We’ve been familiar with Bad Boy for years as a builder of Utility-minded electric UTVs. For 2016 Bad Boy is shaking things up in a major way with its first ATV, this one featuring a gas-powered motor. Introducing the Bad Boy Onslaught 550 4×4.

The new Onslaught ATV features independent double A-arm front and rear suspension and an impressive 12 inches of ground clearance. Muscle comes from a 503cc single-cylinder engine with electronic fuel injection that produces a claimed 39 horsepower.

Bad Boy Onslaught Action Front

Bad Boy is offering its new ATV in two configurations – Onslaught 550 4×4 EFI and the Onslaught 550 4×4 EFI EPS with electronic power steering (EPS). Both models are available in black or olive green, with Realtree Xtra camouflage and premium wheels offered as factory-installed options on EPS-equipped vehicles.

“We introduced the Onslaught in response to market demand for an ATV in the Bad Boy line,” said John Collins, vice president, consumer for Textron Specialized Vehicles, which markets Bad Boy off-road vehicles. “Onslaught offers comfort, control, power and styling for riders who simply want to do more in the outdoors. Whether it’s recreation or work, you can just bring it on and get after it with Onslaught.”

Bad Boy Onslaught Action Mud

Bad Boy boasts the Onslaught 550‘s dual 60-watt halogen headlights with low- and high-beam options and a center headlight provide the brightest lighting in its class.

Other features include hydraulic disc brakes, locking differential, 8.7 inches of front suspension travel, 9.4 inches of rear suspension travel, front and rear cargo racks (99 lbs/165 lbs capacity), 1,225-pound towing capacity, A-arm guard and skid plate underbody protection, and a one-year warranty.

Bad Boy Onslaught Profile

Each Onslaught 550 4×4 model has digital instrumentation and electric start. Prices start at $6,299.

The Onslaught 550 4×4 is now available from Bad Boy Authorized Dealers. Visit BadBoyBuggies.com for more information.

Bad Boy Onslaught 550 4×4 Specs

Engine and Drivetrain
Engine Type 4-Stroke SOHC Single Cylinder
Displacement 503 cc
Horsepower 39 hp
Transmission/Final Drive Automatic CVT L/H/N/R; Shaft
Fuel System Electronic Fuel Injection
Drive System 4WD/2WD
Cooling Liquid
Engine Braking System (EBS) Standard
Front Suspension Independent Double A-arm; 8.7″ (22.0 cm) Travel
Rear Suspension Independent Double A-arm 9.4″ (24.0 cm) Travel
Front/Rear Brakes 200mm Hydraulic Discs/180mm Hydraulic Discs
Parking Brake Lockable Hand Lever
Tires and Wheels
Front Tires AT25 X 8-12 (EPS Model – AT26 X 8-14)
Rear Tires AT25 X10-12 (EPS Model – AT26 X 10-14)
Wheels Steel
Front/Rear Racks 99lb (45kg)/165lb (75kg)
Fuel Capacity 4.2 gal (16.0 L)
Ground Clearance 12″ (305 mm)
L x W x H 84.8″ x 48.6 x 49.2″ (2155 x 1235 x 1250 cm)
Seat Height 36.1″ (914 mm)
Wheelbase 50.4″ (1280 mm)
Estimated Wet Weight 803 lb (364 kg)
Steering Electronic Power Steering (Optional)
Colors Black, Olive Green
Hitch Towing Rating 1,225 lb (555.7 kg)
Hitch Type Standard/1.25″ Receiver
Instrumentation Digital instrument panel with odometer, speedmeter, Tripmeter, RPM, transmission position, fuel gauge, Hi-Temp/Low-Batt lights, high beam light, EFI checking, differential indicator, 2WD/4WD indicator
Lighting Dual 60w low/high beem lights, Third-head light, Dual Brakelights, Taillights



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Steve says:

Can anyone tell me how to take the seat off on a Bad Boy Onslaught 550? The manual says to use the key but I cannot find a place to use the key to take the seat off!

Richard Marriott-Smith says:

On the left side of the ATV is a key hole. Just insert and turn to the right. Then, grab the rear of the seat and lift.

Jacob says:

CN anyone tell me the belt size for a bad boy atv

Carly Olivares says:

Can anyone help me by trying to figure out why my 4×4 won’t work on my 2016 onslaught 550

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