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Basilisk Stack Loaded Leg Extension / Leg Curl

$2,899.99 USD

2-in-1 selectorized machine. Elite strength curve in a compact design.

Weight Type
Financing Available
Free & Fast Shipping
30 Day Returns
Excellent Warranty

Product Details

The Basilisk Leg Extension & Curl is what happens when you take a “simple” leg machine and make it a LEGendary machine— engineered for proper resistance, smooth operation, and a fit that actually works for real lifters.

  • Serious leg training→ Selectorized 2-in-1 design with a true 1:1 resistance ratio and dialed-in cam geometry for proper loading on both extensions and curls — no dead spots, no awkward resistance.
  • Engineered positioning → 40% seat slope (yep, specific on purpose) puts your hips, quads, and hamstrings where they need to be for effective isolation.
  • Built for real humans → Adjustable horizontal back pad, high-travel leg holder for easy in-and-out, and enough range to comfortably fit both shorter and taller users.
  • Smooth, reliable operation → Aluminum pulleys paired with a high-durability TPU cable — built to run smoother and last longer.
  • Configurable setup → Weight stack can be installed on the left or right side depending on your space and layout.
  • Expandable functionality → Compatible with 60mm rack attachments like Y-Dips and Seal Row Pads to get more out of your footprint.
  • Commercial-ready flexibility → Optional bolt-down capability and custom logo plates available for commercial facilities.
  • Two stack options, same performance → Choose 210 LB or 310 LB  depending on your goals — with upgrade paths so you’re never capped.

Why a Leg Extension / Hamstring Curl Machine?
Because some muscles are harder to train properly without the right tool — and “good enough” doesn’t cut it if you actually want results.

  • Targeted isolation → Directly train quads and hamstrings without relying on compound lifts to do all the work (and miss the details).
  • Balanced development → Build strength where you’re weakest to improve squats, deadlifts, and overall leg performance.
  • Joint-friendly training → Controlled movement and stable positioning reduce unnecessary strain while keeping tension where it belongs.
  • Consistent resistance → Machines provide tension where free weights fall off — especially at peak contraction.
  • Accessory work that actually works → Perfect for warm-ups, rehab, or finishing sets when precision matters most.

They’re one of the simplest ways to make sure your legs aren’t just strong — they’re complete.

Specifications

Warranty & Guarantees

Frame Warranty: Limited Lifetime — the frame is covered, period.
Parts Warranty (90 Days): Cables, upholstery, and pulleys are covered for 90 days from delivery. Normal wear and tear stuff — if something fails within that window on our end, we handle it.
How it works: If you ever need to make a claim, just reach out to us with your order details and a quick description of the issue. Our team will review it and get you sorted as quickly as possible.
Other Questions?Contact our support team—we're here to help.

Shipping & Returns

We get it — shipping heavy gym gear raises some important questions. Here’s exactly what to expect:

Free Shipping: Available on all orders across the continental U.S. No hidden fees.

Shipping Time: Orders ship within 1–3 business days and usually arrive within 3–7 business days (during sales events, delivery may take up to 2 additional business days).

Fulfilled mostly from our main distribution centers in Los Angeles and Indianapolis for faster coast-to-coast delivery. Local to Indy? Pick up in-store!

Returns: All Bells of Steel products are backed by our return policy If you don’t love your order, return it within 30 days—simple and stress-free.

Bells of Steel Training App

Your equipment purchase unlocks 30 days free on the Bells of Steel Training App.

Pick your equipment setup in-app and get a coach-built strength program that matches — ZERO substitutions. Built from the ground up for what you own.

App Features:

•  30+ full programs + 20+ single-day workouts

•  1,000+ exercise demo videos with coaching cues

•  Progress tracking: volume, intensity, PRs

•  Works with Apple Health, Health Connect, Garmin, Fitbit

•  Couples Plan available

•  30 day money-back guarantee

Explore the Bells of Steel Training App

Want a coach instead? Online Coaching is available with a certified in house Bells of Steel coach.

See Why 100,000+ Lifters Choose Bells of Steel

Product Features

  • Built for More Than Just Legs — 60MM Attachment Compatible

    The Basilisk doesn’t just sit in your gym — it works with it. Compatible with60mm rack attachments like Y-dips, seal row pads, and more, it lets you get more out of the same footprint. One machine, more training options, less wasted space.

  • Engineered Strength Curve — Not Just a Combo Machine

    We spent years dialing in the biomechanics of both movements. The cam and pivot points are calibrated so each rep through the full range of motion actually feels right — not forced, not dead. This is the difference between a machine that works and one that trains.

  • 40% Seat Slope — Built for Real Leg Development

    Not arbitrary. The 40% seat angle puts your hip flexors in the right position to isolate the quads during extension and loads the hamstrings correctly for curls. It's the specific angle we landed on after extensive testing.

  • Ultra-Compact Footprint — Built Short on Purpose

    We cut the height to save space and cost — not wasted vertical height that serves no function. The Basilisk fits in home gyms where full-size commercial units won't. 5.75 feet (175cm) tall, 3 feet (91cm) wide, and 4.9 feet (149cm) deep. Garage gym and basement gym friendly.

