We all know how important legs are in Parkour, There basically everything! So it's important to keep them up to the challenge, and varying your routine is key in the long run. We've all got our favorite leg workouts, but if you have access to a gym this on coming cold season, it couldn't hurt to try these bad boys out. They're workouts that the average traceur usually doesn't engage in but you might be surprised by the results. I myself am a fan of the tire dragging, its just not that easy to find a huge tire sitting around your usual jam location. You could try it out using a band and dragging a training partner instead, both are fun and a good workout.
Check out the other 4 exercises complete with videos in this STACK ARTICLE