Originally Posted by
Da Reef
I doubt most put enough pressure on the crank arm to feel flex. But if you need to justify top of the line components, any reason is good enough. I for sure can't tell the difference between 105 and Red 22 at 200 watts...
105
is in the realm of top line components in this day and age. And sure, nobody is flexing the crank at 200 watts, but when you can top 1000 or 1200 or more sprinting, you can absolutely feel it and hear it when the chain rubs the front DR.