After a century on fixed gear I think I will change 170 to 165 to reduce hip angle at top of stroke. I'm only 5'5" with short legs for that height. Of course easy to get 165 cranks for the fixed gear bike. If that works out I may change cranks on my road bikes. Was wondering if any short riders here are using cranks shorter than standard road 170mm, what are they using, and do they notice a difference with reduced hip angle?