Originally Posted by
RollCNY
I have always unclipped the left for one simple reason: there is always road to the left. If I am riding as far right in the lane as practicable, there may be a storm grate to my right, or no shoulder, or an extreme camber to the shoulder. The road is always in the same place on the left.
That's true, didn't even think of that.
For me I think it also has to do with the fact that I rode horses before I rode bikes. It is customary to mount/dismount on the left side of a horse.