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 Rogue — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Spartan Spartan KGZ-XD — 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.
- Rogue uses a Kawasaki engine; Spartan KGZ-XD uses a Vanguard 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.
- Rogue has a 3 gauge / 6mm deck; Spartan KGZ-XD has a 6" Deep, Reinforced 7 Gauge Full-Floating Deck deck.
- Rogue holds 12.9 gal (49 L) of fuel; Spartan KGZ-XD holds 17 gal (64.3 L) of fuel, a 4.1 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.
- Rogue weighs 1,539 lbs (698 kg); Spartan KGZ-XD weighs 1,310 lbs (594.2 kg), a 229 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Rogue's weight means for a trailer ›
- Rogue cuts from 2 in (50 mm) to 6 in (152 mm); Spartan KGZ-XD cuts from 1.5 in (38 mm) to 4.8 in (121 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
2 more differences, calculated figures and what isn’t comparable
Other verified differences
- Rogue has a published top speed of 13 mph; Spartan KGZ-XD has a published top speed of 15 mph, a 2 mph difference.
- Rogue has a 38.5 hp engine; Spartan KGZ-XD has a 40 hp engine, a 1.5 hp difference.
Calculated by MowerFacts
- Rogue works out to 6.4 acres/hour; Spartan KGZ-XD works out to 7.4 acres/hour, a 1.0 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 Rogue.
- Transmission: not published for Spartan KGZ-XD.
- Deck Material: not published for Spartan KGZ-XD.
- Price: Rogue 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 | Rogue Bad Boy Mowers · Commercial |
Spartan KGZ-XD Spartan · Commercial |
|---|---|---|
| List price | dealer quote | $18,099 |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki | Vanguard |
| Displacement | 61 ci (999 cc) | 60.7 ci (994 cc) |
| Engine Power | 38.5 hp | 40 hp |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 61 in (1549 mm) |
| Deck Material | 1/4" or 3-Gauge Thick Solid Steel | — |
| Deck Construction | 3 gauge / 6mm | 6" Deep, Reinforced 7 Gauge Full-Floating Deck |
| Deck Gauge | 3 | — |
| Min Cut Height | 2 in (50 mm) | 1.5 in (38 mm) |
| Max Cut Height | 6 in (152 mm) | 4.8 in (121 mm) |
| Drive | ||
| Transmission | Hydro-Gear 16cc Pump; Parker 18ci Wheel Motors | — |
| Ground Speed | 13 mph | 15 mph |
| Drive Tire Size | 26x12-12 Reaper | 24x14-R12 Michelin Tweels� |
| Dimensions | ||
| Weight | 1539 lbs (698 kg) | 1310 lbs (594.2 kg) |
| Fuel Capacity | 12.9 gal (49 L) | 17 gal (64.3 L) |
| Length | 92 in (2336 mm) | 84 in (2134 mm) |
| Height | 53 in (1346 mm) | 75 in (1905 mm) |
| Commercial / Pro | ||
| Frame Construction | — | 1.5" by 3" Powder Coated Fusion-Bonded Solid Steel Bridge Frame |
| Seat Type | — | Supreme Custom Blackout Seat - Adjustable TecsPak Elastomer supports - 360 degree floating seat platform |
| General | ||
| Warranty | — | 3 yr |
Where these models differ, explained
Rogue: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — badboycountry.com.
Spartan KGZ-XD: 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.