Spirit Fitness SP-4608 Leg Press / Calf Extension

Product Overview

The Spirit Fitness SP-4608 Leg Press / Calf Extension is a dual-function commercial strength machine engineered to deliver comprehensive lower-body training in a single, space-efficient unit. By combining leg press and calf extension exercises, it enables users to develop strength across the quadriceps, glutes, hamstrings, and calves with precise biomechanics. Designed with an adjustable footplate and back pad, the SP-4608 ensures optimal positioning, stability, and comfort—making it ideal for high-performance training environments and space-conscious facilities.

PIN: SP-4608

Key Features

• Dual-Function Lower Body Training
  Combines leg press and calf extension in one machine, maximizing versatility and floor space efficiency.
• Adjustable Footplate & Back Pad
  Allows users to achieve ideal positioning for both exercises, accommodating different body types and training needs.
• 4-Bar Linkage Footplate System
  Maintains proper ankle alignment throughout movement, enhancing safety and biomechanical accuracy.
• Angled Footplate for Calf Engagement
  Lower section of the platform is optimized specifically for calf press positioning.
• Smooth Cable-Driven Resistance
  Delivers consistent, fluid motion for controlled strength development.
• Integrated Rep Counter & Storage
  Tracks performance and provides convenient storage for personal items.
• Heavy-Duty Commercial Construction
  Built with high-grade steel and premium components for long-term durability in high-traffic gyms.

Specifications

Performance

• Exercise Type: Leg press & calf extension
• Resistance System: Selectorized weight stack
• Weight Stack: 132 kg / 290 lb
• Increment: 5 lb increments
• Pulley Ratio: Approx. 1.2 × weight
• Movement: Cable-driven dual-function system
• Target Muscles: Quadriceps, hamstrings, glutes, calves 

Design & Build

• Frame: Heavy-duty commercial-grade steel
• Finish: Electrostatic powder-coated, corrosion-resistant
• Footplate: Ergonomically designed for dual exercise functionality
• Mechanics: 4-bar linkage system for optimal joint alignment
• Seat & Backrest: Adjustable for proper positioning and comfort
• Cushioning: Premium high-density foam with durable upholstery
• Convenience Features: Rep/time counter, storage tray, enclosed weight stack 

Dimensions & Capacity

• Dimensions (L × W × H): 1940 × 1135 × 1580 mm (76" × 45" × 62")
• Machine Weight: 298 kg / 657 lb
• Weight Stack: 132 kg / 290 lb
• Maximum User Weight: Approx. 163 kg / 360 lb
• Footprint: Compact dual-station design for commercial facilities