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Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Custom Color Bike
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
Juggernaut Ultra Duo 4 Step-Thru
1000W Mid-Drive

Motor Power

160Nm of Torque

Extreme Hills

52V 17Ah 910Wh

est. 70km/45mi Range

330lb

Load Capacity

Cadence + Torque Sensor

Smooth & Powerful Pedal Assist

On-Demand Throttle

Pedaling Optional

25+ Point Quality

Control Checklist
Save C$700 New

Juggernaut Ultra Duo 4 Step-Thru

C$3,899.00
Ships in 6-7 business days

What frame will fit me?

×

The best way to ensure a fit is to check this measurement on your existing bike’s normal riding seat position;

If this measurement is equal to or MORE than the minimum seat height of the selected model then the selected frame size will work, however, if it is LESS you need to select a smaller frame.

 

If you do not have a bike then measure your inseam like this;

For most riders, the frame will work if their inseam is at least 2 inches less than the minimum seat height in inches. For example, a rider with an inseam of 28 inches can fit on a bike with a minimum seat height of 30 inches (30 - 2 = 28).

If you want to have a flat foot on the ground while on a full stop then your inseam must be equal to or greater than the minimum seat height listed for that frame size.


If you are selecting a step-over frame, ensure that the standover height listed is less than your inseam size.

 

    When in doubt, pick the smaller frame. You can always raise the seat up higher.

    If you need help with this, feel free to send us a note at: www.biktrix.com/cx
    Emerald Green

    Pick Your Custom Powder Coat Color

    ×
    **Decals on finished product may differ between Black and White based on Availablity.
    Save Cancel

    What wheels should I choose?

    ×

    Wheel Diameter (Height):

    • 20" / 24" - These wheels offer a lower stance for our shorter customers to allow a more comfortable fit and ride.
    • 26" - A great choice for most riders offering a more traditional look.
    • 27" / 29” - Our tallest tire options for our tallest customers. 

    Tire Width:

    • 52c / 2.125" / 2.2" (MTB) - These tires offer the lowest rolling resistance and best mimic a "Traditional" tire size. They are great for paved trails and commuting, but are not suggested for loose terrain.
    • 3" (MTB+) - A versatile choice for riders who want great performance on both trails and commutes (recommended for ice/gravel).
    • 4" - Fat tires offer great All-Season performance with a focus on stability (recommended for Snow/Sand).
    • 4.8" - The widest tire we offer. Great for off-road and backwood adventures. These tires have lots of tread for extra "bite", extra cushion for riding on rough ground, and added stability while riding on softer terrain (recommended for all-terrain).

    Tread Style:

    • Street Tires - Great for commuting or riding paved paths. Has less rolling resistance than MTB tires.
    • MTB Tires - Great versatility for on or off-road riding. These tires have more rolling resistance but much greater traction.
    Estimated to be shipped in 6-7 business days

    Technical Specifications

    Technical Specifications

    ×

    Sizing / Fittings

    Sizing / Fittings

    ×
    1 Effective Top Tube Length 560mm 22in
    2 Seat Tube Length (Classic Bike Size) 420mm 16.5in
    3 Reach 520mm 20.5in
    4 Stack 500mm 19.7in
    5 Chainstay Length 480mm 18.9in
    6 Standover Height 430mm 16.9in
    7 Head Angle 68° -
    8 Seat Angle 71° -
    9 Head Tube Length 180 mm 7.1 in
    10 Fork Length 530mm 20.9in
    11 Front Center 710mm 28in
    12 BB (Bottom Bracket) Drop 40mm 1.6in
    13 Fork Offset 30mm 1.2in
    14 Wheelbase 1240mm 48.8in
    15 Total Length 2000mm 78.7in
    16 Max Seat Height 1000mm 39.4in
    17 Min Seat Height 830mm 32.7in
    18 Handlebar Height 1100mm 43.3in
    19 Weight (Without Battery) 33.5kg 73.9lb
    1 Effective Top Tube Length 560mm 22in
    2 Seat Tube Length (Classic Bike Size) 460mm 18.1in
    3 Reach 560mm 22in
    4 Stack 520mm 20.5in
    5 Chainstay Length 520mm 20.5in
    6 Standover Height 450mm 17.7in
    7 Head Angle 68° -
    8 Seat Angle 71° -
    9 Head Tube Length 180 mm 7.1 in
    10 Fork Length 530mm 20.9in
    11 Front Center 730mm 28.7in
    12 BB (Bottom Bracket) Drop 50mm 2in
    13 Fork Offset 30mm 1.2in
    14 Wheelbase 1240mm 48.8in
    15 Total Length 2000mm 78.7in
    16 Max Seat Height 1000mm 39.4in
    17 Min Seat Height 880mm 34.6in
    18 Handlebar Height 1160mm 45.7in
    19 Weight (Without Battery) 34kg 75lb

    The Duo Series. Ebikes For Everyone.

