RitFit M2 accessories are not interchangeable across the M2 line, because the M2 is a four variant series rather than a single machine. This guide maps each M2 specific attachment to the variants it is documented to fit, so you can order once and get it right.
You also get the two SKUs almost nobody covers, the LEM2 and the LPM2, plus a buying order based on the movements each one unlocks. Where RitFit publishes no variant fit claim, this guide says so instead of guessing.
Quick Answer: RitFit M2 accessories fit by variant rather than by brand name, so the LEM2 and LPM2 are listed for 60x60 mm M2 uprights while the WSM2 286 lb stack set is listed for M2 and M2 3D only. The LAM2 and ASM2 each carry their own compatibility page, so measure your uprights before ordering.
Key Takeaways
- Variant first: The M2 line runs as four configurations, M2, M2 3D, M2 Pro and M2 Pro 3D, and RitFit lists its M2 only attachments against 60x60 mm uprights rather than against one variant.
- Stack or plate: RitFit lists the WSM2 286 lb weight stack set for M2 and M2 3D only, because M2 Pro and M2 Pro 3D already ship with built-in dual weight stacks.
- Two under covered SKUs: The LEM2 Leg Extension Rack Attachment and the LPM2 High Row Pulldown Attachment are the M2 add-ons with the least published detail, listed at $319.99 and $69.99.
- Hole diameter matters: One reviewer reports that the M2 front uprights use a non-standard hole diameter for the cable trolley pins, so standard 1 inch attachments fit the rear uprights instead.
- Buy in movement order: Add the attachment that unlocks training you cannot already do, not the one carrying the lowest price tag.
Which M2 Variant Do You Own, and Why Does It Change What Fits?
The M2 series runs in four configurations, and your variant decides how the cables load and how the bar travels. The base platform is the RitFit M2 Multi-Functional Modular Home Gym Smith Machine, and every configuration shares the same published frame specification.
- Base M2: a plate loaded cable rack paired with the standard fixed path Smith machine.
- M2 3D: three dimensional guided bar movement with a plate loaded cable system, aimed at lifters who already own Olympic plates.
- M2 Pro: vertical guided bar movement with built in dual weight stacks, for faster cable weight changes.
- M2 Pro 3D: both the 3D bar and the built in dual stacks, which RitFit calls the most complete package in the lineup.
The two traits that separate these four are bar path and cable loading, not upright size. That is why an attachment can be correct for your machine and still be listed under a different variant name, and why the fit question is worth checking before you add to cart.
- Included in the box: One independent reviewer lists dip bars, a landmine, a T-bar row attachment, a foot bar, two barbell clamps, four resistance band pegs, two D handles, a straight bar, a lat pulldown bar, J-hooks and spotter arms.
- What that means for upgrades: the basics are already covered, so the M2 only SKUs are the ones that actually add a new movement.
- Where the line sits: compare the RitFit smith machines and racks if you have not chosen a platform yet.
The short version is that base M2 and M2 3D owners are buying cable resistance, while M2 Pro and M2 Pro 3D owners are buying attachments that use resistance they already have.
"The M2 3D PRO is everything I need to achieve my fitness goals. I couldn't be happier with it! Assembly was straightforward, and the instructions were clear and detailed. Although the manual recommends two people for assembly, I was able to put it together by myself without any problems."
Anda D. Verified Buyer, RitFit M2 SERIES Multi-Functional Modular Home Gym Package
Do M2 Attachments Fit Every M2 Variant?
No, M2 attachments do not fit every M2 variant, and RitFit's own product pages are the only reliable check. Only one M2 accessory carries an explicit two variant claim, and every other M2 only listing names the upright family rather than a single configuration.
