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  • Again, citation needed. I've seen that asserted for more than 40 years personally, and nearly 80 years if you count the old blokes telling my teenaged dad that any gear over 84" meant certain knee death. I've never seen any proper evidence that using high gears causes knee injury.

  • I've never seen any proper evidence

    I'm not taking a position on this currently.

    However: have you seen any attempts to gather evidence?

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