Built for Strength. Designed for Professionals.

The Skelcore Trinity Leg Extension Pin Load is a premium, Commercial-grade strength training machine engineered for high-traffic fitness facilities. With precision biomechanics, a robust 220 lb. weight stack, and an ergonomic frame design, it delivers exceptional performance for gyms, studios, and performance centers seeking reliable, member-friendly equipment built for durability and results.

What It Is & Who It's For

This professional-grade leg extension machine isolates and strengthens the quadriceps with smooth, controlled motion. Perfect for Commercial gyms, personal training studios, and sports performance facilities, it supports both beginner and advanced strength programs. The adjustable back pad and ankle roller enable personalized positioning, promoting proper knee alignment and reducing joint stress. Whether used in a selectorized machine circuit or for targeted lower-body work, the Skelcore Trinity Leg Extension offers efficiency, safety, and versatility for every member.

Key Features

• 220 lb. Weight Stack — Delivers scalable resistance suitable for all fitness levels, from rehab and onboarding to hypertrophy and performance training.
• Ergonomic Design — Ensures a natural leg extension path, reducing stress on joints while maximizing quad activation and comfort.
• Adjustable Back Pad & Ankle Roller — Allows full customization for users of varying heights, supporting optimal body alignment and effective isolation.
• Steel Front Shroud with Laser-Cut Icon Logos — Protects internal components and enhances the aesthetic appeal of your strength training zone.
• Aluminum Pulleys & Pop-Pin Adjustments — Promote ultra-smooth motion and quick, reliable setup for fast member transitions during busy sessions.

Primary Exercises & Use Cases

• Leg Extensions — Focused quadriceps development for strength and size.
• Single-Leg Isolation Work — Helps correct muscle imbalances and supports injury prevention.
• Rehabilitation & Controlled Range Work — Safe, adjustable platform for post-injury recovery or joint stabilization training.
• Ideal for beginner onboarding, hypertrophy Programming, and PT small-group sessions where form and control are essential.

Benefits for Gym Owners

• Member safety & confidence: The ergonomic motion path and padded support system minimize knee strain and ensure consistent alignment, inspiring user trust and repeat use.
• Space efficiency: Compact 59.84×40.55×60.63-inch footprint allows seamless integration into strength circuits or selectorized machine lines without overcrowding.
• Durability: Commercial-grade construction with a steel shroud, aluminum pulleys, and multi-layer PU upholstery ensures years of reliable service even under heavy daily throughput.
• Low maintenance: Precision pulleys, sealed cables, and corrosion-resistant finishes reduce downtime and service costs.
• Revenue impact: Supports PT onboarding, lower-body strength blocks, and circuit training, driving engagement, member satisfaction, and retention through premium equipment experiences.

Technical Specifications

• Set-Up Size (in. / mm): 59.84×40.55×60.63 in. / 1520×1030×1540 mm
• Padded Material: PU Upholstery with Multi-Layer Foam
• Max User Weight ( lb. / kg.): 330.69 lb. / 150 kg.
• Load Weight / Weight Stack: 220 lb. / 100 kg.
• Max Total Load Weight: 286 lb. / 130 kg.
• Features: Steel Front Shroud with Laser-Cut Icon Logos, Pop-Pin Adjustment, Aluminum Pulleys for Smooth Movement

Placement & Programming Tips

• Ideal for the Selectorized Machine Circuit Zone or Strength Training Zone within Commercial gyms and studios.
• Pair effectively with adjustable benches, free weights, and dumbbells for complete lower-body training lanes.
• Integrates seamlessly into hypertrophy and bodybuilding programs, PT one-on-one coaching, and small group training pods focused on lower-body strength and muscle balance.

Care & Maintenance

• Wipe down upholstery and frame surfaces after each use with mild detergent or gym-grade disinfectant.
• Inspect pop-pin mechanisms, pulleys, and cables weekly to maintain smooth function and ensure safety.

Warranty & Support

All Skelcore Commercial equipment is backed by a comprehensive manufacturer warranty and dedicated service support. Our network of certified technicians ensures prompt maintenance assistance to keep your floor operational with minimal downtime.

Why Skelcore

Skelcore designs professional-grade fitness equipment engineered for durability, biomechanics, and performance. Trusted by athletes and facility owners worldwide, Skelcore machines deliver precision movement, superior aesthetics, and long-term reliability for every Commercial environment.