Current Projects chat and miscellany

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gbj_tester in reply to @tbc

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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Kidneys in reply to @gbj_tester

Surely it's rear that flexes, not the spindle?

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gbj_tester in reply to @Kidneys

Surely it's rear that flexes, not the spindle?

Both flex, but my money is on spindle flex being the major contributor to closing the gap between chainring and chainstay. Given the geometry, the chainring moves about 10 times as far as the end of the spindle when it bends.
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tbc in reply to @Kidneys

Your rear flexes

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