Spirit Fitness SP-6513 Biceps

Product Overview

The Spirit Fitness SP-6513 Biceps is a premium plate-loaded strength machine designed to deliver precise arm isolation with advanced biomechanics and smooth, controlled movement. Built to minimize shoulder involvement and maintain strict biceps engagement, it features an angled arm pad and pivoting curl bar that adapts to different users. With its compact footprint, ergonomic adjustability, and heavy-duty construction, the SP-6513 is ideal for high-performance strength zones and commercial training environments.

PIN: SP-6513

Key Features

• Angled Arm Pad for True Isolation
  Reduces shoulder involvement to keep focus directly on the biceps throughout the movement.
• Pivoting Curl Bar
  Automatically adjusts for varying forearm lengths, maintaining proper alignment with the axis of rotation.
• Adjustable Seat Alignment
  Ensures correct elbow positioning for optimal biomechanics and consistent muscle engagement.
• 4-Bar Linkage Seat Mechanism
  Keeps the seat properly aligned during adjustments, improving comfort and stability.
• Plate-Loaded Resistance System
  Enables progressive overload for advanced strength development.
• Smooth, Controlled Motion
  Engineered for fluid resistance and reduced joint stress throughout the curl range.
• Commercial-Grade Construction
  Built with a durable steel frame for long-term reliability in high-use facilities.

Specifications

Performance

• Exercise Type: Biceps curl (plate-loaded)
• Resistance System: Plate-loaded
• Maximum Load Capacity: 125 kg / 276 lb
• Movement: Lever-driven curl with pivoting grip alignment
• Target Muscles: Biceps, with secondary activation of forearms

Design & Build

• Frame: Heavy-duty commercial-grade steel
• Finish: Durable powder-coated surface
• Arm Pad: Angled design for improved isolation
• Handles: Pivoting curl bar for ergonomic positioning
• Seat System: Adjustable with 4-bar linkage for alignment
• Mechanics: Plate-loaded lever system with optimized axis of rotation

Dimensions & Capacity

• Dimensions (L × W × H): 1010 × 1335 × 946 mm (40" × 53" × 37")
• Machine Weight: 100 kg / 220 lb
• Maximum User Weight: 150 kg / 330 lb
• Maximum Load Capacity: 125 kg / 276 lb
• Footprint: Compact plate-loaded design for premium strength zones