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 S-Series (48 in) — commercial: daily paid use and high acreage; 48-inch deck; gas powered
- Gravely Z-STANCE 48 KAWASAKI — commercial: daily paid use and high acreage; 48-inch deck; gas powered
What’s different? The 4 differences that matter most, from the published figures.
- Radius S-Series (48 in) holds 7 gal (26.5 L) of fuel; Z-STANCE 48 KAWASAKI holds 4.5 gal (17 L) of fuel, a 2.5 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.
- Radius S-Series (48 in) has a published top speed of 9 mph; Z-STANCE 48 KAWASAKI has a published top speed of 7 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.
- Radius S-Series (48 in) lists at $7,199; Z-STANCE 48 KAWASAKI lists at $8,199, a $1,000 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- Radius S-Series (48 in) has a 23 hp engine; Z-STANCE 48 KAWASAKI has a 22 hp engine, a 1 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.
calculated figures and what isn’t comparable
Calculated by MowerFacts
- Radius S-Series (48 in) works out to 3.5 acres/hour; Z-STANCE 48 KAWASAKI works out to 2.7 acres/hour, a 0.8 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 Radius S-Series (48 in).
- Fuel Type: not published for Radius S-Series (48 in).
- Deck Material: not published for Radius S-Series (48 in).
- Deck Construction: not published for Radius S-Series (48 in).
- Drive System: not published for Radius S-Series (48 in).
- Discharge: not published for Radius S-Series (48 in).
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 S-Series (48 in) Exmark · Commercial |
Z-STANCE 48 KAWASAKI Gravely · Commercial |
|---|---|---|
| List price | $7,199 | $8,199 |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki FR691 | Kawasaki® |
| Displacement | 44.3 ci (726 cc) | 44.3 ci (725.9 cc) |
| Engine Power | 23 hp | 22 hp |
| Fuel Type | — | Gas |
| Engine Model | — | FS651V |
| Deck | ||
| Cutting Width | 48 in (1219 mm) | 48 in (1219 mm) |
| Deck Material | — | 10 ga |
| Deck Construction | — | Fabricated X-Factor® 3 |
| Deck Gauge | — | 10 |
| Discharge | — | Side |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Max Cut Height | 5 in (127 mm) | 5 in (127 mm) |
| Drive | ||
| Ground Speed | 9 mph | 7 mph |
| Drive System | — | Hydro-Gear® ZT-3100® Transaxles |
| Reverse Speed | — | 3 mph |
| Dimensions | ||
| Weight | — | 744 lbs (337.5 kg) |
| Fuel Capacity | 7 gal (26.5 L) | 4.5 gal (17 L) |
Where these models differ, explained
Radius S-Series (48 in): Specs verified against the manufacturer spec sheet on Jun 6, 2026 — exmark.com.
Z-STANCE 48 KAWASAKI: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — gravely.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.