If you have :10 of free time, LET’S GO! This week our challenge is a simple yet intense :10 all out sprint on an Assault Fitness Assault Bike! This is a short challenge that will favor the big the strong and the powerful! The important part is the set up of the bike, ensuring that you get a count down for the time domain so the calorie measurement is accurate. Anyone can join the challenge, you just have to tag us in your video and use the hashtag #fnxsprintchallenge. Grab some friends, a bike, your phone and let’s see who will wear the crown for this weeks challenge!