Home Forums Bike Forum Freewheel cog thickness, whats the correct term (bmx chain needs a thinner cog)

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  • Freewheel cog thickness, whats the correct term (bmx chain needs a thinner cog)
  • hora
    Free Member

    The teeth of the cog are too thick for the chain to sit on. Chain is BMX.

    Whats the technical term for the right chain? Needs a cog with thinner-teeth.

    nbt
    Full Member

    Chains are 3/32 or 1/8 (i.e. 4/32). 1/8 is "bmx", 3/32 is "MTB" or "Road".

    If the chain won't go on the cog, you probably have a 3/32 chain…

    http://www.sheldonbrown.com/gloss_ch.html

    hora
    Free Member

    Ta nbt. Its annoying the wheel came with a 18T cog and my legs are burning out from all that furious spinning 😐

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