Spirit Fitness CSD-LELC Dual Leg Extension/Leg Curl

Yes — it's built and warrantied for full commercial use, with an 11-gauge steel frame, a fully enclosed 225 lb stack, and LOOS USA aircraft-grade cables rated for the all-day, multi-user traffic a lighter leg machine isn't.

Commercial-grade isn't a marketing word here — it's what the build is rated for and what the warranty actually covers. The CSD-LELC runs an 11-gauge steel frame, a fully enclosed 225 lb stack, and LOOS USA aircraft-grade cables, and its warranty applies in any facility type, including full commercial. That matters beyond durability: residential-grade machines typically exclude commercial use in their own fine print, which can leave a facility holding the liability if someone is hurt on under-rated equipment. Leg machines see heavy, repeated loading, so the parts that fail first on cheaper units — the roller pads, bushings, and cables — are exactly where this one is built heavier. Paying once for a machine rated for the job typically costs less over five years than replacing a residential unit and absorbing the downtime in between.

It ships free by LTL freight with a liftgate included by default, so it comes off the truck without you wrestling a heavy pallet. Professional installation is available on request.

We ship this machine free, by LTL freight, and a liftgate is included by default — so it's lowered to the ground for you rather than left as a heavy pallet you have to manage. If you have a forklift or a loading dock, just ask and we'll quote freight without the liftgate to save you the cost. It arrives disassembled on the pallet with a full illustrated manual, all tools, and hardware included; most facilities handle setup with two people. And if you'd rather not assemble it yourself, professional installation is available on request and quoted as a separate line item, so the machine can be set up and ready to use without you touching a wrench.

You come to us, not the manufacturer — Blue Sky handles the warranty claim and sources the replacement part on your behalf, so a fix doesn't turn into weeks of chasing it down yourself.

If anything ever needs a part or a repair, you deal with Blue Sky directly — we manage the warranty claim with Spirit and source the replacement for you, rather than handing you a phone number and a queue. That's deliberate: the most common frustration in this category is a machine sitting unusable while the owner waits on a part and argues over who pays the shipping, and we take that off your plate. If you'd prefer to coordinate with Spirit directly on a particular part, that's always your call — but you never have to. Keeping the machine in service is the whole point, especially on a floor where a dead station means a complaint at the front desk.

10-year frame, 5-year major moving parts, 1-year finishes, wear parts, and labor, and 6-month upholstery — a commercial warranty valid in any facility type.

This machine carries Spirit Fitness's commercial warranty, and it applies in every facility type rather than voiding the moment the machine is used commercially. Coverage runs 10 years on the frame; 5 years on the major moving components — bushings, bearings, shocks, pulleys, and guide rods; and 1 year on paint and finishes, cables, grips, the counter/timer, pull-pin, rail wheels, attachments, and labor. Upholstery is covered for 6 months. And because Blue Sky handles claims on your behalf, it's a warranty you actually use through one point of contact — not a document you end up fighting with after the fact.

It supports users up to 360 lb, and an easy-adjust seat back plus an optimized axis of rotation let a wide range of body sizes line up correctly for both leg extension and leg curl.

The leg extension/leg curl machine is rated for users up to 360 lb, which covers the full range of a typical commercial membership. Because users train both movements from the same seat, alignment matters: the easy-adjust seat back sets the hips and knees correctly, and the optimized axis of rotation keeps the knee tracking properly through both the extension and the curl. Adjustment is quick and repeatable, which keeps the machine moving on a busy floor and helps less mobile or deconditioned members get set without help. The result is a single station that fits a broad mix of heights and ability levels rather than only an average frame.

A 225 lb selectorized stack adjusts in 5 lb increments. Leg extension runs a 0.7 pulley ratio (up to ~158 lb effective) and leg curl a 0.5 ratio (up to ~113 lb).

This machine uses a 225 lb selectorized weight stack that adjusts in 5 lb increments with a standard pop-pin. The two movements are geared differently on purpose: leg extension runs a 0.7 pulley ratio, so the effective resistance reaches up to roughly 158 lb at the top of the stack, while leg curl runs a 0.5 ratio for up to roughly 113 lb. Those ranges are matched to how the quadriceps and hamstrings actually produce force, so the same stack gives usable resistance for first-timers and enough challenge for advanced lifters on both movements — without anyone adding or changing plates. The stack is fully enclosed behind translucent shrouds for safety on a busy floor.

Leg extension trains the quadriceps (front of the thigh); leg curl trains the hamstrings (back of the thigh). Together they build balanced strength across opposing muscle groups.

The leg extension/leg curl machine trains the two opposing muscle groups of the upper leg from one seat. Leg extension isolates the quadriceps — the muscles on the front of the thigh that straighten the knee — while leg curl works the hamstrings on the back of the thigh that flex it. Training both is important for balanced lower-body strength and healthy knee mechanics, which is why the pairing is a staple for general members, athletes, and rehab and pre-hab work alike. Because users move from one to the other without leaving the seat, programming both quads and hamstrings into a session is fast, and it keeps that staple available without dedicating floor space to two separate machines.

It occupies about 55.5" L × 54" W and stands 62" tall, and replaces two leg machines in roughly half the floor space.

The leg extension/leg curl machine occupies about 55.5 inches long by 54 inches wide and stands 62 inches tall. Because it trains both leg extension and leg curl from one station, it does the job of two separate machines while taking roughly half the floor space — a real consideration when every square foot of a gym floor has to earn its place. The low-profile tower keeps sightlines open across the room, which helps supervision and keeps the space from feeling crowded. For a facility deciding what to fit into a fixed footprint, that two-in-one design is often the deciding factor.