Originally Posted by
agenkin
On the other hand, I think that I also noticed that I have become quite a bit slower. It seems that it takes more effort to maintain the same speed that I'm used to on a familiar road, and it takes longer to accelerate from a stop. Is this my psyche messing with me? Has anyone else noticed this? Is this expected?
While there might be a slight increase in aerodynamic drag by going to front panniers, the amount of increase isn't that great, especially during acceleration. Drag is low as slow speeds anyway. I suspect that you are correct in thinking that it is more psychological than physical. I've been using front bags for 30+ years and don't notice any significant difference in speed nor acceleration.