Nah, I use 167.5mm on my fixed and 175mm on my MTB too.
The 167.5mm are easier to spin with my dodgey knee (I can spin at a good speed without excessive movement) and the 175mm give me more leverage for sudden maneuvers at a lower cadence.
Although tbh I should probably be using 170mm on fixed.
And I'm 6'1"!
Nah, I use 167.5mm on my fixed and 175mm on my MTB too.
The 167.5mm are easier to spin with my dodgey knee (I can spin at a good speed without excessive movement) and the 175mm give me more leverage for sudden maneuvers at a lower cadence.
Although tbh I should probably be using 170mm on fixed.
And I'm 6'1"!