WIND. I was two to three gears lower than normal on my ride to work this afternoon. I have a good hill that I usually pull in second abd third gears on my Shimano Nexus 8 speed. Today I was in first all the way and had to stop two thirds of the way up the hill th get my respiratory and heart rate down. That is a first on my commute. I sit upright to keep weight off my 65 yrar old wrists and hands, and have two panniers, so I'm not exactly streamlined.