Quote Originally Posted by tulip View Post
A backpack will really fatigue me, so I always use panniers on a rack. Why carry the extra weight when your bike can carry it for you? Plus, when the load is on the bike and not on your back, the center of gravity is lower and the bike is easier to control.
I was so happy when I put a rack on my bike and got rid of the backpack. I would make my back all hot and sweaty.

Great job on commuting.