'Watch Fitness Quest 10 Personal Trainer Jeff King attempt \"The Tire Flip Challenge.\" The Tire Flip Challenge is to flip a 420 pound tire as many times as possible for 5 minutes. This is a true test of strength and endurance. Film yourself and lets see who is the BEST!'
Tags: fitness , Workout , challenge , core , body , 10 , quest , king , total , ryan , Jeff , flip , tire , lower , upper , Todd , durkin , Burgess
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