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Bad Boy Mowers Rebel

Zero-Turn mower · Model BRB54FX850 · Commercial-duty · Gas

Bad Boy Mowers doesn’t publish a list price for this model — it’s dealer quote only. The Bad Boy Mowers product page is the place to start.

The Bad Boy Mowers Rebel is a commercial-grade gas zero-turn mower, built for daily commercial mowing, with a 61-inch deck and a 822cc engine making 31 hp. It weighs 1382.3 lb (627 kg).

At a glance

Power Source
gas
Cutting Width
61 in (1549 mm)
Displacement
50.2 ci (822 cc)
Engine Power
31 hp
Transmission
4400 Dual Hydro Gear 16cc Integrated Transaxle
Ground Speed
12 mph
Compare this mower: Pick another Bad Boy Mowers zero-turn or pick from every zero-turn mower   or quick compare: vs E-Magnum (Electric Zero-Turn) · vs Maverick · vs Maverick HD
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Deck 60 in (1524 mm) · Kawasaki® FX781V EVO, 30.5 hp, 822 cc
    Ground speed 10 mph (this model: 12 mph)Fuel capacity 11 gal (41.6 L) (this model: 12.9 gal (49 L))
    Why: Same class: zero-turn · 60 in deck, within 6 in of this model's 61 in · Gas engine, like this model · Commercial-duty, like this model · 30.5 hp (this model: 31 hp) · By Ferris, a different maker
    Compare with the Rebel ›
  • Deck 60 in (1524 mm) · Kawasaki® FX850V EFI, 29.5 hp, 852 cc
    Ground speed 11 mph (this model: 12 mph)
    Why: Same class: zero-turn · 60 in deck, within 6 in of this model's 61 in · Gas engine, like this model · Commercial-duty, like this model · 29.5 hp (this model: 31 hp) · By Gravely, a different maker
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  • Deck 61 in (1549 mm) · Vanguard BIG BLOCK, 36 hp
    Ground speed 16 mph (this model: 12 mph)Engine power 36 hp (this model: 31 hp)
    Why: Same class: zero-turn · Same 61 in deck · Gas engine, like this model · Commercial-duty, like this model · 36 hp (this model: 31 hp) · By Scag, a different maker
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  • Deck 60 in (1524 mm) · Kawasaki FX850-EFI, 29.5 hp, 852 cc
    Fuel capacity 11.6 gal (43.9 L) (this model: 12.9 gal (49 L))Max cut height 5.5 in (140 mm) (this model: 5 in (127 mm))
    Why: Same class: zero-turn · 60 in deck, within 6 in of this model's 61 in · Gas engine, like this model · Commercial-duty, like this model · 29.5 hp (this model: 31 hp) · By Kubota, a different maker
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  • Deck 60 in (1524 mm) · Kawasaki® FX921V, 31 hp, 999 cc
    Displacement 61 ci (999 cc) (this model: 50.2 ci (822 cc))Max cut height 5.5 in (140 mm) (this model: 5 in (127 mm))
    Why: Same class: zero-turn · 60 in deck, within 6 in of this model's 61 in · Gas engine, like this model · Commercial-duty, like this model · 31 hp (this model: 31 hp) · By Gravely, a different maker
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Chosen by stated rules, not opinion: same class, a deck within 6 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.

Engine

Bad Boy Mowers Rebel engine specifications
Power Sourcegas
Displacement50.2 ci (822 cc)
Engine Power31 hp
Engine MakeKawasaki

Deck

Bad Boy Mowers Rebel deck specifications
Cutting Width61 in (1549 mm)
Min Cut Height1 in (25 mm)
Max Cut Height5 in (127 mm)
Deck Material1/4" or 3-Gauge Thick Solid Steel
Deck Construction3 Gauge / 6mm
Deck Gauge3

Drive

Bad Boy Mowers Rebel drive specifications
Transmission4400 Dual Hydro Gear 16cc Integrated Transaxle
Ground Speed12 mph
Drive Tire Size24x12-12 Reaper

Dimensions

Bad Boy Mowers Rebel dimensions specifications
Weight1382 lbs (627 kg)
Fuel Capacity12.9 gal (49 L)
Length92 in (2336 mm)
Height50 in (1270 mm)

Professional use

How the Rebel fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.

