Cybex Eagle NX Back Extension silver frame transparent

Cybex Eagle NX Back Extension black frame transparent

Bars, handles and straps shown in photos are not always included. Check the description, or add attachments to your order.

Receive by Nov 25estimated, may change

Remanufactured

Cybex Eagle NX Back Extension

$1,895.00 $1,516.00 Save $379.00 Use code at checkout

4.8 277 Google reviews

Delivery to your ZIP

Receive by Nov 25

ConditionRemanufactured

Availability

Only 1 left in stock

Pay over timeBusiness financing

Will it fit in your room?

Parts & Labor, Fully Rebuilt

Remanufactured to full mechanical spec, covered from the day it lands.

Coverage

Bars, handles and straps shown in photos are not always included. Check the description, or add attachments to your order.

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Machine overview

This remanufactured Cybex Eagle NX Back Extension uses a contoured lumbar pad with an adjustable start position.

Condition: Remanufactured

Warranty: 1 Year Parts & Labor (Extended Available)

Returns: 30-Day Returns & Exchanges

Shipping: Driveway Delivery, or Inside Delivery & Assembly

Receive by: Nov 25

How It Ships: Fully Assembled

Size: 59" × 40" × 56" tall

See this in my gym Drop it into a room drawn to scale and build around it

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Before the freight booking

Coverage and accessories have to go on the same booking as the machine. Add them here and they travel together.

Extended warrantyRecommendedEvery machine includes 1 year parts and labor.

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Customer reviews

Real Gyms. Real People.

See why gym owners and home gym builders trust Build A Gym with their gyms.

4.8 ★★★★★ 277 reviews on Google

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Lunk Zulu

a month ago

★★★★★

Great communication, products, and I'm very happy with what I purchased from them. I will be back!
Read on Google
Mark Anderson

a month ago

★★★★★

Just want to say thank you to the team at CTX!! Not only was shipping fast and efficient, but customer service was outstanding!! Any question that was needed to be answered was meet with a quick response. Thank you again!!
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Greg G

a month ago

★★★★★

Dillon was very helpful, patient with answering all my questions, very knowledgeable. He insured I had all the necessary answers before I made my purchase. Thanks Dillon, great customer service!
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Ben

2 months ago

★★★★★

I was thinking about getting Ozempic, but I’m not in the mood to go blind yet. So I decided I’d do it the old fashioned way and called CTX.
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Joel Clarke

2 months ago

★★★★★

CTX Built is a great company to work with. Excellent communication and customer service. Their team was easy to work with and extremely helpful. Would do more business with them and I plan to.
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Trevor Asmus

2 months ago

★★★★★

CTX stands by their products. I recently purchased a Precor elliptical from them & it arrived with a mechanical flaw. They coordinated with a technician to get my product fixed like new. They accomplished this despite the fact that my home was two states away. Special thank you to Nichole for staying accessible and attentive throughout the process!
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Isaac Iniguez

2 months ago

★★★★★

Great product and awesome leadership. Equipment was straight forward to build and team is always responsive when needing information or any help whatsoever. So glad I found them for outfitting my gym, best decision I have ever made for my business!
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Mason Wright

2 months ago

★★★★★

Absolutely best in business! Not only is Dillon just genuinely a great human being, he’s real and honest. Loved everything I’ve gotten from him and the team. I’m about 10-15 pieces in deep with him and not stopping anytime soon! Absolutely recommend hitting these guys up for home/commercial equipment. New or refurbished!
Read on Google
Lionel

4 months ago

★★★★★

Excellent selection of products with a large selection, consultants will help you decide
Read on Google
Caitlin Monterrojas

4 months ago

★★★★★

Dillion was great to work with!! Super friendly, quick turn around time, and great at communicating! The guys who delivered it Robb and JJ were also amazing. They came prepared and were very fast and efficient. They offered to help us move around other equipment to ensure we loved our gym! Super nice people and an amazing company! I would highly recommend working with them. Oh and the equipment itself is high quality and looks great in our home gym!
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Michael Trevino

