Every YOSUDA Rowing Machine Model, Decoded

People arrive at this question holding a number. A sticker on a secondhand machine, a line in a manual, an item code from a big-box receipt, a string in a search box like “57313 yosuda water rowing machine.” Then they go looking for that number on YOSUDA’s listings and it is not there, and the reasonable conclusion is that they are looking in the wrong place.

They are not. The number is usually not YOSUDA’s.Retailers assign their own item numbers, and a five-digit figure like 57313 is the shape of a store SKU rather than anything a manufacturer prints. YOSUDA’s own model codes look like US-181, RM-185, RM-187 and R2— and on 3 November 2026 we read all nine YOSUDA rowers live in the Amazon catalog and found that three of them publish no model code at all.

So this page does two things. It gives you the model codes YOSUDA actually publishes, with the dimensions attached to each, so you can identify a machine from a photograph or a tape measure instead of a sticker. And it tells you which YOSUDA to buy, which is a shorter answer than the nine listings suggest, because several of them are the same machine.

1. The model codes YOSUDA publishes

Every figure in this table was read from the model, part-number, dimension and weight fields of YOSUDA’s own Amazon listings on 3 November 2026. Where a cell is empty it is empty on YOSUDA’s listing, not on ours.

Read the table twice and two things jump out, and both of them are worth money.

2. US-181 and RM-181-2 are the same machine, ten dollars apart

Two separate YOSUDA listings, two different published model codes, and identical published dimensions and identical published weight: 57.88 x 17.72 x 24.81 inches, 43 pounds, 16 magnetic levels. On the day we read them the US-181 was the cheaper of the two, by a margin smaller than a seat cushion costs. We cannot tell you they are mechanically identical, because YOSUDA does not publish a parts list — but on every figure YOSUDA does publish, they are the same rower.

The practical instruction is simple: if you are buying the small 57.9-inch YOSUDA, open both listings and buy whichever is cheaper that day. Do not assume the higher-numbered code is newer or better. That machine is the one in our YOSUDA review, and it is a genuinely good small-room rower — 43 pounds and under five feet long is a combination almost nothing else manages.

The same pattern repeats higher up the range. The listing YOSUDA sells as the PRO publishes no model code, and the RM-187listing publishes the same 72.45 x 20.08 x 34.05 inches and the same 59.53 pounds at the same price. Here YOSUDA’s own feature text disagrees with itself across the two: the PRO listing says a 16 lb flywheel and a “53-inch inseam” fit, and the RM-187 listing says a 15 lb flywheel, a 52.8-inch aluminum rail, 400 lb capacity and fit to 6 ft 7 in. Those are small differences and they may be real, or they may be two copywriters describing one machine. We publish both and flag the conflict rather than picking the flattering number.

3. The three listings with no model number are the ones people search for

This is the irony at the center of the whole problem. The YOSUDA machines that generate number-shaped searches — the wooden water rower, in particular — are exactly the ones with no published model code. YOSUDA identifies its water rower by tank size, selling it as the “CLASSIC-22L Tank” variant, and it identifies one of its wooden magnetic rowers by nothing at all.

So if you are holding a number for a YOSUDA water rower, assume it came from a retailer or a manual and identify the machine by shape instead. The water rower is the only YOSUDA with a tank, it is 73.6 inches long, it weighs 55 pounds, and it publishes a 400 lb capacity and fit to 6 ft 6 in — the only YOSUDA that publishes a maximum user height. If your machine has a tank and those numbers, you have identified it, and the magnetic-versus-water comparison is the page about whether it was the right choice.

4. The warranty field is the least reliable thing YOSUDA publishes

Worth knowing before you buy on warranty. Across the nine listings the warranty field reads “1 Year” on five, “1 Year Manufacturer” on two, and on the water rower it reads “2 yeat” — a typo, uncorrected, in YOSUDA’s own field. Meanwhile the RM-187 listing’s feature text promises a “2-year spare parts warranty” while that same listing’s warranty field says “1 Year.”

Treat one year of parts cover as what you are actually buying from YOSUDA, because that is the figure the listings agree on most often, and read what a rowing machine warranty covers before you weigh it against a five-year frame warranty elsewhere. A brand that cannot spell “year” consistently in its own specification field is not a brand to buy on the strength of a warranty claim in body copy.

5. The lineup as a ladder, in the order it actually climbs

Forget the codes for a moment. YOSUDA’s range is four decisions, and this is the only one of them that matters: how long is the rail, and what makes the resistance?

