Power Cranks

I'm giving credit to my late season ok form on these things. I've been riding the cranks for about five weeks I still can't ride them continuously but I should be by spring time. I have gone on a couple of easy couple hour rides with a few friends and was able to keep up at a moderate pace. I have notice it mostly on the Ice and going up hills. I've been able to go a little deeper and push a big gear for a longer amount of time. I think thats why the single speed has worked so well. I can't wait for spring to really see what these things did for me over winter.