TuffStuff CalGym Abdominal Back

The CalGym Abdominal Back CG-5510 allows both abdominal crunches and back extensions conserving precious floor space without sacrificing member results.


Just because your faciity has limited space is no reason to ignore offering clients a great strength program. The Abdominal Back isn't the only piece of CalGym fitness equipment to help you do just that. Legendary for all areas of strength training with amazing results, superior mechanicals and outstanding customer support and service, Tuffstuff's is sure to not disappoint both establishment owners and gym users alike.


  • Large exercise placards provide instruction on proper set up and use.
  • Oversized weight identification stickers offer quick weight selection.
  • Integrated storage compartment on weight stack covers.
  • Dual sided, protective weight shields offer enhanced safety and durability.


The weight stack selector pin on the CalGym strength line is magnetized so that it sticks to the steel weight plates! This prevents the pin from slipping out of the selector shaft during use. Also, each pin is secured to the weight stack with a flexible cable that helps prevent theft and loss. 


  • Quick set pop pin & chrome selector plate allows for multiple pre stretch settings.
  • Oversized seat pad with integrated safety belt offers enhanced support and safety.
  • Thermoplastic rubber foot brace and upholstered foot rolls help secure user in correct position.
  • Internally routed cables and steel pulley covers help limit exposure to moving parts.
  • Large 7 gauge steel cam provides bio-mechanically correct resistance curve through entire range of motion.
  • Welded emergency cam stop ensures safe performance for both exercises.


  • LIFETIME: frames, welds, cams, and weight plates
  • 5-YEAR: bushings, pivot bearings, pulleys and guide rods
  • 1-YEAR: linear bearings, pull-pin components
  • 6-MONTH: finish, cables, upholstery and rubber grips
Two great strength routines in one compact footprint with the Abdominal Back from TuffStuff's Cal Gym line of fitness equipment.
TuffStuff CalGym Abdominal Back Specifications