Juggernaut Ultra Duo 3 SO Special

Sale price CA$4,199.00
Sale price CA$4,199.00


Miles Range


Torque For Extreme Hills

52V 17Ah

Strong, Reliable Battery

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.

Performance. Fully Loaded.

Technical Specifications

Size & Fittings

FAQ & Guides

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Customer Reviews

Based on 81 reviews
Latin Louie
Great Bike, well made and have had it for one week now!

I am really enjoying riding my new Juggernaut Ultra Duo 2 Step-Over. It has been 5 years since I have had ridden a bike. My old English 10 speed with the skinny tires got ruined in a flood and I never replaced it until now. I carefully investigated many of the available E-Bikes and listened carefully to many of the reviews on Biktrix Bikes. I made a decision to buy one and very happy that I did. Power assist is a different feel, and I am taking is slowly as recommended. The Biktix staff has been most helpful and you can't ask for more than that. I highly recommend getting your E-Bike from this company.

Harold Leasure
Juggernaut Ultra duo 3

Bike had no damage and was packed nice. The chocolate pearl is different but for the price i can live with it. Both tires were almost flat and rear fender bolt on frame was not tightened but easy fixes. Assembly was simple and bike feels lighter than my Juggernaut classic duo step-over, may be the 27.5x 3 tires versus 26x4 on the classic duo. Rear derailer will need to be indexed but shifts smooth and brakes although they are Biktrix brand work well and no noise. Motor is much noisier on this bike than i expected, may just need greased more. Torque sensor is taking some time to get used to versus cadence on my other Biktrix bike. In sport mode or using throttle this bike will move. Very comfortable riding bike with plenty of adjustability. The brake light is a nice touch versus just a tail light. Only 58 miles in 2 rides so far but for the price was a great deal.

It's ok

I feel like the drivetrain needs to be beefed up. I took a ride after assembly and the chain was skipping in the highest gears. Durring my ride i rode up a steep hill in first gear and the chain snapped. Biktrix did send out a new chain after i contacted them. When i put the new chain on upon inspection the cassette has a few bent and broken teeth on gears 1,2,7,8,9.

Ultra Duo is a great fit for me

I spent hours on the Biktrix website comparing the various models and alternative features of the models. I decided the Ultra Duo was the most affordable and best fit for me. Since it arrived I have ridden it on gravel and pavement and dirt pathways. It handles well in all environments. I really enjoy the ride. While I still have much to learn about the features I know that I will get many happy miles out of this beauty. Also glad that I sprung for the Biktrix A-bar and the comfort grips.

Thaddeus Knight
Test ride only still at the bike shop.

The bike engineer says there's a defect and the Front fort and it has to be replaced making a loud noise. Waiting Your service department to reply to my bike mechanic. Not happy