Body-Solid GCAB-STK Pro Select Ab & Back Machine Dual-function, selectorized core trainer with 20-position ROM control and light-commercial build Train abdominal crunches and back extensions on one compact, selectorized station. The Body-Solid GCAB-STK uses a full-range cam with an easy pop-pin to give you 20 precise start positions for dialed-in range of motion and control. A 7-position, fully upholstered leg/foot brace locks in your setup for targeted isolation, while the 30° working angle supports natural, biomechanically correct movement. Ultra-thick DuraFirm™ pads, a 2" × 4" steel mainframe, and smooth commercial hardware make this an ideal pick for home gyms and light-commercial facilities. Body-Solid GCAB-STK Ab & Back Machine Overview Body-Solid GCAB-STK Highlights Dual Function: Trains both abdominals and lower back on one selectorized station 20-Position Cam: Pop-pin ROM adjustments for fine-tuned start angles and progression 30° Body Angle: Promotes precise, joint-friendly mechanics through every rep 7-Position Leg/Foot Brace: Proper setup for users of all sizes; locks in for strict form DuraFirm™ Upholstery: Ultra-thick pads deliver comfort and stability under load Commercial Frame: 2" × 4" steel mainframe for long-term durability Overall Footprint: 55" L × 50" W × 71" H Body-Solid GCAB-STK Key Features Dual-Function Core Training Perform weighted ab crunches and back extensions without changing stations. 20-Position Adjustable Cam Quick pop-pin lets you set precise start/stop points for mobility, comfort, and progressive overload. Ergonomic 30° Working Angle Supports a natural arc for efficient core activation and reduced strain. 7-Position Leg/Foot Brace Fully upholstered brace stabilizes your setup to isolate abs and spinal erectors. DuraFirm™ Pads Ultra-thick, tear-resistant cushioning for comfort during heavy or high-rep sets. Light-Commercial Construction Heavy-duty 2" × 4" steel mainframe with a durable powder-coat finish. Body-Solid GCAB-STK Specifications Variants / Model Options GCAB-STK — 210 lb StackGCAB-STK/3 — 310 lb Stack Category Ab & Back Machine (Selectorized) Resistance (Selectorized) 210 lb Stack: 20 × 10 lb plates plus 10 lb top plate & selector rod 310 lb Stack: 20 × 15 lb plates plus 10 lb top plate & selector rod Adjustments 20-position cam; 7-position leg/foot brace Upholstery Ultra-thick DuraFirm™ pads Frame 2" × 4" steel mainframe; powder-coat finish Assembled Dimensions 55" L × 50" W × 71" H Assembled Weight 399 lb Shipping Package 53.5" L × 27.7" W × 6.0" H • 5.15 ft³ Intended Use Home Gym & Light Commercial
