
Spirit Fitness SP-1529 Biceps Curl – Independent
Product Overview
The Spirit Fitness SP-1529 Biceps Curl – Independent is engineered to deliver balanced, isolated arm training through independent arm movement and biomechanically precise positioning. Designed for commercial environments, it combines smooth resistance, ergonomic support, and durable construction to ensure effective and consistent upper-body workouts.
By allowing each arm to move independently, the SP-1529 helps correct muscular imbalances and promotes symmetrical strength development. Its anatomical positioning and optimized arm path ensure maximum biceps activation while minimizing involvement from secondary muscle groups—making it ideal for strength zones, rehabilitation facilities, and performance training environments.
PIN: SP-1529
Key Features
-
Independent Arm Movement
Dual-arm design allows each arm to work separately, improving strength balance and symmetry. -
Targeted Biceps Isolation
Exercise is performed in an anatomical position to maximize biceps engagement and reduce compensation from other muscles. -
Optimized Ergonomics & Alignment
Arm positioning and movement path align with the natural joint axis for safe and effective execution. -
Smooth Selectorized Resistance
Provides consistent, controlled loading suitable for all fitness levels. -
Two-Stage Increment Weight System
Integrated into the top plate for precise resistance adjustments and progressive overload. -
Reduced Shoulder Involvement
Ergonomic arm positioning minimizes shoulder activation, ensuring true biceps focus. -
Integrated Storage & Convenience
Top-cap tray allows users to store personal items during workouts. -
Commercial-Grade Construction
Heavy-duty steel frame and premium upholstery ensure long-term durability in high-use facilities.
Specifications
Performance
- Resistance Type: Selectorized weight stack
- Weight Stack: 91 kg (200 lb)
- Increment System: Two-stage increment
Design & Build
- Frame: Heavy-gauge commercial steel
- Movement: Independent dual-arm biceps curl
- Positioning: Anatomical arm alignment with isolated movement
Dimensions & Capacity
- Product Size: 1359 x 1134 x 1507 mm
- Product Weight: ~263 kg
- Maximum User Weight: ~160–180 kg (typical commercial standard)

