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Body-Solid PRO-Select Ab & Back Machine - GCAB-STK


Need to Build Your Core and Strengthen Your Back? Try the Body-Solid PRO-Select Ab & Back Machine - GCAB-STK!
The Body-Solid PRO-Select Ab & Back Machine - GCAB-STK is your solution for total trunk training. This unique ab back machine combines two essential core-building exercises into one compact station. Whether you're looking to sculpt your abs or improve spinal support and posture, this body solid ab machine delivers targeted resistance for both your abdominal and lower back muscles using a weight-assisted design. Featuring commercial-grade construction, a 20-position adjustable cam, and thick DuraFirm™ pads, this best ab machine ensures comfort, adjustability, and durability for home and commercial users alike.

WHAT MAKES THE BODY-SOLID GCAB-STK DIFFERENT?
Dual Function Core Trainer
- This Body-Solid PRO-Select Ab & Back Machine - GCAB-STK is a dual-action unit designed for ab crunches and back extensions, delivering unmatched value for users targeting the entire core.
- The 20-position adjustable cam helps you dial in the perfect range of motion whether you're focused on back rehab or intense ab sculpting on this ab back machine.
Commercial Quality in a Compact Frame
- Built with a heavy-duty 2” x 4” steel frame and oversized Durafirm pads, the GCAB provides both stability and comfort during high-volume ab and back workouts.
- Whether you’re outfitting a home gym or a facility, this body solid machine is made to handle repeated use with minimal maintenance.
Adjusts to Fit Any User
- The 7-position leg brace and 30° angled motion path allow all users to experience the full benefits of this body solid ab machine regardless of height or flexibility.
- The pop-pin adjustments allow for seamless switching between exercises, whether you're doing ab crunch machine work or using it as a weighted dip machine alternative for the trunk.
Why It's One of the Best Ab Machines Available
- This ab crunch machine gives controlled, biomechanically-correct movement to maximize muscle engagement.
- Ideal for both strength development and conditioning, the GCAB stands out as a go-to best ab machine for gyms, PT clinics, and performance centers.
GALLERY

Ab Crunch Start
Shows starting position for crunches on the PRO-Select machine.

Ab Crunch – Full Range
Illustrates full movement for abdominal muscle activation.

Lower Back Extension
Designed to engage and strengthen the lower back muscles.
DETAILS
- Product Name: Body-Solid PRO-Select Ab & Back Machine - GCAB-STK
- Main Frame: 2” x 4” heavy-gauge steel tubing
- Seat & Pads: Ultra-thick DuraFirm™ upholstery for added comfort
- Cam Adjustment: 20-position adjustable cam for customized ROM
- Foot Brace: 7-position adjustable brace accommodates all sizes
- Design Angle: Positioned at 30° for optimal biomechanics
- Ideal For: Commercial gyms, home gyms, PT clinics, and rehab centers
- Workout Stations: Ab crunch and back extension on one body solid machine
- Assembled Weight: 399 lb / 180.99 kg
- Assembled Dimensions: 55” L x 50” W x 71” H
- Complete your workout with some free weights along with this Machine!

BUILD A STRONGER, HEALTHIER CORE WITH GCAB-STK
Invest in the Body-Solid PRO-Select Ab & Back Machine - GCAB-STK if you're serious about core strength, spinal stability, and functional movement. With smooth, adjustable resistance, rock-solid durability, and a smart dual-function design, it earns its reputation as the best ab machine in its class. Whether you're using it as a gcab, ab crunch machine, or body solid ab machine, it’s a foundational piece in any facility focused on results.
![]() Product Data Sheet PDF |
![]() Assembly Manual PDF |