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.
- Exmark Radius E-Series (RDE 54 in) — commercial: daily paid use and high acreage; 54-inch deck; gas powered
- Kubota ZG227A-54 — commercial: daily paid use and high acreage; 54-inch deck; gas powered
What’s different? The 3 differences that matter most, from the published figures.
- Radius E-Series (RDE 54 in) uses a Kawasaki FR691 engine; ZG227A-54 uses a Kubota KGZ770-E2-MA2 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.
- Radius E-Series (RDE 54 in) has a 23 hp engine; ZG227A-54 has a 27 hp engine, a 4 hp difference. Published horsepower is the maker's rating at a stated engine speed. It is a different measure from displacement, and two engines of equal rating can pull differently.
- Radius E-Series (RDE 54 in) has a published top speed of 8 mph; ZG227A-54 has a published top speed of 9 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
- Radius E-Series (RDE 54 in) works out to 3.5 acres/hour; ZG227A-54 works out to 3.9 acres/hour, a 0.4 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 Radius E-Series (RDE 54 in).
- Weight: not published for Radius E-Series (RDE 54 in).
- Transmission: not published for Radius E-Series (RDE 54 in).
- Fuel Type: not published for Radius E-Series (RDE 54 in).
- Drive System: not published for Radius E-Series (RDE 54 in).
- Cut height range: not published for ZG227A-54.
- Price: ZG227A-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 | Radius E-Series (RDE 54 in) Exmark · Commercial |
ZG227A-54 Kubota · Commercial |
|---|---|---|
| List price | $6,999 | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki FR691 | Kubota KGZ770-E2-MA2 |
| Displacement | — | 46.9 ci (768 cc) |
| Engine Power | 23 hp | 27 hp |
| Fuel Type | — | Gasoline |
| Deck | ||
| Cutting Width | 54 in (1372 mm) | 54 in (1372 mm) |
| Min Cut Height | 1.5 in (38 mm) | — |
| Max Cut Height | 5 in (127 mm) | — |
| Drive | ||
| Transmission | — | Kubota HST |
| Ground Speed | 8 mph | 9 mph |
| Drive System | — | Shaft |
| Dimensions | ||
| Weight | — | 1199 lbs (544 kg) |
| Fuel Capacity | 7 gal (26.5 L) | 7.1 gal (27 L) |
Where these models differ, explained
Radius E-Series (RDE 54 in): Specs verified against the manufacturer spec sheet on Jun 6, 2026 — exmark.com.
ZG227A-54: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.