Concept2 RowErg vs AssaultRower Pro

Both of these are air rowers built for interval work, both run on no electricity, and neither asks for a subscription — so this is not a comparison between a good machine and a bad one. It is a comparison between the reference standard and a commercial-gym alternative that solves the one problem the reference standard has: it does not fold.

Resistance and feel

Air resistance is air resistance — a chain turns a fan, the fan self-regulates, and both machines match whatever effort you put in with no ceiling. The Concept2 uses a spiral damper and the PM5 monitor; the AssaultRower Pro uses a dual chain-and-belt drive built for the abuse of repeated maximal efforts. In feel they are closer to each other than either is to a magnetic rower. What separates them is not the stroke.

The two details that decide it

Parts and capacity go to the Concept2.It publishes a 500 lb user capacity and, more importantly, a parts supply chain that still serves machines from the 1990s. When something wears out in year twelve, the part exists and fits. The AssaultRower Pro does not publish a user weight limit at all — a real gap on a heavy commercial machine — and Assault’s parts story, while backed by a serious commercial brand, is not three decades deep.

Folding goes to the Assault. The Concept2 separates into two pieces for storage but does not fold; the AssaultRower Pro folds despite its 109 lb build, which is genuinely useful if the machine has to share a room and disappear between sessions. If folding is the feature that makes the purchase possible, that is the whole argument.

Noise, space and cost

Both are long air rowers — the Concept2 is 96 inches, the AssaultRower Pro 92 — and both are the loud type, so neither belongs against a shared bedroom wall. Both sit near the top of our CrossFit roundup for exactly that reason: they are garage and box machines. Neither carries a subscription, so the five-year cost is the purchase price and the odd chain or battery, and here the Concept2’s parts availability quietly wins again — a repairable machine is a cheaper machine over a decade.

Which to buy

For almost everyone, the Concept2, on the strength of the parts chain and the published capacity. Choose the AssaultRower Pro if — and only if — you specifically need a commercial air rower that folds, and you are comfortable without a published weight limit. The AssaultRower Pro review is here and the Concept2 review is here.