  • Aluminum Pulleys + TPU Cable — Built for the Long Run

    Cheap machines jam. Cables fray. We engineered our way around both. Aluminum pulleys run smoother and outlast steel. TPU cable is tougher than standard alternatives. We designed this for smooth sailing for the long haul, with a warranty to back it up.

  • Reversible Stack Position — Left or Right, You Decide

    The stack can be configured on the left or right side of the machine. Because your home gym setup should be built around your needs, not the other way around.

Product Details

If you’re here, you’re above the whole “skipping leg day” thing. A dedicated leg machine? No shortcuts. Big respect. A dedicated leg machine with a 310 LB stack and a strength curve we obsessed over for years? Now we’re talking.

Most leg extension/curl combos in this class tap out around 250 lbs. The Basilisk gives you 210 or 310 — your call. Just getting started? Go 210. Planning to build Quads of the Gods? Go 310. And if you outgrow the 210, we’ve got a 100 LB upgrade kit with your name on it (figuratively).

But let’s be honest — the stack number isn’t the magic. The strength curve is.

We didn’t just slap a cam on and call it a day. We fine-tuned the geometry and pivot points so extensions and curls feel right. Smooth where they should be. Challenging where they need to be. No weird dead spots. No “why does this feel off?” moments. Just clean resistance the whole way through.

That 40% slope on the seat? Not random. It’s the sweet spot.

We tested, we did the math (well...paid someone to). It puts your hip flexors where they need to be for quad isolation, and lines up your hamstrings properly for curls. We tested it. A lot. Probably more than we should admit. The result: it works.

Fit-wise, we’ve got you covered.The back pad adjusts. Seat and leg positions adjust enough to fit lifters from 5'3" to 6'2" without feeling like a compromise. The leg holder gets out of your way when you need it to. And the stack can go left or right — because your gym layout should adjust to you. Not the other way around.

Now let’s talk durability.

Aluminum pulleys. TPU cable. Not sexy… until your machine doesn’t jam mid-set.

Cheap machines bind. Cables wear out. That’s exactly why we built the Basilisk the way we did — smoother operation, longer lifespan, and backed by our no-nonsense warranty.

We also kept the height low — on purpose.

Tall machines waste vertical space. The Basilisk fits where commercial units won’t, which makes it just as at home in a garage as it is on a gym floor. And if you are running a facility, we’ve got custom logo plates and 60mm attachment compatibility ready to go.

End result?

You’re getting a machine that goes toe-to-toe with competitor options, only they charge $1,000–$2,000 more. Same features. Same performance.

The only real difference? The logo.

And we don’t charge extra for that.

PRODUCT SPECS

Manuals and Assembly
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
The Basilisk Stack Loaded Leg Extension / Leg Curl by Bells of Steel USA is a black gym machine with padded seat, backrest, and leg support, a 310 lb weight stack, pulleys, and levers for leg extension and curl exercises.
Bells of Steel USA

Basilisk Stack Loaded Leg Extension / Leg Curl

From $2,599.99 USD

If you’re here, you’re above the whole “skipping leg day” thing. A dedicated leg machine? No shortcuts. Big respect. A dedicated leg machine with a 310 LB stack and a strength curve we obsessed over for years? Now we’re talking.

Most leg extension/curl combos in this class tap out around 250 lbs. The Basilisk gives you 210 or 310 — your call. Just getting started? Go 210. Planning to build Quads of the Gods? Go 310. And if you outgrow the 210, we’ve got a 100 LB upgrade kit with your name on it (figuratively).

But let’s be honest — the stack number isn’t the magic. The strength curve is.

We didn’t just slap a cam on and call it a day. We fine-tuned the geometry and pivot points so extensions and curls feel right. Smooth where they should be. Challenging where they need to be. No weird dead spots. No “why does this feel off?” moments. Just clean resistance the whole way through.

That 40% slope on the seat? Not random. It’s the sweet spot.

We tested, we did the math (well...paid someone to). It puts your hip flexors where they need to be for quad isolation, and lines up your hamstrings properly for curls. We tested it. A lot. Probably more than we should admit. The result: it works.

Fit-wise, we’ve got you covered.The back pad adjusts. Seat and leg positions adjust enough to fit lifters from 5'3" to 6'2" without feeling like a compromise. The leg holder gets out of your way when you need it to. And the stack can go left or right — because your gym layout should adjust to you. Not the other way around.

Now let’s talk durability.

Aluminum pulleys. TPU cable. Not sexy… until your machine doesn’t jam mid-set.

Cheap machines bind. Cables wear out. That’s exactly why we built the Basilisk the way we did — smoother operation, longer lifespan, and backed by our no-nonsense warranty.

We also kept the height low — on purpose.

Tall machines waste vertical space. The Basilisk fits where commercial units won’t, which makes it just as at home in a garage as it is on a gym floor. And if you are running a facility, we’ve got custom logo plates and 60mm attachment compatibility ready to go.

End result?

You’re getting a machine that goes toe-to-toe with competitor options, only they charge $1,000–$2,000 more. Same features. Same performance.

The only real difference? The logo.

And we don’t charge extra for that.

Weight Type

  • Weight Stack (310 LB)
  • Weight Stack (210 LB)
View product

  • FREE SHIPPING

  • TRUSTED SINCE 2010

  • EXCELLENT WARRANTY