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 Dec 7estimated, may change
Remanufactured
Precor Discovery Series Leg Extension
$2,995.00
Save $2,675 (47%)
vs $5,670 new
Only 1 left in stock
Matched circuit
Part of the Precor Discovery Series Circuit: 16 pieces available. Get the whole circuit and save 5%.
See all 16 pieces
16 pieces at regular price
$36,070
Circuit price (5% off)
$34,266.50
You save $1,803.50.
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
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: Dec 7
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.
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.
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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
- Belts, cables, bearings and grips replaced as standard
- 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
- Dec 7
One freight booking, one delivery window, one crew. Inside Delivery & Assembly available on the whole bundle.