Hey. 165 mm is LONG! What are you talking about. Well they're long for me anyway!

Well I used to ride around on 110 mm cranks on a kids bike. I kid you not! and they were OK actually. I used to get up some BIG hills with then no trouble. The trick is you use a lower gear than you normally would but it's easy to spin at a higher cadence. One issue to consider is that with the shorter cranks you probably aren't set up properly and an educated guess would be that your too far infront of KOPS with the shorter cranks to feel right. One big advantage or realy short cranks is that you can pedal out of the saddle forever and feel OK.

Regards, Anthony