Chain size for child's MTB derrailleur

dapperdan
dapperdan Posts: 9
in MTB workshop & tech
I put a 1/8 x 1/2 single speed chain on my daughter's Hoy Bonaly 20" MTB with a six speed derrailleur. It's noisy. I suspect it's too wide for the cassette. Will the chain damage the cassette?
Thanks

Comments

  • whyamihere
    whyamihere Posts: 7,702
    It may not damage anything, but it's really not designed for the application. It will rub all over the place and won't shift properly. Why did you fit it?
  • The Rookie
    The Rookie Posts: 27,812
    Should be using a 3/32 x 1/2 inch chain, it will be rubbing the next larger gear and possible the rear mech side plates.

    It's a freewheel not a cassette fitted.

    For the price of a chain, just get the right one!
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • dapperdan
    dapperdan Posts: 9
    I fitted it because I had it! It was only when it was noisy that I realised it might be the wrong size. Thanks for the guidance.

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