| Attachment | Fit claim on RitFit's product page | What it adds |
|---|---|---|
| RitFit LAM2 Lever Arm Attachment | Listed for M2 | Height adjustable lever arms for press, row, curl and extension work |
| RitFit ASM2 Adjustable Integrated Leg Hold-Down with Seat | Listed for M2 | A seated leg hold-down that doubles as a chest support pad, with four leg holder heights and four seat tilt angles according to one reviewer |
| RitFit LEM2 Leg Extension Rack Attachment | Only for M2, compatibility stated as 60x60 mm uprights | Seated leg extensions plus lat pulldowns and chest supported rows |
| RitFit LPM2 High Row Pulldown Attachment | Only for M2, compatibility stated as M2 uprights | A high row and lat pulldown line that reaches up to the crossbeam |
| RitFit WSM2 Weight Stack Set 286 lbs | Listed for M2 and M2 3D | Adds a selectorized stack to a plate loaded machine |
Fit claims are taken from each RitFit product page listing at the time of writing. RitFit publishes a single M2 technical specification page covering the series rather than separate sheets per variant.
The RitFit LAM2 Lever Arm Attachment and the RitFit ASM2 Adjustable Integrated Leg Hold-Down Attachment with Seat each already have a dedicated walkthrough, so the two sections below cover the SKUs nothing else explains.
- Already documented: read what the LAM2 Lever Arm Attachment does for the M2 for the lever arm build and its press and row applications.
- Also already documented: the RitFit ASM2 Leg Hold-Down Attachment guide covers the seat geometry and lat pulldown setup in full.
- Cross platform parts: generic items such as cable handles and J-hooks are covered in the broader RitFit rack attachments range, and their upright sizing is the part that decides whether they fit an M2.
"The RitFit M2 pro is perfect for my home garage! A very easy to follow guide and set up, I'll be ordering attachments and other equipment!"
Lucious H. Verified Buyer, RitFit M2 Multi-Functional Modular Home Gym Smith Machine
What Does the LEM2 Leg Extension Rack Attachment Unlock on M2?
The LEM2 adds seated leg extensions to the M2, and RitFit lists it only for 60x60 mm M2 uprights. It is the single M2 accessory that turns quad isolation into a station on your rack instead of a separate machine.
- Movement unlocked: seated leg extensions are the primary use, and RitFit also lists lat pulldowns and chest supported rows on the same unit.
- Listed price: $319.99 at the time of writing, with the page marked as a new arrival.
- Load capacity: 330 lb of weight load and a 440 lb maximum user weight.
- Adjustment range: a 4 position seat and a 6 position roller, giving 24 seat combinations, with roller height running 7.5 to 11.4 inches and 110 degrees of swing.
- Suited to: a suggested user height range of 5'1" to 6'5", which matters in a shared household.
- How it mounts: a carabiner to cable connection that interfaces directly with the M2 machine, with no extra cable required.
One study found that adding a band loop above the knees during barbell squats increased gluteus medius activation without changing squat depth or knee kinematics.[1] The practical takeaway is that lower body accessories change what a lift trains, which is exactly the argument for having quad isolation available on the machine you already own.
Build quality is where this attachment earns its place. RitFit lists thick 60 x 60 mm steel tubing in Q235 steel with a 1.8 mm wall on the main frame, and the unit arrives pre-assembled in a single 52.9 lb box.
"Very well made! Heavy duty."
Christopher B. Verified Buyer, RitFit LEM2 Leg Extension Rack Attachment (Only for M2)
What Does the LPM2 High Row Pulldown Attachment Unlock on M2?
The LPM2 raises the cable path to the M2 crossbeam, giving you a cleaner high row and lat pulldown line. RitFit lists its compatibility simply as M2 uprights, and it mounts by screwing onto the upright post.
- Movement unlocked: high rows and lat pulldowns from a taller start position, away from the trolley.
- Listed price: $69.99 at the time of writing, the lowest cost M2 only SKU in this guide.
- Load capacity: 240 lb, with a 14.38 lb self weight.
- Footprint: 14 inches tall, 22.3 inches long and 3.1 inches wide.
- Construction: a 5 mm thick cold rolled steel plate body.
An independent reviewer of the M2 platform measured the effect of this style of attachment directly on the machine.
"Executing Lat Pulldowns without having to have your face so close to the uprights. It increases the range of motion by setting the starting position to be approximately 8 inches taller than if you were using the functional trainer without this product."
