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
Precor Discovery Series Leg Extension
$2,995.00
4.8
Save $2,675 (47%)
vs $5,670 new
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: 53" × 49" × 59" 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!
Read on Google -
2 weeks ago
★★★★★
Equipment is awesome. Delivered and setup in the garage. Will be going back for more
Read on Google -
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!
Read on Google -
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
Read on Google
Matched circuit
Part of the Precor Discovery Series Circuit: 14 pieces available. Get the whole circuit and save 5%.
See all 14 pieces
14 pieces at regular price
$31,480
Circuit price (5% off)
$29,906
You save $1,574.
The 5% comes off at checkout when you buy 5 or more pieces from this circuit together. Every piece also sells on its own at its regular price. Pick which pieces you want
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 Precor Discovery Series Leg Extension mid-remanufacture, photographed by the tech doing the work.
- Stage
- On the bench
- Photographed
- Oct 1, 2026
- Where
- Our shop in Texas
- Headed to
- Rebuilt by
- 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 Precor Discovery Series Leg Extension isolates the quads by loading knee extension on its own, with a rotating arm and shin pad that follow the knee through a full arc. Nothing from the hips or hamstrings helps, so the quadriceps carry every rep.
A gas-assisted seat lines the knee up with the machine's pivot in one motion, so users actually make the adjustment that keeps the knee comfortable. A 240 lb stack with add-on weight covers rehab through advanced lifters, making it a go-to quad builder for commercial floors and serious home gyms.
Primary muscles targeted
Rectus Femoris
Vastus Lateralis
Vastus Medialis
Secondary muscles
Vastus Intermedius
Tibialis Anterior
Key features
Gas-assisted seat
One lever moves the seat so the knee lines up with the pivot before every set.
Full-range knee extension
The arm travels from deep flexion to full lockout, loading the quads through the whole movement.
240 lb stack with add-on
A deep stack plus a 5 lb add-on weight allows small jumps between pin settings.
11-gauge welded frame
A fully welded steel frame keeps the machine solid under heavy, high-traffic use.
Specifications
Dimensions (L × W × H)
53" × 49" × 59"
1346 × 1245 × 1499 mm
Product weight
575 lb
261 kg
Weight stack
240 lb
109 kg
Resistance type
Selectorized
Pin-select weight stack
1. What are the exact dimensions and footprint of this machine?
This leg extension measures 53 inches front to back, 49 inches wide, and 59 inches high, with a footprint of 18 square feet. For comfort and access, consider allowing extra clearance around the machine.
2. What muscles does this machine target and what movement does it train?
It is designed for isolated quadriceps training, specifically targeting the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius through the knee extension movement.
3. How much weight can I load on the stack and does it allow for small increments?
The machine features a 240 lb selectorized weight stack with add-on weight micro-loading, allowing for precise progression between standard stack settings.
4. What is the condition of this equipment and what does remanufactured mean?
This is a remanufactured commercial machine, meaning it was previously owned and has been fully disassembled, cleaned, repaired, and tested in our Texas shop. Cosmetic marks from prior use may remain, but all worn parts are replaced and it is certified for quality.
5. What warranty coverage comes with this remanufactured unit?
Remanufactured machines include a 1-year parts and labor warranty from the delivery date. Extended coverage is available through BAG Care+ on the product page.
6. What delivery options are available for this machine?
You can choose Driveway Freight Delivery or Inside Delivery & Assembly at checkout. Stairs require a separate quote, and you can see your estimated freight cost using the shipping calculator 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 Precor Discovery Series Leg Extension isolates the quads by loading knee extension on its own, with a rotating arm and shin pad that follow the knee through a full arc. Nothing from the hips or hamstrings helps, so the quadriceps carry every rep.
A gas-assisted seat lines the knee up with the machine's pivot in one motion, so users actually make the adjustment that keeps the knee comfortable. A 240 lb stack with add-on weight covers rehab through advanced lifters, making it a go-to quad builder for commercial floors and serious home gyms.
Primary muscles targeted
Rectus Femoris
Vastus Lateralis
Vastus Medialis
Secondary muscles
Vastus Intermedius
Tibialis Anterior
Key features
Gas-assisted seat
One lever moves the seat so the knee lines up with the pivot before every set.
Full-range knee extension
The arm travels from deep flexion to full lockout, loading the quads through the whole movement.
240 lb stack with add-on
A deep stack plus a 5 lb add-on weight allows small jumps between pin settings.
11-gauge welded frame
A fully welded steel frame keeps the machine solid under heavy, high-traffic use.
Specifications
Dimensions (L × W × H)
53" × 49" × 59"
1346 × 1245 × 1499 mm
Product weight
575 lb
261 kg
Weight stack
240 lb
109 kg
Resistance type
Selectorized
Pin-select weight stack
1. What are the exact dimensions and footprint of this machine?
This leg extension measures 53 inches front to back, 49 inches wide, and 59 inches high, with a footprint of 18 square feet. For comfort and access, consider allowing extra clearance around the machine.
2. What muscles does this machine target and what movement does it train?
It is designed for isolated quadriceps training, specifically targeting the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius through the knee extension movement.
3. How much weight can I load on the stack and does it allow for small increments?
The machine features a 240 lb selectorized weight stack with add-on weight micro-loading, allowing for precise progression between standard stack settings.
4. What is the condition of this equipment and what does remanufactured mean?
This is a remanufactured commercial machine, meaning it was previously owned and has been fully disassembled, cleaned, repaired, and tested in our Texas shop. Cosmetic marks from prior use may remain, but all worn parts are replaced and it is certified for quality.
5. What warranty coverage comes with this remanufactured unit?
Remanufactured machines include a 1-year parts and labor warranty from the delivery date. Extended coverage is available through BAG Care+ on the product page.
6. What delivery options are available for this machine?
You can choose Driveway Freight Delivery or Inside Delivery & Assembly at checkout. Stairs require a separate quote, and you can see your estimated freight cost using the shipping calculator 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.
$2,995.00
This machine
Bundle total
- Items
- $5,565.00
- Bundle price
- $5,286.75
- Estimated bundle saving
- −$278.25
- Everything arrives by
- Nov 27
One freight booking, one delivery window, one crew. Inside Delivery & Assembly available on the whole bundle.