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 11-speed drivetrain and you'll be nearly unstoppable.


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 important information about your ride including speed, battery life, range, odometer, pedal assist level and more.

Thumb Throttle & Control Pad

With just a push of the thumb, you can access all of the power the motor has to offer. No need to pedal, just sit back and enjoy the ride.

Suspension Fork

The RST Renegade air fork provides 100mm of travel with pre-load and lockout adjustability


From climbing hills to holding maximum speed on the flats, the SRAM NX 11-speed drivetrain has you covered.

Hydraulic Disk 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/off with a button on the handlebar control pad.

Optional Range Extender

Multiple range-extender battery options can expand your eBike's range all the way to 100 miles.

Rack & Fenders

These fenders will keep you and your bike clean. Need to carry some gear? Strap on the rear rack and make your way!

Technical Specifications

Size & Fittings

16" Step-Thru 17" Step-Over 18" Step-Thru 19" Step-Over

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Customer Reviews

Based on 33 reviews
randy gronlund

love my bike!!!!

Derek Rogers

Juggernaut Ultra Duo 3 Step-Over

Erica Yaskowich
Best Purchase

I had been thinking about an E-bike for awhile and looked at many different companies. Super glad I chose what I did. The Ultra Duo 3 with the range extender I purchased is perfect for me. It is nice having the ability after you have been pedalling hard to get the extra boost from the throttle when you need it. Hills are a breeze and a long ride is no problem. I have never been happier with my bike and would highly, highly recommend anyone who is interested in an e-bike to take the time and visit the showroom. I learned a lot and really saw what they had to offer. Again, best purchase I have made in a very long time and I can’t wait for more adventures to begin!

Kenton Kusch
Ultra Dou 3

The bike is awesome.Igive it a 4.5 The rims lwish were 80mm
Its power is great.l love it.

Peter LaGrandeur
All Great Except High Stepover Height

Yes, life is always a compromise. I bought the Juggernaut Ultra Duo 3 with the 17" frame, stepover, and 27.5" wheels. I'm "inseam challenged" and have a short inseam height, 28". It's a bit high for me to mount, but once I'm seated, it fits me well, and is a pleasure to ride.
Other than that, the bike is very sturdy and seems very well designed. It is powerful, has many great features, and it rides very smooth with excellent stability. Its performance has exceeded my expectations.
I got it for riding urban streets, country gravel roads, paved back roads, forestry roads, rail trails, and canal pathways.
It's a bit too big and fast for urban bike paths.
The frame seems very strong and well designed. Its mechanical componentry is industry standard and should be able to be serviced at any bike shop.
The electronic and electric componentry uses the Bafang system which is industry standard, and hopefully will have parts available for years to come.
I'm looking forward to a BikTrix shop opening in Calgary soon.
I definitely recommend this bike to anyone who wants an eBike, and will use it for the same things as me.
A possible option for us who are short in the inseam would be to offer the option to buy just a basic front fork with no suspension. This would drop the height of the top bar by a few inches, making it much easier to straddle the bike. Just a thought ...
Anyway, a great product for a great price, in comparison to the name brand competition.

Bob Rehkopf
Jugg Ultra Duo

Major Fun . On road or off . Biktrix #1 all around .

Peter Johnson

I own 4 electric bikes and the Bixtrix is my go to. Absolutely fabulous

Simon Jones
Juggernaut Ultra FS Duo Pro

In a word, Awesome!

I am 6’6” and really enjoy the ride and freedom on this bike!

David Wilson
Great bike

Got exactly the bike I wanted, Assembly was quick and easy. Super fast bike, battery was still above 80% after a hour ride around a local lake that includes hills. Comfortable ride, I highly recommend this Bike, love the hydraulic breaks and super Brite headlight.