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Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over
Biktrix Juggernaut Ultra Duo 4 Step-Over

Biktrix Juggernaut Ultra Duo 4 Step-Over

$4,499.00 - $5,698.00
$4,499.00
$3,799.00
$3,799.00 - $4,998.00
$3,799.00
Brand Price Match

The Biktrix Juggernaut Ultra Duo 4 Step-Over is a powerful fat tire electric bike designed for riders who want premium performance on trails, gravel roads, snow, sand, and city streets. Powered by the legendary Bafang Ultra mid-drive motor with up to 160 Nm of torque, it delivers exceptional climbing power, responsive pedal assistance, and a natural riding experience.

Built around a durable 6061 aluminum frame, the Juggernaut Ultra Duo 4 features 26" x 4.0" fat tires, an RST suspension fork, Shimano 9-speed drivetrain, and hydraulic disc brakes for confident control on a variety of terrain. A full-color display, thumb throttle, integrated LED headlight, rear rack, and fenders complete this versatile all-terrain e-bike built for adventure and everyday riding alike.

Motor: 1000W Bafang Ultra M620 160 Nm Torque)
Battery: 52V 17Ah or 52V 21Ah Lithium-Ion Battery (Samsung Cells)
Range: Up to 120 km
Speed: Up to 32 km/h (Can be unlocked for Off-Road Use Only)
Display: Bafang Full-Color LCD Display
Integrated Lights: Front LED Headlight
Assist Sensor: Torque Sensor
Throttle: Thumb Throttle
Charging Time: 6-8 Hours
Pedal Assist: 5 Levels

Tires: 26" x 4.0" Fat Tires
Rims: Double-Wall Aluminum Rims
Frame Material: 6061 Aluminum Alloy Step-Through Frame
Derailleur: Shimano Alivio 9-Speed
Shifters: Shimano Alivio 9-Speed
Brakes: Hydraulic Disc Brakes, 180mm Rotors
Chain: KMC E-Bike Chain
Cassette: Shimano 11-34T 9-Speed
Suspension: RST Guide Suspension Fork, 75mm Travel
Fork Adjustments: Preload & Lockout
Rack & Fenders: Included
Drive System: Mid-Drive

Bike Weight: 79 lbs
Weight Capacity: 330 lbs
Wheel Size: 26" x 4.0"
Frame Style: Step-Through

Product Features

LCD Display

LCD Display

Displays ride information such as speed, battery level, odometer, and pedal assist settings.

Mid-Drive Motor

Mid-Drive Motor

Features the Bafang Ultra M620 mid-drive motor with 1000W nominal power and 160 Nm of torque for climbing hills and tackling varied terrain.

Thumb Throttle & Control Pad

Thumb Throttle & Control Pad

Allows riders to access motor power without pedaling using a thumb-operated throttle.

Suspension Fork

Suspension Fork

Equipped with an RST Guide suspension fork offering 75 mm of travel with preload and lockout adjustment.

Drivetrain

Drivetrain

Uses a Shimano Alivio 9-speed drivetrain for hill climbing and efficient cruising.

Hydraulic Disc Brakes

Hydraulic Disc Brakes

Provide strong and consistent stopping power in wet and dry conditions, with improved braking performance compared to mechanical brakes.

Integrated Front Light

Integrated Front Light

A frame-powered LED headlight improves visibility for riding in low-light conditions and helps riders be seen by others on the road.

Rack and Fenders

Rack and Fenders

Commute, explore, and run errands with added convenience. The included rear rack makes carrying cargo easy, while full-coverage fenders help keep you clean and protected from water, mud, and road debris.

Biktrix Juggernaut Ultra Duo 4 Review

In this video, we take a detailed look at the Biktrix Juggernaut Ultra Duo 4, an e-bike that stands out with its impressive power, extensive customization options, and dual battery setup.

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