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  • this has got me scratching me 'ead – chainring / sprocket sizes
  • charliemort
    Full Member

    okay now this is thick I know………………

    but how come say a 32 tooth chainring is physically bigger than a 32 tooth sprocket?

    The pitch of the chain is the same on both, so how does it work?

    (all this talk of 11 speed and 42 tooth cassettes got me thinking about this…..)

    Posted 11 years ago
    PaulD
    Free Member

    Troll.

    Posted 11 years ago
    scaredypants
    Full Member

    Cassettes are Whitworth, chainrings are AF, I think

    Posted 11 years ago
    bencooper
    Free Member

    Cassettes aren’t really smaller, they’re just further away.

    Posted 11 years ago
    scaredypants
    Full Member

    ben – does that mean bikes with long chainstays have higher gears ?!

    (no wonder a tandem needs 2 people 😯 )

    Posted 11 years ago
    bencooper
    Free Member

    Yup, and that’s why BMXs are slow.

    Posted 11 years ago
    spooky_b329
    Full Member

    They are the same size…

    Posted 11 years ago
    scaredypants
    Full Member

    BMXs are NOT the same size – I’ve seen one against a real bike and they’re tiny

    Posted 11 years ago
    njee20
    Free Member

    Again though, the BMX could’ve just been further Away.

    Posted 11 years ago
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