Design. Build. Lift. Home Gym Equipment Reviewer, Design Build Lift, RitFit M2 All-In-One Rack with 3D Smith Machine Review
That 8 inch start position difference is the whole case for the part. If your current lat pulldown setup forces you to reach down or lean forward, this is the cheapest fix RitFit sells for an M2.
"I love the lat pull down. The only change I would make is a rounded cutout so the cable trolley could be raised one more hole up the upright and still swivel. Other than that it's amazing."
Don H. Verified Buyer, RitFit LPM2 High Row Pulldown Attachment (Only for M2)
M2 or M2 3D: Is the WSM2 286 lb Weight Stack Set Worth Adding?
The set is worth adding only if you own a plate loaded M2 or M2 3D. RitFit lists the RitFit WSM2 Weight Stack Set 286 lbs for those two variants only, because the Pro models already ship with built in stacks.
- What you are buying: a selectorized stack set totalling 286 lb, listed for M2 and M2 3D, which are the plate loaded configurations.
- Effective resistance: the M2 runs a 2:1 cable pulley ratio, and one reviewer puts the Pro model at dual 143 lb stacks, so roughly 71 lb per side reaches the handle.
- Keeping the plate option: the cable trolleys also carry plate loaded weight horns, so you can add plates beyond what the stack provides.
- Loading rule: the same reviewer notes that loading one horn per side unevenly was enough to shift the stack off center, so load both horns evenly.
- Who should skip it: M2 Pro and M2 Pro 3D owners, whose machines already include dual built in stacks.
A 2025 review of resistance training injuries identifies improper technique and excessive loading as key contributing factors, and recommends managing progressive overload rather than adding load abruptly.[2] That is the practical argument for a selectorized stack, because small jumps make progressive loading easier to manage than sliding plates around.
Compare the full configuration differences in the M2 3D vs M2 Pro vs M2 Pro 3D package comparison, or price the whole setup as a RitFit M2 SERIES Home Gym Package.
"Rack is great, easy to assemble. I went back and bought the plate stack while the plate load is good, I like the ease of use from the weight stack , if I had different plates and not bumpers it would be lot easier to throw weight on and off. I am enjoying the 3d smith as well"
dillon d. Verified Buyer, RitFit M2 SERIES Multi-Functional Modular Home Gym Package
Which Upgrades Should You Buy First, Second, and Last?
Buy in order of unlocked movement, which puts the lever arms and leg hold-down ahead of the weight stack set. The sequence below is ordered by how much new training each part adds, not by price.
| Order | Attachment | Why it lands here |
|---|---|---|
| 1 | RitFit LAM2 Lever Arm Attachment | Turns the uprights into an independent press, row and curl station, the widest movement gain of any M2 add-on |
| 2 | RitFit ASM2 Adjustable Integrated Leg Hold-Down with Seat | Fixes the seated lat pulldown and row position you use most often, and doubles as a chest support pad |
| 3 | RitFit LEM2 Leg Extension Rack Attachment | Adds quad isolation, which is the movement a rack cannot otherwise give you |
| 4 | RitFit LPM2 High Row Pulldown Attachment | Cleans up the high row and lat pulldown line for the lowest price in the M2 only range |
| 5 | RitFit WSM2 Weight Stack Set 286 lbs | Only for plate loaded owners, and only after the attachment list is finished |
Ordering is based on movements unlocked per dollar, using the published price of each RitFit SKU at the time of writing. It is not a quality ranking.
If you are still filling in the basics rather than the M2 specific parts, start with the wider list of must-have Smith machine attachments before committing to a specialty SKU.
Running total: what the full upgrade path costs over time
RitFit publishes a price for each SKU on its own product page, and promotions move those numbers, so treat any total as a snapshot. The RitFit Weight Stack Stickers are the cheapest finishing touch once the stack or the plates are in place, and spreading the five items across two or three purchases is normal in a garage gym build.
What Should You Check Before Ordering an Attachment?
Check four numbers before you buy: upright profile, front and rear upright hole diameter, hole spacing, and your plate diameter. Getting any one of them wrong is how a correct sounding attachment ends up in a returns box.
- Upright profile: RitFit lists M2 uprights at 2.36 x 2.36 x 0.08 inch, so a part built for a 2 x 2 inch rack is a different size entirely.
