Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Altoz TRX 561 i — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Altoz TRX 354 — commercial: daily paid use and high acreage; 54-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- TRX 561 i has a Fabricated Steel All-Terrain Deck or Aero Deck deck; TRX 354 has a Fabricated Steel Aero Deck deck.
- TRX 561 i cuts from 3 in (76 mm) to 7 in (178 mm); TRX 354 cuts from 2.2 in (57 mm) to 5 in (127 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
- TRX 561 i holds 14 gal (53 L) of fuel; TRX 354 holds 10 gal (37.9 L) of fuel, a 4 gal difference. Tank size bounds how long a machine runs between stops. Consumption varies with engine, load and speed, so hours per tank are not fixed.
- TRX 561 i has a 29.5 hp engine; TRX 354 has a 24 hp engine, a 5.5 hp difference. Published horsepower is the maker's rating at a stated engine speed. It is a different measure from displacement, and two engines of equal rating can pull differently.
- TRX 561 i weighs 1,540 lbs (698.5 kg); TRX 354 weighs 1,220 lbs (553.4 kg), a 320 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What TRX 561 i's weight means for a trailer ›
4 more differences, calculated figures
Other verified differences
- TRX 561 i has 6 blades; TRX 354 has 3 blades.
- TRX 561 i has a 61 in (1,549 mm) deck; TRX 354 has a 54 in (1,372 mm) deck, a 7 in difference.
- TRX 561 i has a 52 ci (852 cc) engine; TRX 354 has a 44.3 ci (726 cc) engine, a 7.7 ci difference.
- TRX 561 i has a published top speed of 9 mph; TRX 354 has a published top speed of 8 mph, a 1 mph difference.
Calculated by MowerFacts
- TRX 561 i works out to 4.4 acres/hour; TRX 354 works out to 3.5 acres/hour, a 0.9 acres/hour difference. Calculated by MowerFacts from deck width and the published top speed at 80% efficiency; it is not a manufacturer figure, and real mowing is slower.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | TRX 561 i Altoz · Commercial |
TRX 354 Altoz · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki | Kawasaki |
| Displacement | 52 ci (852 cc) | 44.3 ci (726 cc) |
| Engine Power | 29.5 hp | 24 hp |
| Cylinders | 2 | 2 |
| Engine Model | FX EFI | FT |
| Fuel Type | Gasoline | Gasoline |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 54 in (1372 mm) |
| Blades | 6 | 3 |
| Deck Material | Fabricated Steel All-Terrain Deck or Aero Deck | Fabricated Steel Aero Deck |
| Anti-Scalp Rollers | No | Yes |
| Min Cut Height | 3 in (76 mm) | 2.2 in (57 mm) |
| Blade Tip Speed | 18501 ft/min (5639 m/min) | 18501 ft/min (5639 m/min) |
| Max Cut Height | 7 in (178 mm) | 5 in (127 mm) |
| Drive | ||
| Transmission | Hydrostatic | Hydrostatic |
| Ground Speed | 9 mph | 8 mph |
| Dimensions | ||
| Weight | 1540 lbs (698.5 kg) | 1220 lbs (553.4 kg) |
| Fuel Capacity | 14 gal (53 L) | 10 gal (37.9 L) |
| Length | 93 in (2362 mm) | 84.5 in (2146 mm) |
| General | ||
| Warranty | 3 yr | 3 yr |
Where these models differ, explained
TRX 561 i: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — altoz.com.
TRX 354: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — altoz.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.