Compare Mowers
Prices are the recommended retail prices published by each manufacturer’s Australian site, in AUD, as read on the date shown on each model’s page; dealers set the final price.
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.
- Kubota Z422KW-54 — prosumer: larger home properties and light acreage; 54-inch deck; gas powered
- Bad Boy Mowers 2026 ZT Avenger — prosumer: larger home properties and light acreage; 54-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Z422KW-54 has a published top speed of 9.9 mph; 2026 ZT Avenger has a published top speed of 7 mph, a 2.9 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- Z422KW-54 has Side discharge discharge; 2026 ZT Avenger has Flexible Rubber Side Discharge discharge.
- Z422KW-54 weighs 400 kg (882 lbs); 2026 ZT Avenger weighs 338 kg (745 lbs), a 62 kg difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Z422KW-54's weight means for a trailer ›
- Z422KW-54 cuts from 38 mm (1.5 in) to 127 mm (5 in); 2026 ZT Avenger cuts from 38 mm (1.5 in) to 114 mm (4.5 in). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
- Z422KW-54 holds 25.7 L (6.8 gal) of fuel; 2026 ZT Avenger holds 22.7 L (6 gal) of fuel, a 3 L 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
- Z422KW-54 has a 24 hp engine; 2026 ZT Avenger has a 23 hp engine, a 1 hp difference.
Calculated by MowerFacts
- Z422KW-54 works out to 1.76 ha/hour; 2026 ZT Avenger works out to 1.24 ha/hour, a 0.52 ha/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 Z422KW-54.
- Bagger Capacity: not published for 2026 ZT Avenger.
- Blades: not published for 2026 ZT Avenger.
- Engine Make: not published for 2026 ZT Avenger.
- Fuel Type: not published for 2026 ZT Avenger.
- Deck Construction: not published for Z422KW-54.
- Drive System: not published for 2026 ZT Avenger.
- Price: Z422KW-54 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 | Z422KW-54 Kubota · Zero-Turn |
2026 ZT Avenger Bad Boy Mowers · Zero-Turn |
|---|---|---|
| RRP (AUD) | dealer quote | A$11,935–A$12,595 |
| Engine | ||
| Power Source | gas | gas |
| Displacement | 44.3 ci (726 cc) | 44.3 ci (726 cc) |
| Engine Power | 24 hp | 23 hp |
| Engine Make | Kawasaki GH7301V | — |
| Fuel Type | Petrol | — |
| Cylinders | 2 | — |
| Deck | ||
| Cutting Width | 54 in (1372 mm) | 54 in (1372 mm) |
| Blades | 3 | — |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Max Cut Height | 5 in (127 mm) | 4.5 in (114 mm) |
| Deck Construction | — | 7 Gauge/4.55mm |
| Blade Tip Speed | 18701 ft/min (5700 m/min) | — |
| Discharge | Side discharge | Flexible Rubber Side Discharge |
| Drive | ||
| Transmission | 2-HST w/Gear reduction | Dual Hydro-Gear 2800 Series Integrated Drive Systems |
| Ground Speed | 9.9 mph | 7 mph |
| Drive Tire Size | 24×9.5-14 | 12x6-6 Smooth |
| Reverse Speed | 5 mph | — |
| Drive System | Adjustable Dual Lever Steering | — |
| Dimensions | ||
| Weight | 882 lbs (400 kg) | 745 lbs (338 kg) |
| Fuel Capacity | 6.8 gal (25.7 L) | 6 gal (22.7 L) |
| Length | 80.9 in (2055 mm) | 74.5 in (1892 mm) |
| Width | 67.3 in (1710 mm) | — |
| Height | 69.8 in (1772 mm) | 46 in (1168 mm) |
| General | ||
| Warranty | — | 2 yr |
| Bagger Capacity | 7.1 bu (250 L) | — |
Where these models differ, explained
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.