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.
- John Deere X730 Signature Series Lawn Tractor — prosumer: larger home properties and light acreage; 48-inch deck; gas powered
- Kubota GR2020G — commercial: daily paid use and high acreage; 48-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- X730 Signature Series Lawn Tractor has a K90 hydrostatic integrated with transaxle transmission; GR2020G has a Kubota HST transmission. The transmission grade tracks duty rating and speed. Grade names are each maker's own and are not comparable across brands.
- X730 Signature Series Lawn Tractor has a published top speed of 8.5 mph; GR2020G has a published top speed of 6.2 mph, a 2.3 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- X730 Signature Series Lawn Tractor has Hydraulic clutch, shaft drive; GR2020G has Belt drive.
- X730 Signature Series Lawn Tractor has a 25.5 hp engine; GR2020G has a 20.5 hp engine, a 5 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.
- X730 Signature Series Lawn Tractor holds 5.2 gal (19.7 L) of fuel; GR2020G holds 4.2 gal (15.9 L) of fuel, a 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.
2 more differences, calculated figures and what isn’t comparable
Other verified differences
- X730 Signature Series Lawn Tractor has a 45.5 ci (745 cc) engine; GR2020G has a 38.1 ci (624 cc) engine, a 7.4 ci difference.
- X730 Signature Series Lawn Tractor weighs 858 lbs (389 kg); GR2020G weighs 882 lbs (400.1 kg), a 24 lbs difference.
Calculated by MowerFacts
- X730 Signature Series Lawn Tractor works out to 3.3 acres/hour; GR2020G works out to 2.4 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
- Warranty: not published for GR2020G.
- Bagger Capacity: not published for GR2020G.
- Engine Make: not published for X730 Signature Series Lawn Tractor.
- Deck Construction: not published for GR2020G.
- Discharge: not published for GR2020G.
- Cut height range: not published for GR2020G.
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 | X730 Signature Series Lawn Tractor John Deere · Riding (Lawn Tractor) |
GR2020G Kubota · Riding (Lawn Tractor) |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Displacement | 45.5 ci (745 cc) | 38.1 ci (624 cc) |
| Engine Power | 25.5 hp | 20.5 hp |
| Engine Make | — | Kohler CH640 |
| Cylinders | 2 | — |
| Engine Model | FD750D EFI | — |
| Fuel Type | Gasoline | Gasoline |
| Deck | ||
| Cutting Width | 48 in (1219 mm) | 48 in (1219 mm) |
| Min Cut Height | 1 in (25 mm) | — |
| Max Cut Height | 5.2 in (133 mm) | — |
| Deck Material | 48A, 10 gauge0.135 in.3.4 mm54 HC and 60 HC, 9 gauge0.150 in.3.8 mm | 10 Gauge Steel |
| Deck Construction | Forged steel deck shell | — |
| Deck Gauge | 10 | 10 |
| Discharge | Side discharge | — |
| Drive | ||
| Transmission | K90 hydrostatic integrated with transaxle | Kubota HST |
| Ground Speed | 8.5 mph | 6.2 mph |
| Drive Tire Size | 26x12-12 turf | — |
| Reverse Speed | 6 mph | — |
| Drive System | Hydraulic clutch, shaft | Belt |
| Dimensions | ||
| Weight | 858 lbs (389 kg) | 882 lbs (400.1 kg) |
| Fuel Capacity | 5.2 gal (19.7 L) | 4.2 gal (15.9 L) |
| Length | 75 in (1905 mm) | — |
| Height | 54.5 in (1384 mm) | — |
| Commercial / Pro | ||
| Frame Construction | Welded heavy-duty | — |
| Seat Type | Two-piece adjustable seat with brand embroidery | — |
| General | ||
| Warranty | 4 yr | — |
| Bagger Capacity | 19 bu (670 L) | — |
Where these models differ, explained
X730 Signature Series Lawn Tractor: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.com.
GR2020G: 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.