    The Juggernaut Duo Series is all about flexibility. Hub-drive or mid-drive, step-over or step-thru, single battery or dual battery, entry-level or high-end. No matter your needs, there's probably a Duo for you.

    Watch this video to see how The 3 Duo models stack up.

    Welcome To The Big Leagues.

    The Ultra Duo sits 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.

    Ultra Power. Greater Features.

    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 it’s 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 bike’s 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 eBike’s 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!

    Technical Specifications

    Size & Fittings

    1 Effective Top Tube Length 560mm 22in
    2 Seat Tube Length (Classic Bike Size) 420mm 16.5in
    3 Reach 520mm 20.5in
    4 Stack 500mm 19.7in
    5 Chainstay Length 480mm 18.9in
    6 Standover Height 430mm 16.9in
    7 Head Angle 68° -
    8 Seat Angle 71° -
    9 Head Tube Length 180 mm 7.1 in
    10 Fork Length 530mm 20.9in
    11 Front Center 710mm 28in
    12 BB (Bottom Bracket) Drop 40mm 1.6in
    13 Fork Offset 30mm 1.2in
    14 Wheelbase 1240mm 48.8in
    15 Total Length 2000mm 78.7in
    16 Max Seat Height 1000mm 39.4in
    17 Min Seat Height 830mm 32.7in
    18 Handlebar Height 1100mm 43.3in
    19 Weight (Without Battery) 33.5kg 73.9lb
    1 Effective Top Tube Length 560mm 22in
    2 Seat Tube Length (Classic Bike Size) 460mm 18.1in
    3 Reach 560mm 22in
    4 Stack 520mm 20.5in
    5 Chainstay Length 520mm 20.5in
    6 Standover Height 450mm 17.7in
    7 Head Angle 68° -
    8 Seat Angle 71° -
    9 Head Tube Length 180 mm 7.1 in
    10 Fork Length 530mm 20.9in
    11 Front Center 730mm 28.7in
    12 BB (Bottom Bracket) Drop 50mm 2in
    13 Fork Offset 30mm 1.2in
    14 Wheelbase 1240mm 48.8in
    15 Total Length 2000mm 78.7in
    16 Max Seat Height 1000mm 39.4in
    17 Min Seat Height 880mm 34.6in
    18 Handlebar Height 1160mm 45.7in
    19 Weight (Without Battery) 34kg 75lb

    Need A Hand?

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    Customer Reviews

    Based on 102 reviews
    73%
    (74)
    12%
    (12)
    5%
    (5)
    4%
    (4)
    7%
    (7)
    j
    jared palardy
    Still haven't received the bike

    Still waiting for purolator to explain why they never delivered it

    L
    Lori Michaud
    Juggernaut Ultra Duo 4

    The box arrived in excellent condition, which you don’t see very often with heavy items. All the contents were well padded and packed. The instructions for assembly were video based online and I had watched prior to receiving my bike so I knew what to expect. I am VERY pleased with my bike and the only reason I don’t give 5 stars is the lack of paper documentation for operating the bike, battery charging, etc. Not everyone is keen on videos and sometimes finding the videos or online documentation is a pain. I would prefer a nice booklet that I can refer to and get started with. I think this would be true for the retired folks buying these bikes. I know my parents would like an e-bike but wouldn’t have a clue how to get going with no paper documentation. You have excellent products, are a big player in the e-bike industry and I think you can provide better guides for getting started.

    J
    James Bean
    Great product

    First time ebike rider and at 60 years old I feel like a kid again ..I get out and do 30 k a day like a breeze and the pedal assist has helped with back issues ..so win win 🏆 keep the great support 👍 thanks again

    K
    Keith Chapman
    They are very helpful in fixing problems

    I received the bike , in the first week I had problems , but Clayton called me and is going out of his way to be helpful and provide GOOD ! Customer service . He’s been helpful and made a bad situation ALOT better . I would highly recommend Biktrix customer service and help they provide . Even though I did have trouble they stepped right up to the plate with good customer service

    D
    Daniel Ives

    Having problems with disc front brakes. Very difficult for me to do everything by email. Would love a direct phone number to talk to someone.
    My number is
    [****]

    123

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