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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 RC Extreme Slope Mower — commercial: daily paid use and high acreage; 52-inch deck; gas powered
  • Wright ZXL 52 FX850E — commercial: daily paid use and high acreage; 52-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
  1. RC Extreme Slope Mower has a published top speed of 3 mph; ZXL 52 FX850E has a published top speed of 12.5 mph, a 9.5 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
  2. RC Extreme Slope Mower cuts from 3.5 in (89 mm) to 11.5 in (292 mm); ZXL 52 FX850E cuts from 1.5 in (38 mm) to 6 in (152 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
  3. RC Extreme Slope Mower weighs 2,400 lbs (1,088.6 kg); ZXL 52 FX850E weighs 1,250 lbs (567 kg), a 1,150 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What RC Extreme Slope Mower's weight means for a trailer ›
  4. RC Extreme Slope Mower has a 37 hp engine; ZXL 52 FX850E has a 27 hp engine, a 10 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.
  5. RC Extreme Slope Mower has a 60.6 ci (993 cc) engine; ZXL 52 FX850E has a 52 ci (852 cc) engine, a 8.6 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
calculated figures and what isn’t comparable

Calculated by MowerFacts

  • RC Extreme Slope Mower works out to 1.3 acres/hour; ZXL 52 FX850E works out to 5.3 acres/hour, a 4.0 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

  • Fuel Capacity: not published for RC Extreme Slope Mower.
  • Blades: not published for RC Extreme Slope Mower.
  • Transmission: not published for RC Extreme Slope Mower.
  • Fuel Type: not published for RC Extreme Slope Mower.
  • Deck Material: not published for RC Extreme Slope Mower.
  • Deck Construction: not published for RC Extreme Slope Mower.
  • Drive System: not published for ZXL 52 FX850E.
  • Start Type: not published for RC Extreme Slope Mower.
  • Price: ZXL 52 FX850E 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.

Add another (2 more fit): every commercial mower · more Scag · more Wright
Side-by-side specifications: Scag RC Extreme Slope Mower vs Wright ZXL 52 FX850E
Spec RC Extreme Slope Mower
Scag · Commercial
ZXL 52 FX850E
Wright · Commercial
List price $57,900–$59,750dealer quote
Engine
Power Source gas gas
Engine Make Vanguard BIG BLOCK™ V-Twin EFI engine with ETC with Oil Guard Kawasaki
Displacement 60.6 ci (993 cc) 52 ci (852 cc)
Engine Power 37 hp 27 hp
Engine Model — FX850E
Fuel Type — Gasoline
Start Type — Electric
Deck
Cutting Width 52 in (1321 mm) 52 in (1321 mm)
Blades — 3
Deck Material — 7 Gauge
Deck Construction — Floating-side discharge
Deck Gauge — 7
Min Cut Height 3.5 in (89 mm) 1.5 in (38 mm)
Max Cut Height 11.5 in (292 mm) 6 in (152 mm)
Drive
Transmission — Hydro
Ground Speed 3 mph 12.5 mph
Reverse Speed — 8 mph
Drive System Electric Drive (No PTO) —
Dimensions
Weight 2400 lbs (1088.6 kg) 1250 lbs (567 kg)
Fuel Capacity — 15.5 gal (58.7 L)
Length 75.4 in (1915 mm) 82.5 in (2096 mm)
Width 70 in (1778 mm) —

RC Extreme Slope Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — scag.com.

ZXL 52 FX850E: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — wrightmfg.com.

Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.

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