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.
- Scag SFC-21 — commercial: daily paid use and high acreage; 21-inch deck; gas powered
- Bad Boy Mowers Gas Push Mower — commercial: daily paid use and high acreage; 21-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- SFC-21 uses a Honda engine; Gas Push Mower uses a Kawasaki 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.
- SFC-21 has a GT MG 512 transmission, 3-speed transmission; Gas Push Mower has a Two Speed transmission. The transmission grade tracks duty rating and speed. Grade names are each maker's own and are not comparable across brands.
- SFC-21 holds 0.4 gal (1.4 L) of fuel; Gas Push Mower holds 0.5 gal (1.9 L) of fuel, a 0.1 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.
- SFC-21 weighs 136 lbs (61.7 kg); Gas Push Mower weighs 123 lbs (55.8 kg), a 13 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What SFC-21's weight means for a trailer ›
- SFC-21 cuts from 1.5 in (38 mm) to 4.5 in (114 mm); Gas Push Mower cuts from 1 in (25 mm) to 4.5 in (114 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
1 more difference, what isn’t comparable
Other verified differences
- SFC-21 has a 9.9 ci (163 cc) engine; Gas Push Mower has a 10.9 ci (179 cc) engine, a 1 ci difference.
Not comparable
- Engine Power: not published for Gas Push Mower.
- Ground Speed: not published for Gas Push Mower.
- Deck Material: not published for SFC-21.
- Deck Construction: not published for Gas Push Mower.
- Price: Gas Push Mower 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 | SFC-21 Scag · Push / Walk-Behind |
Gas Push Mower Bad Boy Mowers · Push / Walk-Behind |
|---|---|---|
| List price | $1,699–$2,049 | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Displacement | 9.9 ci (163 cc) | 10.9 ci (179 cc) |
| Engine Power | 4 hp | — |
| Cylinders | 1 | — |
| Engine Make | Honda | Kawasaki |
| Deck | ||
| Cutting Width | 21 in (533 mm) | 21 in (533 mm) |
| Min Cut Height | 1.5 in (38 mm) | 1 in (25 mm) |
| Max Cut Height | 4.5 in (114 mm) | 4.5 in (114 mm) |
| Deck Material | — | 14 Gauge Thick Solid Steel |
| Deck Construction | 14 gauge deck with 14-gauge replaceable guards for strength and longevity. Deep draw stamped. | — |
| Deck Gauge | — | 14 |
| Drive | ||
| Transmission | GT MG 512 transmission, 3-speed | Two Speed |
| Ground Speed | 4.2 mph | — |
| Dimensions | ||
| Weight | 136 lbs (61.7 kg) | 123 lbs (55.8 kg) |
| Fuel Capacity | 0.4 gal (1.4 L) | 0.5 gal (1.9 L) |
Where these models differ, explained
SFC-21: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — scag.com.
Gas Push Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — badboycountry.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.