BodyKore Isolation Leg Extension Leg Curl GR639
View all BodyKore
View all BodyKore
Commercial selectorized leg extension and leg curl combo with adjustable ergonomics — built for high-traffic COMMERCIAL GYMS
The BodyKore Isolation Leg Extension / Leg Curl GR639 is a versatile lower-body station designed to train both the quadriceps and hamstrings with smooth, guided resistance. Built for commercial gym floors, this dual-function machine helps members perform consistent, biomechanically sound reps—without the setup complexity of free weights.
Featuring an interchangeable combo design, the GR639 lets users switch between leg extensions and leg curls in one unit. With a 220 lb selectorized weight stack (upgradeable to 340 lbs), multiple starting positions, and a 6-point adjustable seat, it accommodates users of all sizes while delivering full muscle contraction and proper joint alignment.
If your facility wants maximum leg-training variety in minimal space, the GR639 is a proven Isolation Series essential.
Two Essential Leg Movements in One
Switch between leg extension and leg curl training on a single station—ideal for strength floors, rehab programs, and efficient leg days.
Optimized Biomechanics
Angled pads and a well-placed pivot point help users maintain proper alignment and achieve stronger quad and hamstring contractions.
Adjustable Seat Depth & Angle
Dial in the correct fit for different body sizes to improve comfort, leverage, and consistent rep quality.
Heavy-Duty Commercial Frame
Built with 3.5″ oval rolled steel tubing rated over 1000 lbs for durability in high-traffic commercial environments.
Multiple Starting Positions
Set preferred start points to control range of motion and support safe progression for beginners through advanced users.
Adjustable Thigh Roller
Helps keep users securely positioned while improving leverage and comfort during leg curls and extensions.
Selectorized Resistance
Includes a 220 lb precision-milled steel weight stack, upgradeable to 340 lbs for stronger member populations.
Facility-Friendly Details
Durable powder-coated finish plus an integrated cup / phone / key holder for added member convenience.
Model / SKU
GR639 Leg Extension / Leg Curl
Category
Selectorized Leg Extension & Leg Curl Machine
Dimensions
68″ L × 50″ W × 65″ H
Footprint
Approximately 24 sq. ft.
Machine Weight
582 lbs
Frame
Rolled Steel Oval Tubing
Frame Color Options
Black or Silver
Weight Stack
220 lb Stack: (7) x 10lb plates, (10) x 15lb plates
340lb upgrade adds (8) x 15lb plates to the stack
Adjustability
6-Point Seat Adjustment, Multiple Start Positions
Intended Use
Commercial Gyms & Training Facilities
Most of our equipment requires some level of assembly, and many customers choose to handle this themselves using the included manual.
Assembly Services: We partner with installers who can assist with in-home or commercial setup. Learn more.
Need a quote? Contact us at info@strengthwarehouseusa.com or call +1 (844) 777-9754.
Every product we sell at Strength Warehouse USA is brand new and backed by the full manufacturer’s warranty. We’re an authorized dealer for every brand we carry, so your purchase is fully protected.
Have a question about warranty coverage before you buy? Just reach out — we’re happy to walk you through the details.
Let’s Talk
Build a Space Worth Training In
From garage gyms to full-scale commercial builds, we help you get the right equipment, layout, and support — no fluff, just results.
Proven to Deliver
Over 10,000 customers served — from first-time home gym owners to major commercial builds.
Built to Fit
No cookie-cutter setups. We help tailor the right layout, brand mix, and delivery plan for your goals.
Everything You Need, Nothing You Don’t
We’ll tell you what’s worth it, what’s overkill, and what’ll actually make a difference in your training.
Straight-Up Support
We don’t disappear after checkout. You get updates, help, and a real rep you can reach.