The gap between them is about room, maintenance, and how fast you want to change resistance. Here is what separates these machines.
Plate-Loaded Vs. Selectorized: Which Resistance System Fits Your Gym?
Plate-loaded machines cost less and take less floor space, but you load every plate by hand; selectorized machines change weight with a pin and cost several times more.
Olympic plates need an optional adapter sleeve on the GCEC340B, and neither ships with plates or collars unless the listing says otherwise — a hidden cost worth pricing first.
The DLEC is built as a modular piece for ProDual three- and four-stack systems, not a standalone buy.
| Machine | Listed Price | Footprint (in) |
|---|---|---|
| GLCE365B Leg Extension Curl | $870 | 74 × 27 × 31 |
| GCEC340B CAM Leg Extension Curl | $955 | 49 × 42 × 47 |
| LVLC Leverage Leg Curl | $985.50 | 74 × 46 × 26 |
| LVLE Leverage Leg Extension | $1,500 | 68 × 47 × 40 |
| GCEC-STK Pro Select CAM | $2,315–$2,545 | 54 × 54 × 71 |
| DLEC ProDual Leg Extension Curl | $4,810–$5,025 | 46 × 66 × 62 |
To see how these units stack up once assembled and used, our tested leg extension and curl machine roundup walks through the practical differences.
How Much Room Does The Machine Really Need?
Measure the full working zone, not just the frame — moving arms, plate loading, and your body position all need clear space.
Ceiling height trips up more buyers than width. That 71-inch selectorized frame needs clearance above it for assembly and safe operation, and a low basement beam will not negotiate. Heavy ProDual machines are also hard to move upstairs once assembled, so decide their home before they arrive.
What Adjustment Features Should You Prioritize?
Buy for fit, not features — back-pad, roller, and range-of-motion adjustments let the machine match your leg length.
- Back pad: the GLCE365B offers three upright positions for extensions and two supinated positions for curls; the DLEC ProDual has a 12-position adjustable back pad.
- Rollers: an 8-inch foam roller (GLCE365B, GCEC340B) adjusts vertically and horizontally; the DLEC uses a self-adjusting 9-inch leg pad with seven settings.
- Thigh hold-down: the DLEC’s pop-pin-adjustable hold-down keeps hips from lifting during heavy extensions.
- Range of motion: the GCEC340B’s pop-pin and the GCEC-STK’s rotary adjustment let you shorten or lengthen the arc to protect your knees.
Common mistakes cluster here: setting the roller too high or low, using the wrong plate standard for the post, and starting with more resistance than your knee can control. Keep the knee aligned with the pivot, use a controlled range, and secure every adjustment pin before your first rep.
And inspect pins, bolts, rollers, upholstery, and cables before each session, not just on arrival.
Common Questions
Do these machines come with weight plates?
No. Plate-loaded models such as the GLCE365B and GCEC340B do not include plates or collars unless the listing explicitly says so. The GCEC340B uses a 1-inch weight post, so Olympic plates require an optional adapter sleeve. Budget for plates separately and confirm the sleeve requirement before ordering.
Can I use a leg extension machine and a leg curl machine separately?
Two single-purpose units cost more floor space than one dual-use machine but let you place each piece exactly where you want it.
What should I check before ordering a selectorized machine?
Both models are listed as temporarily out of stock, so verify availability too.
Sources
- Body-Solid. “GLCE365B Leg Extension Curl Machine” Source for the 74 × 27 × 31-inch footprint, 92-lb weight, $870 price, and 13–17-inch extension fit range.
- Body-Solid. “GCEC340B CAM Leg Extension Curl” Source for the $955 price, 72-lb weight, 1-inch weight post, and 8-inch foam rollers.
- Body-Solid. “GCEC-STK Pro Select CAM Leg Extension Curl” Source for the 54 × 54 × 71-inch dimensions, 412-lb assembled weight, and 210/310-lb stack options.
- Body-Solid. “DLEC ProDual Leg Extension Curl” Source for the 46 × 66 × 62-inch dimensions, 506-lb weight, and 12-position back pad.
- Body-Solid. “LVLE Leverage Leg Extension” Source for the $1,500 price and 68 × 47 × 40-inch footprint.