
Two core motions, one guided, high-quality machine—designed to simplify your workout with comfort and consistency.
Ever notice how floor crunches or free-weight back extensions can feel awkward—or inconsistent from rep to rep? The Pro Dual Ab & Back (DABBSF) machine offers a more structured alternative. From a single-seated position, you can toggle between abdominal crunches and lower-back extensions by shifting your motion path—no benches to reposition, no guesswork about form. Each setup supports better alignment and makes core training both focused and comfortable.
With thoughtful engineering and commercial-grade quality, this machine helps you stay governed in your movement and consistent in your progress, whether you're outfitting a home gym or working with paying members.
Dual-action oversized 9″ roller pad Easily switches quality alignment from crunch to extension, guiding proper motion without complicated adjustments.
Gas-assisted, five-position seat Adjust your pivot point comfortably, so the machine matches your torso angle for more effective reps
Leg pad with six height settings A leg and foot brace that accommodates a wide range of users—keeping your base stable for every motion
Counterbalanced resistance arm with 14 angles Offers a smooth, natural-feeling arc from start to finish—tailored to your body mechanics
210 lb weight stack (optional 310 lb upgrade) Allows for progressive resistance without changing plates mid-workout
Modern curved, powder-coated frame Elegant styling that’s easy to clean, with continuous-weld framing built for modular gym systems
Built for durability in busy environments Sealed industrial bearings, fiberglass-reinforced pulleys, aircraft-tensile cable, and DuraFirm padding ensure long life under heavy use
The DABBSF is intuitive: just sit, adjust the seat and leg pad as needed, select your cam angle, and begin. The oversized 9″ roller pad supports your torso comfortably while the machine’s biomechanics keep your spine aligned throughout both crunch and back-extension motion paths. Labels and pin stops are clearly visible—so even first-time users feel confident without assistance. And since everything is within easy reach while seated, transitioning between movements or changing settings is fast and easy, yet the machine stays grounded and stable throughout your workout.
DABBSF core motion machine with dual-direction pivot arm
Fully adjustable roller pad and leg/bracing roller
210 lb selectorized weight stack (310 lb upgrade available)
Illustrated instructional placard
Factory-assembled welded frame, cable path, pulley system
Assembly guide, tools, and hardware
Model: DABBSF (Pro Dual Ab Crunch & Back Extension)
Assembled footprint: about 48" L × 48" W × 62" H; weight approx. 476 lb
Pivot pad: 9" diameter, adjustable for both exercise modes (roller pad)
Seat adjustments: 5 gas-assisted settings; leg pad: 6 positions; cam arm: 14 starting angles
Weight stack: 210 lb (includes upgrade to 310 lb as option)
Frame & hardware: Continuous-weld 11-gauge tubular steel; aircraft-rated 5.5 mm cable; nylon pulleys with sealed bearings; DuraFirm upholstery
Q: Does it use plates? Or just the weight stack?
It uses a selectorized weight stack (not plate-loaded). Standard 210 lb stack included. A 310 lb upgrade is available.
Q: Can multiple users adjust?
Yes—six seat/leg positions and fourteen cam angles make fit fast for a wide range of body types. No tools needed during use.
Q: Do I have to reposition to switch between ab and back?
No. You stay seated throughout—just change the movement direction and the machine adapts accordingly.
Q: Is it suitable for a home gym?
Absolutely. Though rated for commercial settings, its 48" square footprint and silent, enclosed stack make it a good fit even in smaller personal gyms.
Q: Is it durable enough for daily club use?
Yes—this machine uses industrial-grade components like sealed bearings, thick welding, cable-rated pulls, and tear-resistant padding. It carries a full commercial warranty
Lifetime: Frame & Welds
Lifetime: Pulleys, Bushings, Bearings, Hardware, Plates, Guide Rods
Lifetime: Cables, Upholstery, Grips (Normal Wear)
Lifetime: Frame & Welds
3 Years: Pulleys, Bushings, Bearings, Hardware, Plates, Guide Rods
1 Year: Cables, Upholstery, Grips (Normal Wear)
Free Shipping: We offer free shipping on all orders.
Delivery Area: We currently ship within America.
Processing Time: Orders are processed within 1-3 business days, Monday to Friday.
Cut-off Time: Orders placed before 5pm (GMT+06:00) Central Standard Time will be processed the same day; those placed after will be processed the next business day.
No Shipping Days: Orders are not processed on weekends or public holidays.
Estimated Delivery: Orders typically arrive within 1-7 business days (Monday-Friday) after processing, depending on the destination.
For Products ordered under 150lbs
Delivered to your doorstep or driveway
Transit time: typically 1–7 business days
Tracking number provided
For large/heavy items (150+ lbs)
Delivered curbside with a liftgate
Appointment and adult signature required
Products are not brought inside or upstairs
At Primal Fitness, our mission is simple: provide individuals and businesses with dependable equipment and wellness essentials that support training, recovery, and performance. Whether you’re building a professional training facility or creating a home setup, we deliver products that bring lasting value.
We partner directly with leading brands to ensure every product we sell is authentic, covered under the manufacturer’s warranty, and backed by our support team.
From compact home gyms to full-scale training centers, from personal saunas to professional-grade cold plunge systems, our catalog serves both residential and commercial clients.
We provide multiple payment options so you can choose what works best for you:
Credit Cards: Visa, MasterCard, American Express, Discover, Diners Club
Debit Cards
Google Pay & Apple Pay
Shop Pay & Shop Pay Installments
Venmo
PayPal
Every transaction is processed securely, ensuring your information is always protected.
Our team is here to provide clear answers and reliable service throughout your experience with us. From questions before purchase to post-order support, you can reach us directly by phone or email:
Phone: (615) 568-8943
Email: sales@primal-fitness.shop
Two core motions, one guided, high-quality machine—designed to simplify your workout with comfort and consistency.
