Hoist Fitness Prone Leg Curl RS-2408

Hoist RS-2408: A Dedicated Prone Leg Curl Machine

The Hoist RS-2408 Prone Leg Curl is a pin-loaded, single-station machine that isolates the hamstrings while you lie face down. It suits commercial gyms, training studios and premium home setups that want a dedicated hamstring station rather than a shared combo frame, and it forms part of the ROC-IT selectorized line.

• Movement—prone hamstring curl
• Load type—selectorized pin stack
• Floor space — 56.75" x 42.75" (144 x 109 cm)
• Machine weight — 571 lb (259 kg)
• Assembly — two people, hand tools
• Best fit — dedicated hamstring station

What This Prone Leg Curl Machine Does

It trains knee flexion with your hips extended, which is the position that separates a prone curl from every other hamstring option. You lie face down, hook your ankles under the roller and curl. Because the torso is supported and the hips stay open, there is very little left to cheat with — the hamstrings finish the rep or the rep does not happen.

What muscles does a prone leg curl machine work? Primarily the hamstring group — biceps femoris, semitendinosus and semimembranosus — with the calves assisting lightly at the top of each curl. Prone work tends to emphasise the biceps femoris, which is why sprint and field programmes keep it in rotation even when a seated station is available.

The RS-2408 differs from a flat prone bench in one respect worth understanding before you buy. HOIST states that the frame starts the user at a more upright angle and rocks the torso downward through the rep, which the company says keeps the spine and neck aligned and opens up range of motion. That is the manufacturer's engineering claim rather than a measured result, and it is the core idea behind HOIST's commercial strength line.

If you are still deciding whether hamstrings or quads are the gap in your setup, it helps to first read how extensions and curls split the work before committing floor space to either.

The Stack Number Nobody Publishes

Every leg curl listing quotes how much the stack holds. None of them quote how far apart the plates sit — and on an isolation station, that second number is the one that governs your training.

HOIST's own parts documentation for this frame answers it: the stack is a ten-pound top weight assembly sitting on seventeen ten-pound plates. Ten pounds is the smallest jump the pin can make.

That matters more here than on a compound machine. A prone curl is single-joint work, so the loads are a fraction of what the same lifter presses or rows, which makes a ten-pound move a far larger share of the working set. The category — including buying guides for leg extension machines — sells selectorized frames on "small increments," but almost nobody publishes what the increment actually is.

Buy this frame for its load range, not for fine-grained jumps.

The optional add-on weight is the only stack change HOIST publishes for the RS-2408, and it lifts the top of the range rather than tightening the steps between pins. Order it with the machine if you want the extra headroom from day one.

Fit, Adjustment, and Floor Space

Two things decide whether this machine fits: the people using it and the room around it.

On the user side, the ankle pad slides to match leg length, and a separate range-of-motion setting decides where the curl begins. Set both before the first rep. If the roller sits too high on the calf or the start point is too shallow, the hamstring never reaches the part of the range you bought the machine for.

On the room side, the footprint above is the frame itself, not the working area. Leave clearance behind the machine so the weight cage is reachable, and leave room on the entry side so a user can climb on without turning sideways. That entry side is where the RS-2408 earns its keep in a mixed-membership room — HOIST's more upright start makes getting on and off simpler than a flat prone bench, which is the barrier that stops older, taller or stiffer members from using a lying curl at all.

How much clearance does a prone leg curl machine need? Plan for the frame plus a walkway on the entry side and a service gap at the stack. Delivery is the other half of that question, so check the delivery and returns terms against your doorway and stair access before ordering.

Facilities building out a full lower-body row can see how this station sits alongside the rest of the selectorized leg machines we carry.

Key Features

• ✅ Dedicated hamstring station, no pad swapping
• ✅ Upright start makes entry and exit easier
• ✅ Torso rocks with the rep, not against it
• ✅ Ankle pad moves to suit short or long legs
• ✅ Range-of-motion stops set where you start
• ✅ Non-slip ergo grips keep you square each rep
• ✅ Load changes take one pin, not a plate swap
• ✅ Optional add-on weight raises the stack top
• ✅ Steel frame built for daily commercial traffic
• ✅ Weight cage houses the stack and top plate
• ✅ Home and commercial service schedules published
• ✅ Ships to all 50 states from Tennessee

Full Specifications

Everything below comes from HOIST's published specification for this model and from the current HOIST warranty schedule. Where a figure is not published, we say so rather than filling the gap.

