• I haven't, but there are already marks on the chainstay from the 'awesome power' I transmitted through the 50t so I assumed it wouldn't be a good idea. I will give it a go and report back...

  • there are already marks on the chainstay from the 'awesome power' I transmit

    That was my next question - how much does your BB spindle flex in reaction to chain tension? Maybe time to upgrade to a crank with a fat axle :)

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