Description

TRUE Force Series Dual SD-1004 Ab Crunch/Back Strength Machine

The TRUE Force SD-1004 delivers two essential movements—abdominal crunches and low back extensions—in one space-efficient unit. With smooth transitions, ergonomic comfort, and sleek commercial styling, it’s the ideal solution for fitness centers, multifamily gyms, and wellness facilities looking to maximize floor space without compromising functionality.


Key Features

  • Dual-Function Design
    Quickly switch between ab crunch and back extension exercises with a user-friendly adjustment disk—no need to change machines or reposition.

  • 4-Position Range of Motion Adjustment
    Allows users to personalize movement based on flexibility, strength level, or comfort.

  • Overhead Grips & Rolling Back Pad
    Pre-stretches the abdominals for a more effective crunch and provides stable support for full-range back extensions.

  • Integrated Lumbar Support
    Promotes proper anatomical alignment and reduces lower-back strain during exercise.

  • Oversized Foot Platform
    Rubber-coated and angled for security, supporting proper posture throughout each movement.


Design & Finish

  • Powder Coat Finish: Matte Black

  • Seat Vinyl: Black (standard)

  • Frame Color Options: Custom colors available

Specifications
Specifications data
Footprint: 52.75" L x 47.5" W x 57" H (134 cm x 121 cm x 145 cm)

Weight Stack: Standard – 175 lbs, Heavy – 255 lbs
(Includes 15 lb top plate + 10 lb increments)

Machine Weight:

Standard: 484 lbs (219 kg)

Heavy: 564 lbs (256 kg)
Warranty
Warranty data
Frame: 10 Years
Parts: 5 Years
Cables and Linear Bearings: 1 Year
Labor: 1 Year
Wear Items: 90 Days
FAQs
Frequently asked question

Is the True Fitness Force SD-1004 worth buying for a commercial gym?

Yes, the SD-1004 is an excellent investment for commercial facilities. It combines two high-demand movements—ab crunches and low back extensions—into one compact unit, saving valuable floor space while serving more members. Its commercial-grade build, ergonomic design, and sleek styling make it a durable, cost-effective choice for fitness centers, hotel gyms, multifamily properties, and wellness facilities looking to maximize equipment value.

What warranty comes with the True Fitness Force SD-1004?

True Fitness is known for offering strong commercial-grade warranties on their Force Series equipment. Warranty terms can vary by seller and installation type. We recommend contacting us directly or reviewing the product documentation for the most current warranty details covering the frame, parts, and upholstery so you can purchase with full confidence.

What muscle groups does the SD-1004 target?

The SD-1004 targets two key core muscle groups. The ab crunch function engages the rectus abdominis and obliques, while the low back extension movement strengthens the erector spinae and lumbar muscles. Together, these exercises build a balanced, strong core, which supports posture, reduces injury risk, and improves overall functional fitness for users of all levels.

How much floor space does the True Force SD-1004 require?

The SD-1004 is designed to be space-efficient, making it ideal for facilities where floor space is limited. By combining two machines into one footprint, it effectively halves the space typically needed for separate ab and back units. For exact dimensions, refer to the product specification sheet or contact us for assistance planning your gym layout.

Is the True Fitness Force SD-1004 suitable for beginners?

Yes, the SD-1004 is suitable for users of all fitness levels, including beginners. The machine features ergonomic padding and adjustable positioning to ensure proper form and comfort. The guided movement pattern helps beginners perform ab crunches and back extensions safely, reducing injury risk and making it easy to learn correct technique from the very first session.

How difficult is it to transition between the ab crunch and back extension functions?

The SD-1004 is engineered for smooth, intuitive transitions between the two exercise functions. Users can switch between the ab crunch and low back extension positions quickly without complicated adjustments. This streamlined design keeps workouts efficient, reduces wait times in busy facilities, and ensures a seamless user experience for both supervised training environments and self-directed gym members.

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