National Barmetrixx Xtreme Association (N.B.X.A.) presents the 6th Annual N.B.X.A World Championship competition. Sponsored by Pushing Weight. http://www.pushingweight.com
Barmetrixx is a form of gymnastics, isometrics and calisthenics done with tricks. The number of reps done with a mix of the tricks is what makes up Barmetrixx.
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