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 XP 610 SSi — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Cub Cadet PRO X 660 EFI — commercial: daily paid use and high acreage; 60-inch deck; gas powered
What’s different? The 3 differences that matter most, from the published figures.
- XP 610 SSi holds 14 gal (53 L) of fuel; PRO X 660 EFI holds 7.5 gal (28.4 L) of fuel, a 6.5 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.
- XP 610 SSi has a Aero Deck deck; PRO X 660 EFI has a 10-gauge steel deck.
- XP 610 SSi has a published top speed of 11 mph; PRO X 660 EFI has a published top speed of 10 mph, a 1 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
calculated figures and what isn’t comparable
Calculated by MowerFacts
- XP 610 SSi works out to 5.4 acres/hour; PRO X 660 EFI works out to 4.8 acres/hour, a 0.6 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
- Weight: not published for XP 610 SSi.
- Warranty: not published for PRO X 660 EFI.
- Deck Construction: not published for XP 610 SSi.
- Start Type: not published for XP 610 SSi.
- Cut height range: not published for PRO X 660 EFI.
- Price: XP 610 SSi is dealer quote only.
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 | XP 610 SSi Altoz · Commercial |
PRO X 660 EFI Cub Cadet · Commercial |
|---|---|---|
| List price | dealer quote | $12,799 |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki | Kawasaki® |
| Displacement | 50.2 ci (822 cc) | 50.2 ci (822 cc) |
| Engine Power | 34.5 hp | 34.5 hp |
| Cylinders | 2 | 2 |
| Engine Model | FX EVO EFI | FX Series EFI |
| Start Type | — | Ignition Key |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 60 in (1524 mm) |
| Blades | 3 | 3 |
| Deck Material | Aero Deck | 10-gauge steel |
| Deck Construction | — | 10 ga shell w/ 7 ga top & bottom reinforcement |
| Deck Gauge | — | 10 |
| Anti-Scalp Rollers | Yes | — |
| Min Cut Height | 1.5 in (38 mm) | — |
| Blade Tip Speed | 18501 ft/min (5639 m/min) | — |
| Max Cut Height | 5 in (127 mm) | — |
| Drive | ||
| Transmission | Hydrostatic | 12cc Hydro-Gear® pumps / 240cc Parker® wheel motors |
| Ground Speed | 11 mph | 10 mph |
| Drive Tire Size | 24" | — |
| Reverse Speed | — | 5 mph |
| Dimensions | ||
| Weight | — | 1115 lbs (505.8 kg) |
| Fuel Capacity | 14 gal (53 L) | 7.5 gal (28.4 L) |
| General | ||
| Warranty | 3 yr | — |
Where these models differ, explained
XP 610 SSi: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — altoz.com.
PRO X 660 EFI: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — cubcadet.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.