Bad Boy Onslaught 550 ATV Unveiled

Lucas Cooney
by Lucas Cooney
First ever ATV from electric UTV company feature a gas-powered engine

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

2008 Bad Boy Buggy Review 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 for more information.

Bad Boy Onslaught 550 4×4 Specs

Engine and Drivetrain
Engine Type4-Stroke SOHC Single Cylinder
Displacement503 cc
Horsepower39 hp
Transmission/Final DriveAutomatic CVT L/H/N/R; Shaft
Fuel SystemElectronic Fuel Injection
Drive System4WD/2WD
Engine Braking System (EBS)Standard
Front SuspensionIndependent Double A-arm; 8.7″ (22.0 cm) Travel
Rear SuspensionIndependent Double A-arm 9.4″ (24.0 cm) Travel
Front/Rear Brakes200mm Hydraulic Discs/180mm Hydraulic Discs
Parking BrakeLockable Hand Lever
Tires and Wheels
Front TiresAT25 X 8-12 (EPS Model – AT26 X 8-14)
Rear TiresAT25 X10-12 (EPS Model – AT26 X 10-14)
Front/Rear Racks99lb (45kg)/165lb (75kg)
Fuel Capacity4.2 gal (16.0 L)
Ground Clearance12″ (305 mm)
L x W x H84.8″ x 48.6 x 49.2″ (2155 x 1235 x 1250 cm)
Seat Height36.1″ (914 mm)
Wheelbase50.4″ (1280 mm)
Estimated Wet Weight803 lb (364 kg)
SteeringElectronic Power Steering (Optional)
ColorsBlack, Olive Green
Hitch Towing Rating1,225 lb (555.7 kg)
Hitch TypeStandard/1.25″ Receiver
InstrumentationDigital 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
LightingDual 60w low/high beem lights, Third-head light, Dual Brakelights, Taillights
Lucas Cooney
Lucas Cooney

I have been working exclusively in digital media since 1997. I started out with, spending nearly nine years creating and editing content on Canada's leading sports website. I left to join VerticalScope, Inc., one of the world's largest online publishers, to start a number of powersports publications. While at VerticalScope, I've helped create and oversee content for a wide variety of different publications, including,,,,, and many more.

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