Originally Posted by
Iride01
At the extreme risk of starting a big fight, I'll suggest you might take a look at getting shorter crank arms. 165mm are what I use and they allow me to get more aero comfortably. Possibly the shorter cranks will not require as much range of motion for your knee.
Yes, shorter crank arms reduce range of motion at the knee. I put 155mm arms on my wife's bike when she started having knee problems.