Most of us are spending a good amount of time on our Indoor trainers these days which is a great time to think about your pedal stroke efficiency.
My Favorite drill is called the box drill. It works like this:
30 sec focus on pulling your feet back (shoe scraper/getting dog poop off your shoe) , 30 sec focus on Knees up, 30 sec focus on feet forward and 30 sec focus on knees down.
What is your favorite pedal stroke drill?