The small magnetic (57.9 in, 43 lb).US-181 or RM-181-2. The reason to buy a YOSUDA at all: a full sliding stroke in under five feet of floor, light enough for one person to stand upright alone. The cost is the stroke itself — a short rail limits leg extension, and YOSUDA publishes no user weight limit for it, which is a gap rather than a reassurance. Anyone much over six feet should measure before ordering.

The middle magnetic (64.6 in, 54 lb).RM-185, sold as the “upgraded version with greater resistance and longer slide rail.” Six and a half inches more rail for one step up the price ladder. If the small one does not fit you and the big one does not fit the room, this is the machine, and how rail length maps onto your height is how to check it properly.

The big magnetic (72.5 in, 59.5 lb).RM-187 or the PRO. The one with the figures: 400 lb published capacity, fit to 6 ft 7 in, an aluminum rail and a 180-degree fold. This is the YOSUDA for a household with a tall or heavy rower in it, and the 400 lb figure is the reason — see published weight limits for why that number is not interchangeable with a machine that publishes nothing.

The wooden magnetic (72.5 in, 44 lb).A wood frame around magnetic resistance, 32 levels, a published 135 cm rail and 400 lb, self-powered so there is no cord and no batteries. Buy it for how it looks in a living room, because mechanically it is a magnetic rower — and if the appeal of wood is the sound of water, this is not the machine. Best wooden rowing machines sorts the two ideas out.

The water rower (73.6 in, 55 lb). The CLASSIC-22L. A beech frame, a 22 liter tank, a 400 lb capacity, fit to 6 ft 6 in and a 180-degree fold. The only YOSUDA whose resistance rises with how hard you pull, and the cheapest route into what a water rower actually is.

The air rower (95 in, 65.5 lb).The R2, and the odd one out in every sense. It is YOSUDA’s only air machine, it is nearly eight feet long, and it publishes something no other machine on this entire site publishes: a minimum user height, 3 ft 11 in, alongside a 6 ft 10 in maximum on a 53.7-inch rail. If a child or a very short adult is going to use the machine, that published floor is a real piece of information. The caveats are that 350 lb capacity is lower than the big magnetic models, and that at this length and price the Concept2 RowErg is the machine it has to beat, which it does not.

The blanks in that table are the honest shape of this brand. YOSUDA publishes a capacity figure on its more expensive machines and leaves it off the cheapest one; it publishes a maximum user height on three models out of five; it publishes a rail length on two. None of those gaps makes the machines bad. They do mean that a YOSUDA is harder to fit-check from a listing than a Concept2 or a WaterRower, and that the fit check falls to you and a tape measure.

6. How to identify the YOSUDA you already own

If the machine is in front of you, work in this order and ignore every number you have been given.

What makes the resistance? A clear tank of water means the CLASSIC-22L water rower. A caged fan at the front means the R2 air rower. Anything else is one of the magnetic models.

How long is it, foot to monitor? About 58 inches is the small magnetic (US-181 or RM-181-2). About 65 inches is the RM-185. About 72 inches is the big magnetic (RM-187 or PRO) if the frame is steel, or the wooden magnetic if the frame is wood. About 74 inches with a tank is the water rower. About 95 inches is the R2.

Then look for the code. On YOSUDA machines that carry one it is printed on the frame label with the serial number, usually on the underside of the main beam near the stabilizer. If there is no code there, your machine is one of the three listings that never had one, and YOSUDA support will need the dimensions and the resistance type instead. Quote those, not a store SKU, and quote them in inches.

7. Which YOSUDA to buy

The lineup rewards two choices and punishes the rest. Buy the small magnetic if the room is the constraint and nobody using it is tall — it is the cheapest full sliding stroke we cover and it is the model that earned YOSUDA its reputation. Buy the water rower if you want a wooden machine and the sound of water, because at this price there is no competition for that combination. Buy the big magnetic only if the 400 lb capacity or the 6 ft 7 in fit is a requirement rather than a preference.

Skip the R2 unless its published minimum height solves a specific problem for you. And before any of it, read what the brand is and is not: MERACH versus YOSUDA and Sunny versus YOSUDA are the two comparisons that place it against the brands it shares a shelf with, and whether cheap rowing machines are any good is the broader question underneath all of this.

One caveat on all of the above, and it is the same caveat we attach to every page here: nobody at Row & Recover has rowed these machines. Every figure on this page was read from YOSUDA’s own published listing fields on 3 November 2026, the conflicts between them are quoted rather than resolved, and where YOSUDA publishes nothing the table says so.