Ever notice how floor crunches or free-weight back extensions can feel awkward—or inconsistent from rep to rep? The Pro Dual Ab & Back (DABBSF) machine offers a more structured alternative. From a single-seated position, you can toggle between abdominal crunches and lower-back extensions by shifting your motion path—no benches to reposition, no guesswork about form. Each setup supports better alignment and makes core training both focused and comfortable.
With thoughtful engineering and commercial-grade quality, this machine helps you stay governed in your movement and consistent in your progress, whether you're outfitting a home gym or working with paying members.
Dual-action oversized 9″ roller pad Easily switches quality alignment from crunch to extension, guiding proper motion without complicated adjustments.
Gas-assisted, five-position seat Adjust your pivot point comfortably, so the machine matches your torso angle for more effective reps
Leg pad with six height settings A leg and foot brace that accommodates a wide range of users—keeping your base stable for every motion
Counterbalanced resistance arm with 14 angles Offers a smooth, natural-feeling arc from start to finish—tailored to your body mechanics
210 lb weight stack (optional 310 lb upgrade) Allows for progressive resistance without changing plates mid-workout
Modern curved, powder-coated frame Elegant styling that’s easy to clean, with continuous-weld framing built for modular gym systems
Built for durability in busy environments Sealed industrial bearings, fiberglass-reinforced pulleys, aircraft-tensile cable, and DuraFirm padding ensure long life under heavy use
The DABBSF is intuitive: just sit, adjust the seat and leg pad as needed, select your cam angle, and begin. The oversized 9″ roller pad supports your torso comfortably while the machine’s biomechanics keep your spine aligned throughout both crunch and back-extension motion paths. Labels and pin stops are clearly visible—so even first-time users feel confident without assistance. And since everything is within easy reach while seated, transitioning between movements or changing settings is fast and easy, yet the machine stays grounded and stable throughout your workout.
DABBSF core motion machine with dual-direction pivot arm
Fully adjustable roller pad and leg/bracing roller
210 lb selectorized weight stack (310 lb upgrade available)
Illustrated instructional placard
Factory-assembled welded frame, cable path, pulley system
Assembly guide, tools, and hardware
Model: DABBSF (Pro Dual Ab Crunch & Back Extension)
Assembled footprint: about 48" L × 48" W × 62" H; weight approx. 476 lb
Pivot pad: 9" diameter, adjustable for both exercise modes (roller pad)
Seat adjustments: 5 gas-assisted settings; leg pad: 6 positions; cam arm: 14 starting angles
Weight stack: 210 lb (includes upgrade to 310 lb as option)
Frame & hardware: Continuous-weld 11-gauge tubular steel; aircraft-rated 5.5 mm cable; nylon pulleys with sealed bearings; DuraFirm upholstery
Q: Does it use plates? Or just the weight stack?
It uses a selectorized weight stack (not plate-loaded). Standard 210 lb stack included. A 310 lb upgrade is available.
Q: Can multiple users adjust?
Yes—six seat/leg positions and fourteen cam angles make fit fast for a wide range of body types. No tools needed during use.
Q: Do I have to reposition to switch between ab and back?
No. You stay seated throughout—just change the movement direction and the machine adapts accordingly.
Q: Is it suitable for a home gym?
Absolutely. Though rated for commercial settings, its 48" square footprint and silent, enclosed stack make it a good fit even in smaller personal gyms.
Q: Is it durable enough for daily club use?
Yes—this machine uses industrial-grade components like sealed bearings, thick welding, cable-rated pulls, and tear-resistant padding. It carries a full commercial warranty
Lifetime: Frame & Welds
Lifetime: Pulleys, Bushings, Bearings, Hardware, Plates, Guide Rods
Lifetime: Cables, Upholstery, Grips (Normal Wear)
Lifetime: Frame & Welds
3 Years: Pulleys, Bushings, Bearings, Hardware, Plates, Guide Rods
1 Year: Cables, Upholstery, Grips (Normal Wear)
Free Shipping: We offer free shipping on all orders.
Delivery Area: We currently ship within America.
Processing Time: Orders are processed within 1-3 business days, Monday to Friday.
Cut-off Time: Orders placed before 5pm (GMT+06:00) Central Standard Time will be processed the same day; those placed after will be processed the next business day.
No Shipping Days: Orders are not processed on weekends or public holidays.
Estimated Delivery: Orders typically arrive within 1-7 business days (Monday-Friday) after processing, depending on the destination.
For Products ordered under 150lbs
Delivered to your doorstep or driveway
Transit time: typically 1–7 business days
Tracking number provided
For large/heavy items (150+ lbs)
Delivered curbside with a liftgate
Appointment and adult signature required
Products are not brought inside or upstairs
At Primal Fitness, our mission is simple: provide individuals and businesses with dependable equipment and wellness essentials that support training, recovery, and performance. Whether you’re building a professional training facility or creating a home setup, we deliver products that bring lasting value.
We partner directly with leading brands to ensure every product we sell is authentic, covered under the manufacturer’s warranty, and backed by our support team.
From compact home gyms to full-scale training centers, from personal saunas to professional-grade cold plunge systems, our catalog serves both residential and commercial clients.
We provide multiple payment options so you can choose what works best for you:
Credit Cards: Visa, MasterCard, American Express, Discover, Diners Club
Debit Cards
Google Pay & Apple Pay
Shop Pay & Shop Pay Installments
Venmo
PayPal
Every transaction is processed securely, ensuring your information is always protected.
Our team is here to provide clear answers and reliable service throughout your experience with us. From questions before purchase to post-order support, you can reach us directly by phone or email:
Phone: (615) 568-8943
Email: sales@primal-fitness.shop