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 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 Stack
GCAB-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