Major Fitness Weight Stack Pin ExtenderNeed more weight for your toughest sets? The Major Fitness Weight Stack Pin Extender lets you go beyond the default weight stack limitadding up to 130 lbs of extra resistance using standard weight plates. Built for serious lifters and progressive overload, this smart add on gives you more training capacity when it counts. Note: Only fits B52PRO F22PRO B52EVO. If your equipment is the B52 Standard or F22 Standard model, and youve already purchased our