Tim's great post on his lovely Runner's World illustration inspired me to share the piece Gina and I did for the same issue. Sadly, years of cycling have left me with the stabilizer muscles of an eighty year old. The legs go up and down, but I can't seem to run more than a short bit without the knees locking up. No personal connection to the content here, just a nice time working with the magazine's great Art Director, Kory Kennedy.