I know it's all a bit academic now VB, but why did you go for 175mm cranks?
Power.
When I had my cycle fit we played with crank length, and there were 2 benefits from the 175mm for me. 1 was that my knees were kept in line a lot more, and 2 was that I was pushing a lot more powerfully (possibly due to #1).
So for me, 175mm just proved to be the right length. The 2nd cyclefit I had reflected this, so my new bike also has 175mm.
Power.
When I had my cycle fit we played with crank length, and there were 2 benefits from the 175mm for me. 1 was that my knees were kept in line a lot more, and 2 was that I was pushing a lot more powerfully (possibly due to #1).
So for me, 175mm just proved to be the right length. The 2nd cyclefit I had reflected this, so my new bike also has 175mm.