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The BiktrixJuggernaut Ultra Duo4 Step-Thru Mid-Drive Electric Bikeisa high-power e-bike that can go miles of adventure on a single charge.

TheUltra Duo4sits at the top of the Duo range, so naturally, it boasts one of the most powerful motor systems available today. The Bafang Ultra M620 mid-drive motor is loaded with 1500W of peak power and 160Nm of torque.

Pair that with the 9-speed drivetrain and you'll be nearly unstoppable.

TheBiktrixhydraulic disc brakesprovide strong & dependable stopping power. Extra traction from fat tires. Choose the 27.53 plus-size wheels for less drag and a great commute on multiple surfaces.

Mid-Drive Motor

The Bafang Ultra M620 mid-drive motor features 1000 watts of power and 160Nm of torque. Span cities, climb hills and explore all the places you want to go with ease.

LCD Display

The LCD Display shows all kinds of information about your ride including speed, battery life, range, odometer, pedal assist level and more.

Thumb Throttle & Control Pad

With just a push of a thumb, you can access all of the power the motor has to offer.

Suspension Fork

The RST Guide spring suspension fork provides 75mm of travel with pre-load and lockout adjustability.

Drivetrain

From climbing hills top holding maximum speed on flats, the Shimano Alivio 9 Speed drivetrain has you covered.

Hydraulic Disc Brakes

When its so easy to go fast, you need strong stopping power. These hydraulic disc brakes will quickly and reliably bring you to a halt.

Integrated Front Light

This bright LED light is powered by the bikes battery and can be turned on and off with a button on the handlebar control pad.

Optional Range Extender Battery

Multiple range-extender battery options can expand your eBikes range all the way to 160 kilometres.

Rack & Fenders

These fenders will keep you and your bike clean. Need to carry some gear? Strap it onto the rear rack and head out!

• FRAME: 6061 Aluminum
  
• REAR HUB: 190mm 36H
  
• SEAT POST: 28.6mm
  
• FORK: RST Guide W/80mm Travel, Lockout & Preload
  
• REAR AXLE/SKEWER: 5mm QR
  
• SEAT POST CLAMP: QR
  
• HEADSET: Threadless 1-1/2" 1-1/8" Tapered
  
• RIMS: Black 26" / 27.5" W/ Round Cutouts
  
• MOTOR: Bafang Ultra M620
  
• SHIFTER REAR: Shimano Alivio 9 Speed Trigger
  
• TIRES: 26x4", 27.5x3"
  
• BATTERY SIZES: Total Capacity Of 52V 36.5Ah 1898Wh: 52V 17.5Ah 910Wh (Internal Battery) + Up To 52V 19Ah 988Wh (External Range Extender Battery)
  
• REAR DERAILLEUR: Shimano Alivio 9 Speed
  
• BRAKES: Biktrix Dual Piston Hydraulic W/180mm Rotors
  
• DISPLAY: DPC-18
  
• CASSETTE: 11-34T
  
• BRAKE LEVERS: Biktrix Adjustable W/ Integrated Brake Cutoffs
  
• LIGHTS: Integrated Headlight, Integrated Taillight
  
• CHAIN: KMC E9s 124 Links
  
• HANDLEBAR: 700mm Wide, 50mm Rise W/31.8mm Clamp
  
• ASSIST TYPE: Torque + Cadence
  
• CRANK SET: 44T Chainring W/ 170mm Arms
  
• STEM: Adjustable Stem
  
• ASSIST LEVELS: 0-5
  
• BOTTOM BRACKET: Bafang ISIS
  
• GRIPS: Slide-On Comfort Grips
  
• THROTTLE: Thumb Throttle
  
• FRONT HUB: 135mm 36H
  
• SADDLE: Wide Spring Supported Comfort Saddle
  
• OTHER: Front And Rear Fenders, Kickstand, Rear Rack
  
• FRONT AXLE/SKEWER: 5mm QR

Size & Fitting:

L | 18"