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IRONSIDE Infinity Dual Leg Curl & Extension

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Shipping starting September 15, 2026

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Sale price $2,647.89 Regular price $3,549.99
Estimated Shipping: $349Free pickup at our Dorval, QC warehouse
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IRONSIDE FITNESS CANADA  |  SKU: A081020504001

IRONSIDE Infinity Seated Leg Curl & Extension Machine — Advanced Dual Leg Training

The IRONSIDE Infinity Seated Leg Curl & Extension Machine is a high-performance dual-function machine designed to deliver comprehensive and efficient leg workouts. Perfect for strengthening the quadriceps through leg extensions and targeting the posterior chain with leg curls, this equipment is essential for commercial gyms and personal training spaces.

Robust and Durable Construction

Built with a sturdy 50 x 100 x 3 mm square steel frame, this machine is engineered to withstand intense training sessions. The seats and pads are cushioned with high-density polyurethane foam (180 kg/m³), offering ergonomic and comfortable support even during prolonged workouts.

Smooth Movement and Adjustable Resistance

Equipped with premium aluminum pulleys and bearings, the machine features a 1:2 pulley ratio, ensuring smooth, controlled, and precise motion. The combined 100 kg weight stack allows users to easily customize resistance levels to match rehabilitation programs or intensive strength training goals.

Ergonomic and Customizable Comfort

The IRONSIDE Infinity Seated Leg Curl & Extension Machine allows adjustment of starting positions and resistance levels, making it versatile and comfortable for users of all sizes and experience levels.

Key Features

  • Dual Functionality: Enables leg curls and leg extensions for comprehensive quadriceps and posterior chain training.

  • Sturdy Frame: Constructed with 50 x 100 x 3 mm square steel for long-lasting stability and durability.

  • Ergonomic Seating: Cushioned with high-density polyurethane foam (180 kg/m³) for maximum comfort.

  • Precision Pulley System: Aluminum pulleys with 1:2 ratio for smooth and accurate movement.

  • Adjustable Resistance: 100 kg weight stack to personalize intensity according to user needs.

  • Rehabilitation and Strength Training: Ideal for versatile use in gyms and therapy programs.

The IRONSIDE Infinity Seated Leg Curl & Extension Machine is the perfect choice for those seeking a reliable, versatile, and durable leg training machine capable of adapting to various training needs and levels.

Complete your leg routine by pairing it with the Dual Leg Curl or reinforcing quad activation through the Leg Extension.