5 months ago

★★★★★

I inquired to sell a few machines from my personal training studio. From beginning to the end, customer service was great! CTX was very quick with responses and communication was there! I very much will take my business back to CTX, and I highly recommend them.
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Jose Garcia

5 months ago

★★★★★

Bought this refurbished Matrix Stair mill and from the minute I mesaged about it they offered great communication and shipping was perfectly coordinated! Highly recommend this CTX Gym
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Ben Kline

5 months ago

★★★★★

We purchased a Woodway treadmill from CTX Home Gyms and had a warranty issue a few months later. Dylan and his team were quick to respond, communicated throughout the process, and got everything resolved right away. Great customer service — highly recommend this company.
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Ike Shaw

5 months ago

★★★★★

I can’t say enough great things about CTX Home Gyms. They did an incredible job on both my commercial gym and my home gym setup. The entire process was seamless from beginning to end — professional communication, top-quality equipment, attention to detail, and outstanding customer service.

They truly know fitness equipment and how to create a space that looks amazing and functions at a high level. Whether you’re building a home gym or a full commercial facility, I highly recommend CTX Home Gyms. They made the entire experience easy, stress-free, and exceeded every expectation.
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Daulton Beam

5 months ago

★★★★★

Dillon and his team outfitted my entire new gym. We worked together from the beginning stages. They had the same exact vision I had. They did everything possible to make our dream gym. And they did!!
The entire experience was amazing. I literally told them what I wanted and they made it even better. The Build line is amazing. I get compliments on it daily. From the stitching on the equipment to how smooth it is. I can not say enough good things about it. And the plate loaded build equipment is legit. I’m an equipment snob. I love finding the old pieces. But this stuff is even better. Pure quality and can stand some big weights!
We plan on opening a couple more gyms, and we are definitely usi
Read on Google
Wade Mikulla

6 months ago

★★★★★

Great company, Excellent Attention to Detail, Very Good Customer Service & the Price is Right!!!
Read on Google

Rebuilt in our Jarrell, TX shop

What remanufactured means here

Every machine we sell as remanufactured goes through the same process, whatever the brand or the price. Not a wipe-down and a price tag.

Inspected and stripped down

Assessed frame to console, then taken apart and checked part by part. Nothing gets judged from the outside.
Wear parts replaced

Belts, cables, bearings, bushings, grips and safety-critical hardware are replaced as standard, whether or not they still have life in them.
Refinished and rebuilt to spec

Electronics bench-tested, frames and welds checked, panels refinished, then reassembled to the manufacturer's specification.
Tested under load

A full operational cycle under load before it ships. Anything that fails the final check goes back through service, not onto a truck.

See the full 7-step standard

Get an email when new machines land Good units go fast. We'll email you when new machines land - nothing else.

A Cybex Eagle NX Arm Curl photographed in our Texas shop

Shop photo

Real photo, similar machine

From our shop: Cybex Eagle

A Cybex Eagle NX Arm Curl from the same series, photographed mid-remanufacture in our Texas shop. This model goes through the same process.

Model shown: Cybex Eagle NX Arm Curl
Stage: On the bench
Photographed: Oct 13, 2026
Where: Our shop in Texas
Headed to
Rebuilt by

Inspected frame to console, then fully disassembled
Belts, cables, bearings and grips replaced as standard
Tested under load before it ships

This photo shows a Cybex Eagle NX Arm Curl, not this exact model. Every machine we sell goes through the same process.

See the full remanufacturing process

Product details

Commercial-grade equipment, inspected and supported by warranty.

The Cybex Eagle NX Back Extension uses a contoured lumbar pad with an adjustable start position - the contoured pad conforms to the lower back's natural curvature to maintain spinal alignment through the extension arc, and the adjustable start position sets the degree of flexion at the beginning of the movement to match each user's range of motion and rehabilitation requirements. A gas-spring-assisted seat adjusts smoothly between users without manual cranking.

Selectorized resistance delivers controlled, progressive loading for the erector spinae on an 827 lb Eagle NX commercial frame - one of the most substantial back extension frames in the commercial selectorized market, 59" × 40" footprint. Remanufactured.

