Spirit Fitness SP-4220 Back Extension

Product Overview

The Spirit Fitness SP-4220 Back Extension is a commercial-grade strength bench designed to target the lower back, glutes, and posterior chain. Featuring a 45° angled design, it promotes proper biomechanics while reducing strain on the spine. With adjustable pads and a stable steel frame, it ensures comfort, safety, and durability—making it ideal for professional gyms and strength training facilities.

PIN: SP-4220

Key Features

• 45° Angled Design
  Ideal for effective posterior muscle training while minimizing risk of hyperextension.
• Adjustable Thigh Pads
  Accommodates users of different heights for proper positioning.
• Lower Leg / Calf Support Pads
  Reduces knee discomfort and enhances stability during exercises.
• Ergonomic & Comfortable Padding
  Supports correct posture and safe execution of movements.
• Heavy-Duty Steel Frame
  Built for durability and stability in commercial environments.
• Compact & Functional Design
  Fits seamlessly into strength zones while offering focused posterior training.

Specifications

Performance

• Exercise Type: Back extension / hyperextension bench
• Resistance Type: Bodyweight
• Movement Type: 45° posterior chain extension
• Target Muscles: Lower back (erector spinae), glutes, hamstrings
• Primary Use: Core strengthening, lower-back conditioning, rehabilitation

Design & Build

• Frame: Heavy-duty commercial-grade steel
• Angle: 45° fixed hyperextension design
• Adjustment: Adjustable thigh pads
• Support Features: Calf/leg support rollers
• Padding: Ergonomic, high-density upholstery

Dimensions & Capacity

• Dimensions (L × W × H): 1422 × 820 × 830 mm (56" × 32" × 33")
• Product Weight: ~51 kg / 112 lb
• Max Load Capacity: 280 kg / 617 lb
• Max User Weight: ~180 kg / 396 lb