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Juggernaut Classic Duo Step-Over

Sale price$2,299.00 USD
Estimated to be shipped in 6-7 business days

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.

The next step in performance.

Looking for a little more power, but don't want to break the bank? Meet The Classic Duo. With a 750W mid-drive motor, The Classic delivers a considerable performance boost without sacrificing affordability. Use the bikes gears to your advantage and tackle tough terrain with ease. Your adventure awaits.

all the good stuff, and more.

Mid Drive Motor

The Bafang BBS02 mid-drive motor features 750 watts of power and 120Nm 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 Guide fork provides 80mm of travel with pre-load, lockout, and rebound adjustability


From climbing hills to holding maximum speed on the flats, the Shimano 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/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 160 km.

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


6061 aluminum

rear hub

170mm 36h

seat post



Rst guide w/75mm travel, lockout and preload

rear axle

5mm qr

seat post clamp



Threadless 1-1/8 1-1/2 tapered


Black 36h


750w bbs02 mid-drive

shifter rear

Shimano alivo 9 speed trigger shifter

tire sizes

26x4", 27.5x3"

battery sizes

Total capacity of 52v 34.5ah 1794wh:
52v 17.5ah 910wh (internal battery) +
up to 52v 17ah 884wh (external range extender battery)

rear derailleur

Shimano alivo 9 speed


Tektro e350 dual piston w/180mm rotors





brake levers

Tektro adjustable


Integrated headlight, taillight


Kmc x9


Integrated headlight, taillight


31.8mm clamp, 700mm wide, 80mm rise

assist type


crank set

170mm arms 44t chainring


Promax 90mm

assist levels


bottom bracket

Bafang square taper


Slide on


Thumb throttle

front hub

135mm 36h


Wide saddle


Front and rear fenders, rear rack, kickstand

front axle

5mm qr

Size & Fittings

1 Effective Top Tube Length 620mm 24.4in
2 Seat Tube Length (Classic Bike Size) 420mm 16.5in
3 Reach 420mm 16.5in
4 Stack 700mm 27.6in
5 Chainstay Length 530mm 20.9in
6 Standover Height 660mm 26in
7 Head Angle 68° -
8 Seat Angle 71° -
9 Head Tube Length 190 mm 7.5 in
10 Fork Length 530mm 20.9in
11 Front Center 750mm 29.5in
12 BB (Bottom Bracket) Drop 65mm 2.6in
13 Fork Offset 35mm 1.4in
14 Wheelbase 1250mm 49.2in
15 Total Length 1990mm 78.3in
16 Max Seat Height 930mm 36.6in
17 Min Seat Height 770mm 30.3in
18 Handlebar Height 1140mm 44.9in
19 Weight (Without Battery) 32.5kg 71.7lb
1 Effective Top Tube Length 640mm 25.2in
2 Seat Tube Length (Classic Bike Size) 470mm 18.5in
3 Reach 450mm 17.7in
4 Stack 670mm 26.4in
5 Chainstay Length 530mm 20.9in
6 Standover Height 710mm 28in
7 Head Angle 68° -
8 Seat Angle 71° -
9 Head Tube Length 190 mm 7.5 in
10 Fork Length 530mm 20.9in
11 Front Center 760mm 29.9in
12 BB (Bottom Bracket) Drop 65mm 2.6in
13 Fork Offset 35mm 1.4in
14 Wheelbase 1250mm 49.2in
15 Total Length 2000mm 78.7in
16 Max Seat Height 1010mm 39.8in
17 Min Seat Height 840mm 33.1in
18 Handlebar Height 1170mm 46.1in
19 Weight (Without Battery) 32.5kg 71.7lb

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Customer Reviews

Based on 146 reviews
Really, enjoy the bikes

Good range, power and comfort I think I’ll probably upgrade to a suspension seat post and I wouldn’t mind the upgraded brakes in the mountains. You get to going downhill pretty fast and I worry about overloading the brakes.

David McKellar


Rudie Ashman
Juggernaut Classic Duo Step-Through VS Rad Rover 5

I bought the 'Bixtrix Juggernaut Classic Duo Step-Through', as an upgrade to my 'Rad Rover 5'. I live in an area with steep hills. The mid-drive motor lets me use the gears, and it makes a world of difference. The motor is a true 750 watt, that peaks at 100 watts. As compared to the 500 watt motor in the Rad, that peaks at 750 watts. It feels like twice the power, the thumb throttle nearly pulls the front wheel off the ground. It has the 18-1/2" frame and I am 5'-6". I can put both feet on the ground, and the seat could be lowered another 2 inches. The step through height is lower than the Rad too. The 3" x 27-1/2" tires are fine for off road, and have noticeably less rolling resistance. I'm very happy with the bike and the support from Biktrix.

Brij Sahni
Excellent ride

Very powerful. Can take the hills like a piece of cake.

Amazing customer service

Shannon and team provide excellent customer service. Always there to answer any questions and concerns. I've found biktrix to have one of the best after and pre sale service. Thank you!

Rob H
Surprisingly excelent

10 out or 10. Outa the box

Dean Bailey
i like the bike

the gears dont shift right going on 9th gear puts it of the sprocket.need to know where i can take for adjustment

Chris Van Sickle
Love the bike!

So far, so good. No issues with delivery and assembling it was dead easy. They even supply decent quality tools, although I just used my own.

This is bike#5 for me, but my 1st ebike. I bought it for commuting/work, basically to replace my car, fully knowing that the cadence sensor wouldn't feel as natural but I wanted the extra torque for towing, etc. I don't love the cadence sensor, but it's easy to get used to. I do appreciate the mid drive motor and having to manage the power through the gearing.

Battery life is pretty awesome. 70k on my first full discharge ride, PAS 2, holding 30-35 the whole way.

In terms of power, it absolutely RIPS. Keeping up with heavy traffic is easy on PAS 3-5, and I cruise in 2. 1 for shared trails so I'm not "that guy". I also like being up high and having that extra periscope of viz in traffic.

Eddy and co answered all my pre-purchase and after purchase questions quickly and succinctly. So far the support has been great.

But I think my other bikes miss me a little.

Kenneth Bennett

Just back from my first bike ride. Love it!!!!!

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