Parcel ground shipping
Items weighing 149 lb or less ship by ground parcel rather than freight.
Bars, handles and straps shown in photos are not always included. Check the description, or add attachments to your order.
Receive by Nov 27estimated, may change
Remanufactured
Cybex Eagle NX Back Extension
$1,895.00
$1,516.00
Save $379.00
Use code
at checkout
4.8
ConditionRemanufactured
Availability
Only 1 left in stock
Pay over timeBusiness financing
Business financing from $…/mo*
*Estimate, subject to credit approval.
Parts & Labor, Fully Rebuilt
Remanufactured to full mechanical spec, covered from the day it lands.
Bars, handles and straps shown in photos are not always included. Check the description, or add attachments to your order.
Shipping calculator
Enter your state and ZIP code to see delivery options and prices.
Machine overview
Condition: Remanufactured
Warranty: 1 Year Parts & Labor (Extended Available)
Returns: 30-Day Returns & Exchanges
Shipping: Driveway Delivery, or Inside Delivery & Assembly
Receive by: Nov 27
How It Ships: Fully Assembled
Delivery options
How delivery works
Your item’s shipping method and price are confirmed in the shipping calculator and at checkout. Here is what each delivery path means.
Driveway freight delivery
Your equipment is palletized and protected. The freight carrier schedules delivery, then uses a liftgate to lower it to your curb or driveway. Moving it inside and unpacking it are up to you.
Inside delivery & assembly
When selected and available for your address, the delivery team brings the equipment into the room, assembles and tests it, then removes the packaging.
Full truckload
For commercial builds and multi-pallet orders, a dedicated trailer keeps the full order together in one delivery. We confirm the unloading plan before the truck ships.
Size: 59" × 40" × 56" tall
What Remanufactured Means
Every remanufactured machine is fully disassembled, deep cleaned, repaired or re-parted to factory spec, then tested under load before it ships. Backed by one year parts and labor, with extended coverage available.
Warranty Coverage
New and remanufactured equipment are both covered for one year, parts and labor, backed by us. Extended protection is available on either through BAG Care+. Used equipment is sold as-is with no warranty coverage, and is described honestly before you buy. We service nationwide - every ZIP code in the country - so coverage travels with the machine.
30-Day Returns & Exchanges
Change your mind within 30 days of delivery and you can return the machine or exchange it for a different size, color or configuration.
Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns and exchanges. Freight items must go back packaged to the same standard they arrived in. We will tell you exactly what that means before anything is collected.
Anything that arrives damaged or fails under warranty is handled separately and carries no restocking fee. Full terms are in our Returns, Exchange & Refund Policy.
Add before it ships
Before the freight bookingCoverage 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.
Pairs well with this
Nothing selected yet
Added as separate lines on your order.
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
Write a review
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3 days ago
★★★★★
Nicole was extremely helpful, communication was tops, takes care of business. Thank you!
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2 weeks ago
★★★★★
Equipment is awesome. Delivered and setup in the garage. Will be going back for more
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2 weeks ago
★★★★★
By far the best equipment I’ve had and very reliable for my home and it’s also for a commercial gym also I have The Zaia
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2 weeks ago
★★★★★
Had some issues with the assembly process. Dillan was quick to reach out and set up a video call for assistance. He provided follow ups to ensure everything was squared away. Great customer service!
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a month ago
★★★★★
Great communication, products, and I'm very happy with what I purchased from them. I will be back!
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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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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!
Read on Google -
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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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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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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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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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!
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4 months ago
★★★★★
Excellent selection of products with a large selection, consultants will help you decide
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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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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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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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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.
-
Moving parts rebuilt or replaced
Every moving and touched component, from belts and cables to bearings, bushings and grips, is evaluated and rebuilt or replaced, then the machine gets a full cosmetic restoration.
-
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.
Get an email when new machines land
Good units go fast. We'll email you when new machines land - nothing else.
Shop photo
Real photo, not a render
On our bench in Texas
A recent Cybex Eagle NX Back Extension mid-remanufacture, photographed by the tech doing the work.
- Stage
- On the bench
- Photographed
- Oct 29, 2026
- Where
- Our shop in Texas
- Headed to
- Rebuilt by
Yotuel V.
- Inspected frame to console, then fully disassembled
- Every moving and touched component rebuilt or replaced
- Full cosmetic restoration
- Tested under load before it ships
This is a recent unit of this model, not necessarily the one you'll receive. Yours goes through the same process.
See the full remanufacturing processProduct 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
Contact Us
Contact us for stack specifications
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.
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
Contact Us
Contact us for stack specifications
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.
Save 5%
Complete the room
The machines our install crew puts in the same room as this one - priced as one shipment, delivered in one booking.
$1,895.00
This machine
Bundle total
- Items
- $4,465.00
- Bundle price
- $4,241.75
- Estimated bundle saving
- −$223.25
- Everything arrives by
- Nov 27
One freight booking, one delivery window, one crew. Inside Delivery & Assembly available on the whole bundle.