Acres/hr (80%)
4.14
Acres/hr (100%)
7.39
Deck width
61 in
Ground speed
12 mph

Productivity computed from deck width and ground speed. Compare on the calculator ›

Bad Boy Mowers Rebel professional and productivity specifications
Deck width61 in
Engine makeKawasaki
Engine displacement822 cc
Engine power31 hp
Transmission4400 Dual Hydro Gear 16cc Integrated Transaxle
Ground speed12 mph
Cut-height range25 mm – 127 mm
Fuel capacity49 L
Weight627 kg
Deck construction3 Gauge / 6mm
Deck gauge3 ga
Drive tire size24x12-12 Reaper

Bad Boy Mowers doesn’t publish 7 of these for the Rebel: drive type, warranty, commercial warranty, spindle type, frame construction, anti-scalp rollers, seat type.

See the Bad Boy Mowers commercial pro hub › · Professional buying hub ›

Similar models

Other zero-turn mowers with comparable specs — including other brands — that buyers cross-shop with the Rebel.

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.

What the specs work out to

Figures MowerFacts computes from Bad Boy Mowers’s own numbers — not published by the manufacturer.

Mowing time

  • ¼ acre4 min 3 min
  • ½ acre7 min 5 min
  • 1 acre14 min 10 min
  • 2 acres29 min 20 min
  • 5 acres1 h 12 min 51 min
  • 10 acres2 h 25 min 1 h 41 min

About 14 min per acre at 4.14 acres/hour, mowing at 8.4 mph. The second figure is at the published 12.0 mph top speed (5.92 acres/hour) — faster than anyone really mows. About 53.4 acres per tank.

Weight & hauling

  • Machine weight1,382 lb
  • + 6×12 trailer900 lb
  • Towed weight2,282 lb
  • single-axle 3,500 lbCarries it, 1,218 lb spare
  • tandem-axle 7,000 lbCarries it, 4,718 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 2,282 lb.

Gate & trailer fit

  • 32 in gateToo wide
  • 36 in gateToo wide
  • 48 in gateToo wide

Needs at least 67 in of clearance (estimated).

Power & run time

  • Power per deck inch0.508 hp/in
  • Run time per tank~12.9 h

Mowing times assume 4.14 acres/hour: deck width x 8.4 mph at 80% efficiency, which allows for overlap, turns and trimming. 8.4 mph is 70% of the 12.0 mph top speed Bad Boy Mowers publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 12.0 mph, shown so you can see it.

Fit uses the deck width plus 6 in for the discharge chute, because Bad Boy Mowers doesn't publish an overall width — measure before buying if a gate is tight.

Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to Bad Boy Mowers's published machine weight. Your trailer's own weight is on its VIN plate. Tongue weight, axle placement and your vehicle's tow rating are still yours to check — this is the load, not a loading plan.

Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.

Bad Boy Mowers Rebel questions

What size deck is on the Bad Boy Mowers Rebel?

The Bad Boy Mowers Rebel has a 61-inch (1549 mm) cutting deck with 1/4" or 3-gauge thick solid steel construction.

What engine is in the Bad Boy Mowers Rebel?

The Bad Boy Mowers Rebel is powered by a Kawasaki, 822 cc, 31 hp. Horsepower is the manufacturer's own rating.

How much does the Bad Boy Mowers Rebel weigh?

The Bad Boy Mowers Rebel weighs 1,382 lb (627 kg) as specified by Bad Boy Mowers.

What size trailer do I need for the Bad Boy Mowers Rebel?

At 1,382 lb, the Bad Boy Mowers Rebel on a typical 6x12 open utility trailer (about 900 lb empty) is roughly 2,282 lb of towed weight. That is within a single-axle 3,500 lb trailer, and your tow vehicle needs to be rated for at least 2,282 lb. Tongue weight, axle placement and your own trailer's empty weight still have to be checked — this is the arithmetic, not a loading plan.

How fast is the Bad Boy Mowers Rebel?

Top ground speed is 12 mph. With its 61-inch deck that works out to about 5.92 acres per hour at 80% efficiency — allowing for overlap, turns and trimming.

How long does the Bad Boy Mowers Rebel take to mow an acre?

About 10 min per acre, from its 61-inch deck at 12 mph and 80% efficiency — roughly 5.92 acres an hour, so five acres is about 51 min. Rough or obstacle-heavy ground takes longer; this is deck width times ground speed, not a timed test.

How big is the fuel tank on the Bad Boy Mowers Rebel?

The Bad Boy Mowers Rebel holds 12.9 gal (49 L) of fuel.

How much does the Bad Boy Mowers Rebel cost?

Bad Boy Mowers doesn't publish a list price for the Bad Boy Mowers Rebel — it's sold on a dealer quote. MowerFacts records prices only where the manufacturer publishes them.

What is the Bad Boy Mowers Rebel built for?

Commercial-duty zero-turn mower. Built for daily, paid commercial use.

Source: Bad Boy Mowers (manufacturer) · archived copy

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