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swedeee-
FWIW, none of my bikes have cranks the same length. The only ones I actually notice being any different are 155mm. The longest are 175mm and I cannot tell the difference between 175, 172.5 and 167.5
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You’re not wrong there.
Back in 2008, was convinced I have 170mm on the Bianchi Pista, and longed for a 165mm.
Turn out it’s 165mm and it’s just us bullshitting ourselves for no reason.
TooTallTim
edscoble
In tests, scientists concluded that there was no such thing*. The difference between 170 and 172.5 is not only too small to notice, it's also too small to measure reliably in terms of biomechanical efficiency because the noise floor is above the signal.
*Tests between 150mm and 200mm