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.
- Bad Boy Mowers ZT Avenger — commercial: daily paid use and high acreage; 54-inch deck; gas powered
- Spartan Spartan RZ-XD Blackout — 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.
- ZT Avenger uses a Kohler engine; Spartan RZ-XD Blackout uses a Kawasaki engine. The engine maker builds the engine; the mower maker chooses the model, rating and fit, so the badge alone does not settle output or longevity.
- ZT Avenger has a 7 Gauge / 4.5mm deck; Spartan RZ-XD Blackout has a 5" Deep, Reinforced 7 Gauge Full-Floating Deck deck.
- ZT Avenger has a published top speed of 7 mph; Spartan RZ-XD Blackout has a published top speed of 9 mph, a 2 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- ZT Avenger weighs 745 lbs (338 kg); Spartan RZ-XD Blackout weighs 907 lbs (411.4 kg), a 162 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What ZT Avenger's weight means for a trailer ›
- ZT Avenger holds 7.8 gal (29.5 L) of fuel; Spartan RZ-XD Blackout holds 9.5 gal (36 L) of fuel, a 1.7 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.
1 more difference, calculated figures and what isn’t comparable
Other verified differences
- ZT Avenger cuts from 1.5 in (38 mm) to 4.5 in (114 mm); Spartan RZ-XD Blackout cuts from 1.5 in (38 mm) to 4.8 in (121 mm).
Calculated by MowerFacts
- ZT Avenger works out to 3.1 acres/hour; Spartan RZ-XD Blackout works out to 3.9 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.
Not comparable
- Displacement: not published for Spartan RZ-XD Blackout.
- Warranty: not published for ZT Avenger.
- Transmission: not published for Spartan RZ-XD Blackout.
- Deck Material: not published for Spartan RZ-XD Blackout.
- Price: ZT Avenger 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 | ZT Avenger Bad Boy Mowers · Zero-Turn |
Spartan RZ-XD Blackout Spartan · Zero-Turn |
|---|---|---|
| List price | dealer quote | $10,799 |
| Engine | ||
| Power Source | gas | gas |
| Displacement | 45.6 ci (747 cc) | — |
| Engine Power | 26 hp | 25.5 hp |
| Engine Make | Kohler | Kawasaki |
| Deck | ||
| Cutting Width | 54 in (1372 mm) | 54 in (1372 mm) |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Max Cut Height | 4.5 in (114 mm) | 4.8 in (121 mm) |
| Deck Material | 3/16" or 7-Gauge Thick Solid Steel | — |
| Deck Construction | 7 Gauge / 4.5mm | 5" Deep, Reinforced 7 Gauge Full-Floating Deck |
| Deck Gauge | 7 | — |
| Drive | ||
| Transmission | Dual Hydro Gear 2800 | — |
| Ground Speed | 7 mph | 9 mph |
| Drive Tire Size | 20x12-10 Turf | 24x12-12 Reaper |
| Dimensions | ||
| Weight | 745 lbs (338 kg) | 907 lbs (411.4 kg) |
| Fuel Capacity | 7.8 gal (29.5 L) | 9.5 gal (36 L) |
| Length | 74.5 in (1892 mm) | 84 in (2134 mm) |
| Height | 46 in (1168 mm) | 75 in (1905 mm) |
| Commercial / Pro | ||
| Frame Construction | — | 1.5" by 3" Powder Coated Fusion-Bonded Solid Steel Bridge Frame |
| Seat Type | — | Blackout Dymetrol Seat with 360 Degree Floating Seat Platform |
| General | ||
| Warranty | — | 3 yr |
Where these models differ, explained
ZT Avenger: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — badboycountry.com.
Spartan RZ-XD Blackout: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — joinspartannation.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.