. Ive cleaned both chain and ring fully and re-lubed but this still happens.

    As its a constant noise rather than off/on im ruling out a bent tooth etc.

    Any ideas cos im now lost?

    Cheers

    I’m assuming that you have a single narrow-wide style chainring? Is it new?

    I had this problem for the first 100 or so miles with one of my chainrings, I think it was a superstar components one, it went away with a bit of use/ware

    Premier Icon Yak
    Subscriber

    Or an old worn chainring. Especially n/w chainrings.

    nairnster
    Member

    Does it happen in every gear? On every climb or just on really hard efforts?

    Nothing else flexing and rubbing as you apply power?

    Blackflag
    Member

    Hi,

    yes its a narrow / wide single ring. On one to be exact. Had it about a year and a half but to ridden as often as many on here. But i have been hitting the grittier parts of the peaks a fair bit recently. So do you think its a worn chainring?

    Blackflag
    Member

    Yes its in every gear and pretty much as soon as i start climbing anything nairnster

    Premier Icon Yak
    Subscriber

    Intermediate use for a year and a half will wear a narrow/wide to the point of noise I reckon.

    malv173
    Member

    I’m with Yak on this. Your chainring is worn. Experienced this myself very recently after building a new bike up. Changed cassette and chain but not chainring. It was doing exactly what yours is. New chainring solved the problem.

    Blackflag
    Member

    On the strength of the singletrack hive mind i have just ordered a new absolute black narrow wide oval chainring. Thanks everyone.

    Premier Icon dangeourbrain
    Subscriber

    Had it about a year and a half but to ridden as often as many on here.

    If i read that right, it’s now less used than when new?

    markshires
    Member

    Have a quick check, that the chain is the right way around the tab on the rear mech.

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