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.
- Wright Stander ZK 61 FX820 — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Altoz XC 610 SSi — commercial: daily paid use and high acreage; 61-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Stander ZK 61 FX820 has a published top speed of 12.5 mph; XC 610 SSi has a published top speed of 19 mph, a 6.5 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- Stander ZK 61 FX820 has a 7 Gauge deck; XC 610 SSi has a Fabricated Steel deck.
- Stander ZK 61 FX820 weighs 1,160 lbs (526.2 kg); XC 610 SSi weighs 1,400 lbs (635 kg), a 240 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Stander ZK 61 FX820's weight means for a trailer ›
- Stander ZK 61 FX820 has a 50.2 ci (822 cc) engine; XC 610 SSi has a 61 ci (999 cc) engine, a 10.8 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
- Stander ZK 61 FX820 cuts from 1.5 in (38 mm) to 5.5 in (140 mm); XC 610 SSi cuts from 1.5 in (38 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.
1 more difference, calculated figures and what isn’t comparable
Other verified differences
- Stander ZK 61 FX820 holds 15.5 gal (58.7 L) of fuel; XC 610 SSi holds 14 gal (53 L) of fuel, a 1.5 gal difference.
Calculated by MowerFacts
- Stander ZK 61 FX820 works out to 6.2 acres/hour; XC 610 SSi works out to 9.4 acres/hour, a 3.2 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.
Not comparable
- Warranty: not published for Stander ZK 61 FX820.
- Deck Construction: not published for XC 610 SSi.
- Start Type: not published for XC 610 SSi.
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 | Stander ZK 61 FX820 Wright · Commercial |
XC 610 SSi Altoz · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki | Kawasaki |
| Displacement | 50.2 ci (822 cc) | 61 ci (999 cc) |
| Engine Power | 34.5 hp | 35 hp |
| Cylinders | — | 2 |
| Engine Model | FX820 | FX1000V EFI |
| Fuel Type | Gasoline | Gasoline |
| Start Type | Electric | — |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 61 in (1549 mm) |
| Blades | 3 | 3 |
| Deck Material | 7 Gauge | Fabricated Steel |
| Deck Construction | Floating-side discharge | — |
| Deck Gauge | 7 | — |
| Anti-Scalp Rollers | — | No |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Blade Tip Speed | — | 18501 ft/min (5639 m/min) |
| Max Cut Height | 5.5 in (140 mm) | 5 in (127 mm) |
| Drive | ||
| Transmission | Hydro | Hydrostatic |
| Ground Speed | 12.5 mph | 19 mph |
| Drive Tire Size | — | 26" |
| Reverse Speed | 7 mph | — |
| Dimensions | ||
| Weight | 1160 lbs (526.2 kg) | 1400 lbs (635 kg) |
| Fuel Capacity | 15.5 gal (58.7 L) | 14 gal (53 L) |
| Length | 70 in (1778 mm) | 85.5 in (2172 mm) |
| General | ||
| Warranty | — | 3 yr |
Where these models differ, explained
Stander ZK 61 FX820: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kawasakienginesusa.com.
XC 610 SSi: 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.