Build and adjustment

• Product height—55.00" (140 cm)
• Ankle pad positions—six
• Range-of-motion settings—four
• Hand grips — non-slip ergo pair
• Weight cage—RS-CAGE-NG

Resistance and upgrade

• Weight stack — 180 lb (82 kg)
• Optional upgrade — RS-CAGE-NG-OPT1, 5 lb
• Stack with upgrade — 185 lb (84 kg)
• Weight with upgrade — 583 lb (264 kg)

Warranty and ownership

• SKU — RS-2408
• Body and frame—10 years
• Structural moving parts — 5 years
• Bearings and pulleys — 3 years
• Finish, cables, upholstery—1 year
• Coverage — original purchaser only

HOIST warrants the machine against manufacturing defects in workmanship and materials under normal use, and reserves the right to change specifications, design and function. One point buyers should know upfront: HOIST publishes no user weight limit for this frame anywhere — not in the specification, not in the owner's manual.

Prone, Seated, or Combo?

Three routes to trained hamstrings sit on our floor, and they are not interchangeable. The seated Leg Curl RS-2402 is the same price and the same build standard, but it flexes the hips, which lengthens the hamstrings before the curl starts. Current research leans toward that lengthened position for whole-hamstring growth—an honest point most sellers leave out. The third option, the Leg Extension/Leg Curl HD-3400, trades a dedicated station for two movements on one frame.

Hoist Prone Leg Curl RS-2408

• Hamstring position—hips extended, lying
• Price—$5,226.00
• Also trains—nothing else
• Best fit—biceps femoris emphasis

Hoist Leg Curl RS-2402

• Hamstring position — hips flexed, seated
• Price—$5,226.00
• Also trains—nothing else
• Best fit — hypertrophy-first programmes

Hoist Leg Ext/Leg Curl HD-3400

• Hamstring position — seated, shared frame
• Price—$3,960.00
• Also trains — quadriceps extension
• Best fit — one station, two movements

Ready to commit to the floor space? Add the RS-2408 to your cart, or call for a private invoice quote on multiple stations.

Who This Machine Suits

Buy it if:

• You want prone curls specifically, not any curl
• You run a shared floor and want zero changeover
• Your lifters progress in ten-pound steps
• You need a station that survives daily traffic

Skip it if:

• Hamstring hypertrophy is your only goal
• One frame has to cover quads and hamstrings
• Your room cannot spare a dedicated footprint
• You need a published user weight rating

If quads are the other gap, the Leg Extension RS-2401 is the matching station in the same line.

Prone Leg Curl Machine FAQs

What tools do I need to assemble it?
A ratchet wrench with 1/2", 9/16" and 3/4" sockets, an adjustable wrench, a rubber mallet, a tape measure, a level and an SAE hex key set. HOIST specifies two people. Squareness gets checked at the end, which is why the level and tape measure are on the list.

Does the RS-2408 have to be bolted down?
Yes. HOIST's owner's manual instructs you to bolt the unit to the exercise floor using minimum 4-1/2" bolts to prevent tipping, and warns that failing to do so may result in serious injury or death. That requirement decides where the machine can live — it rules out floating floors and most temporary placements.

Is it covered for home use?
The current HOIST warranty schedule places the RS line in the commercial and light commercial columns only; the residential column covers other HOIST families. Light commercial applies to facilities that charge no membership dues and see no more than 50 users a day, such as hotels, apartment clubhouses and personal training studios.

How do I maintain it?
HOIST publishes separate home and commercial schedules covering upholstery, cables, hardware and bearings. Wipe pads down after each session, inspect cables regularly, and never use ammonia, acid-based or petroleum-based solvents on any part of the machine.

What does delivery and placement involve?
It ships as freight from our Tennessee warehouse to all 50 states. Because it arrives crated and builds on site, measure your access route first. If you are laying out a full room, we can book a gym design session and plan the floor before anything ships.

Is a machine curl enough on its own?
No. A prone curl trains knee flexion; it does not train the hip-extension half of the hamstring's job, which is what hinges and deadlifts cover. Programme it as an accessory. As with any new training programme, check with your physician first if you are returning from injury.

Build Your Hamstring Station

The RS-2408 does one job and gives it a permanent home on your floor — no pad flips, no waiting for a shared frame, no compromise between quads and hamstrings. As an authorized dealer, Hamilton Home Fitness supplies HOIST by private invoice with nationwide freight and support from a real team in Tennessee.

Request your quote today and put a proper hamstring station on the floor.

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