Since the roads are full of potholes, I do my riding to the gym, or to the shops on my shopper bike with man-basket. Both are excellent warm ups for well, in the second case, nothing really. Since 15 years ago, I'm quite accustomed to being overtaken by the ladies, some of who are powerhouses. But I do not like being overtaken by fellas. I got passed by two blokes today on my way to the gym down the cyclepath.
It is hard to change gear with clenched fists . . . .