Primary muscles targeted

Erector Spinae Multifidus

Secondary muscles

Gluteus Maximus Hamstrings Core Stabilizers

Key features

Contoured Lumbar Pad & Adjustable Start Position

The contoured lumbar pad conforms to the spine's natural curvature to maintain alignment through the extension arc. The adjustable start position sets the degree of initial flexion for each user's range of motion - tighter for full-range lumbar work, wider for rehabilitation or limited-mobility users.

Gas-Spring-Assisted Seat

Gas spring assistance makes seat height adjustments effortless and fast - no manual cranking, smooth repositioning between users of different heights in high-turnover commercial environments without interrupting training floor flow.

827 lb Eagle NX Commercial Frame

The 827 lb frame is notably substantial for a back extension machine - Eagle NX construction standard throughout, built for sustained high-frequency commercial use with the structural integrity and finish associated with the Eagle NX line.

Specifications

Dimensions (L × W × H)

59" × 40" × 56"

Machine Weight

827 lb

Weight Stack

Condition

Remanufactured

Cybex Eagle NX · View condition details

Design

Contoured Pad · Adj. Start · Gas-Spring Seat

Contoured lumbar pad · Adjustable start position · Gas-spring seat · Selectorized resistance · 827 lb Eagle NX frame

1. What are the exact dimensions and footprint of this Cybex Eagle NX Back Extension?

This machine measures 59 inches front to back, 40 inches wide, and 56 inches high, with a 16 square foot footprint. Allowing a bit of extra clearance around it is suggested for user comfort and access.

2. What muscles does this back extension machine target?

It primarily trains the erector spinae and multifidus, with secondary emphasis on the gluteus maximus, hamstrings, and core stabilizers.

3. How is the seat adjusted, and is it suitable for facilities with many users?

The seat uses a gas-spring assist for smooth, quick height adjustments without manual cranking, making it ideal for high-turnover commercial settings.

4. What is the condition of this equipment and what should I expect cosmetically?

This is a remanufactured commercial machine, fully rebuilt and tested in Texas. Cosmetic marks from prior use may remain, but all worn parts are replaced and it is certified for commercial use.

5. Is there an assembly manual included with this machine?

There is no assembly manual available for this product in the Assembly tab.

6. What warranty and delivery options are available for this unit?

Remanufactured machines come with a 1-year parts and labor warranty from delivery. Delivery options include curbside or inside delivery with assembly, and you can view the estimated receive-by date on the product page.

30-Day Returns & Exchanges

Buy with confidence. Every Build A Gym order includes a 30-day window to return or exchange, whether you want a different size, color or configuration. Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns; warranty and damage claims carry no restocking fee. Full details in our Returns, Exchange & Refund Policy.

Primary muscles targeted

Erector Spinae Multifidus

Secondary muscles

Gluteus Maximus Hamstrings Core Stabilizers

Key features

Contoured Lumbar Pad & Adjustable Start Position

Gas-Spring-Assisted Seat

827 lb Eagle NX Commercial Frame

Specifications

Dimensions (L × W × H)

59" × 40" × 56"

Machine Weight

827 lb

Weight Stack

Condition

Remanufactured

Cybex Eagle NX · View condition details

Design

Contoured Pad · Adj. Start · Gas-Spring Seat

Contoured lumbar pad · Adjustable start position · Gas-spring seat · Selectorized resistance · 827 lb Eagle NX frame

1. What are the exact dimensions and footprint of this Cybex Eagle NX Back Extension?

2. What muscles does this back extension machine target?

It primarily trains the erector spinae and multifidus, with secondary emphasis on the gluteus maximus, hamstrings, and core stabilizers.

3. How is the seat adjusted, and is it suitable for facilities with many users?

The seat uses a gas-spring assist for smooth, quick height adjustments without manual cranking, making it ideal for high-turnover commercial settings.

4. What is the condition of this equipment and what should I expect cosmetically?

This is a remanufactured commercial machine, fully rebuilt and tested in Texas. Cosmetic marks from prior use may remain, but all worn parts are replaced and it is certified for commercial use.

5. Is there an assembly manual included with this machine?

There is no assembly manual available for this product in the Assembly tab.

6. What warranty and delivery options are available for this unit?

30-Day Returns & Exchanges

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