- Upright holes: the M2 specification lists 1 inch upright holes and a 0.39 inch fly attachment hole, which is the gap that separates main upright mounting from cable trolley mounting.
- Front versus rear: one reviewer reports that the two front uprights use a non-standard hole diameter for the trolley pins, so standard 1 inch attachments fit the rear uprights cleanly.
- Hole spacing: the same reviewer measured 16 holes at 4 inch spacing, which is what sets how finely you can position a J-hook or a lever arm.
- Plate diameter: two independent reviewers flag that 450 mm plates on the Smith machine and on the functional trainer trolley conflict, so you may have to move plates between the two.
- Cable ratio: the M2 cable system runs at a 2:1 ratio, so the load at the handle is roughly half the weight you select.
A US emergency department study found that injuries linked to mechanical home exercise equipment are common, which is the reason these checks are worth ten minutes before checkout rather than after delivery.[3] If you are unsure whether a part fits, ask RitFit directly with your variant name and upright measurement in hand.
FAQs About RitFit M2 Accessories
What fits on each RitFit M2 variant?
Not every M2 accessory fits every M2 configuration. RitFit lists the LEM2 and LPM2 with compatibility stated as 60x60 mm M2 uprights, and neither carries a claim covering all four configurations. RitFit lists the WSM2 weight stack set for M2 and M2 3D only, because M2 Pro and M2 Pro 3D already include built-in dual stacks.
Can I fit standard one inch attachments on the M2 uprights?
Check which upright first. One independent M2 reviewer reports that the two front uprights use a different hole diameter to take the functional trainer trolley pins. Ordinary one inch aftermarket attachments fit the rear uprights but not the front pair. Order for the rear uprights or confirm with RitFit before buying.
Which M2 variants exist and what changes between them?
The bar path and the cable loading method change across the four configurations. RitFit's own package guide puts M2 3D as the three dimensional guided bar with a plate loaded cable system and M2 Pro as vertical guided bar movement with built in dual weight stacks. M2 Pro 3D combines both and is the most complete package.
How much does it cost to upgrade a RitFit M2?
Prices move with promotions. At the time of writing RitFit listed the LEM2 Leg Extension Rack Attachment at $319.99 and the LPM2 High Row Pulldown Attachment at $69.99. Check each product page for the current figure, since the LAM2, ASM2 and WSM2 listings are priced separately from these two.
Can I load 450 mm plates on the M2 Smith machine and cable trolley at once?
Two independent reviewers flag a conflict here. With 450 mm plates loaded on the Smith machine and on the functional trainer trolley at the same time the plates interfere, so you move plates from one to the other. It only bites when you superset Smith movements with cable work.
Conclusion
The right RitFit M2 accessories are the ones your variant is actually documented to take, so start with the upright and the variant name, not the accessory list. Five parts cover the real gaps, and the LEM2 and LPM2 are the two worth reading about twice.
Measure your uprights, check the product page fit line, then add the attachment that unlocks the movement you cannot train today. For current offers on these parts, see the RitFit discount guide before you check out.
Disclaimer
This article provides general product and training information, not medical advice. Consult a qualified medical or fitness professional before starting a new training program or using new gym equipment.
References
1. Foley RCA, Bulbrook BD, Button DC, Holmes MWR. EFFECTS OF A BAND LOOP ON LOWER EXTREMITY MUSCLE ACTIVITY AND KINEMATICS DURING THE BARBELL SQUAT. Int J Sports Phys Ther. 2017;12(4):550-559. PMCID: PMC5534145
2. Kawa O, Zywiec W, Czyzewski B, et al. Most Common Injuries in Resistance Training: Mechanisms, Therapeutic Interventions, and Preventive Strategies. Cureus. 2025;17(10):e94035. doi:10.7759/cureus.94035. PMCID: PMC12591260
3. Graves JM, Iyer KR, Willis MM, Ebel BE, Rivara FP, Vavilala MS. Emergency department-reported injuries associated with mechanical home exercise equipment in the USA. Inj Prev. 2014;20(4):281-5. doi:10.1136/injuryprev-2013-040833. PMCID: PMC4306571
