ATX Legacy Leg Extension/ Leg Curl BCO-780

ATX Legacy Seated Leg Extension / Laying Leg Curl BCO-780

Older BCO-770 Review:

New 2026 model Leg Ext/ Curl BCO-780 comparison versus the superceded BCO-770:

Details of the ATX BCO-780:

The ATX Legacy Leg Extension / Leg Curl BCO-780 is the latest evolution of a proven, plate-loaded 2-in-1 lower-body machine. Built on the same trusted platform as its predecessor, it delivers the familiar strength curve, solid feel, and reliability users expect - now enhanced with a refreshed collegiate-style design and expanded resistance options.

While engineered to commercial standards, this model is primarily favoured by serious home gym owners and personal trainers who want versatility, durability, and performance without the size, weight, or cost of a full selectorised commercial unit.

Proven 2-in-1 Design

Train quadriceps and hamstrings on a single, compact machine with quick and intuitive changeover between leg extensions and leg curls. The movement path remains smooth, controlled, and consistent—ideal for hypertrophy, strength work, and controlled tempo training.

Updated Look, Same Trusted Platform

The BCO-780 introduces a refined aesthetic with a more modern, collegiate feel, while retaining the rugged construction and straightforward usability that made the original Legacy model so popular.

Three Resistance Styles - Use Individually or Combined

One of the key upgrades with the BCO-780 is its expanded approach to resistance loading. You’re no longer limited to a single resistance feel:

• Plate-Loaded Resistance
• The classic lever-based loading provides the traditional strength curve expected from a plate-loaded machine.
• Cable Connection (Constant Resistance Option)
• Using the integrated connector and pulley mechanism, the machine can be linked to an adjustable pulley system to introduce smooth, consistent resistance through the entire range of motion.
• Power Band Resistance (Variable Strength Curve)
• Integrated band pegs allow resistance bands to be added, increasing tension progressively and enhancing the strength-curve feel of the movement.

These resistance methods can be used individually or combined - plates alone, cables alone, bands alone, or any combination of the three - allowing users to fine-tune loading profiles to suit different goals, training phases, or personal preferences.

User-Focused Adjustability

Multiple adjustment points help achieve correct joint alignment and comfortable positioning across a wide range of user heights and limb lengths - an important consideration for PT studios and shared home gym environments.

Commercial-Grade Build, Home-Gym Focus

Constructed from heavy-duty steel with a stable footprint and durable padding, the BCO-780 is built to last. That said, its size, loading style, and flexibility make it best suited to home gyms and personal training studios, rather than high-traffic commercial floors where selectorised machines are typically preferred.

Is This the Right Machine for Your Gym?

The ATX BCO-780 is ideal if you want:

• Plate-loaded training with enhanced versatility
• Multiple resistance options without moving to a full weight-stack machine
• Commercial-grade construction in a home or PT-friendly format

If you’re looking for alternatives, you may also want to consider:

• JAWS Legacy Standing Leg Extension & Curl - a more compact, upright solution for commercial floors
• ATX BCO-680 Seated Leg Extension & Curl - a simpler home-focused seated alternative
• TGR Series 2-in-1 Seated Leg Extension & Curl (Selectorised) - a full commercial, stack-weight option designed for high-traffic gym environments

Quick Q&A on Leg Extensions:

Charged with pulling various members of the team aside for quick impromptu Q&A's, Jack grabs Matt in this video, which throws up questions and answers relating to quadriceps muscles, knee joint pain, isolation exercise compared to compound exercises, leg extension variations, common mistakes, rectus femoris, leg extension angle, etc. Oh, and it features the BCO-770 Leg Extension Machine.