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Juggernaut Classic Duo Step-Over

Sale price $2,449.00 Regular price$3,099.00
Save $650

🚨 Get a FREE Range Extender Battery (worth $499) by adding it to your cart and applying the code EXTRA at checkout. Offer for a limited time only.

Delivers the sweet spot for capability and comfort with a mid-drive motor

Range Extender Battery

Add an additional battery to extend your bikes range and give you that boost!

**This option adds an extra battery that mounts on top of the frame that doubles the range of the stock battery.
Motor Power

Program your motor to meet local eBike regulations or opt for unlimited speed and power suitable for off-road use only.


Suspension seatposts offer great riding comfort as they absorb many of the imperfections on the road/trail.


Enhance your safety and control on every ride by upgrading your eBike brakes.

***Tektro and Magura upgrades come with a brake rotor upgrade from 180mm to 203mm.

Illuminate your path to adventure with an upgraded eBike headlight, delivering superior visibility and style for night-time riding.

**The price is discounted from the regular price of $300
Biktrix A-Bars

The swept-back design provides an upright riding position with multiple comfortable hand positions so you can enjoy further and more frequent rides!


Secure your investment by opting for an extended warranty through the BiktrixCare+ plan.

Shipping: Leaves within 6-7 business days
Sale price $2,449.00 Regular price$3,099.00
Lifetime Support
14 Days Return
Custom Built
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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.

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, 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

front hub

135mm 36h

seat post



Rst guide w/75mm travel, lockout and preload

front axle

5mm qr

seat post clamp



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

rear hub

170mm 36h


750w bbs02 mid-drive

shifter rear

Shimano alivo 9 speed trigger shifter

rear axle

5mm qr

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


Black 36h




9-speed 12-36t cassette

tire sizes

26x4", 27.5x3"


Integrated headlight, taillight


Kmc x9


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


Tektro e350 dual piston w/180mm rotors


Wide saddle


Front and rear fenders, rear rack, kickstand

brake levers

Tektro adjustable

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 135 reviews
Zach J.
"Juggernaut" is right! It's the Juggernaut, b****!

This bike isn't perfect, but it's a blast. This bike is a beast, it has not stopped. I can ride through anything. The motor is so powerful I can ride up an unbelievably steep hill with the throttle alone. Riding up stairs? Check. I ride through bushes, boulders without issue.

- powerful as heck
- can take a beating
- great battery capacity
- plenty of acceleration and stopping power
- powder coated black, looks great, gets lots of comments
- front suspension is great
- upgraded light makes it easy to crush bushes at night
- PIN protected startup makes me feel better about potential theft resale

Cons (none of these are that bad):
- throttle is not clean at all - a very slight amount of throttle will make the bike jump and accelerate too quickly to be used to creep or nudge forward
- frame has a little flex which makes the battery a bit squeaky
- software is a little slow (interface is slow to reflect my speed as I accelerate/slow down, can be slow to respond to assist changes)
- fenders will get tweaked if the bike falls, you'll need to tweak them back into place (this is probably an unavoidable issue which will be true for any bike)
- some kind of software glitch (integer overflow?) makes my bike show that I have 4.2 million miles on the odometer

I would recommend this bike to anyone who wants an unstoppable, fun, versatile bike.

John Hilliard
Steep hills

I’ve got 11 degree to 14 degree inclines for 1.5 miles. . Even 20 degree incline for a half mile- and so I’m going to switch to an Ultra Duo with the biggest battery. Santa Barbara has incredible bike rides but they can be tough.


We got to rent some bikes before we bought. A lot of fun even in November. I like the 4 in tires

anthony Corrado
Juggernaut Classic Duo Step-Thru

This bike is more comfortable for 50+ mile rail trail riding than my FS mountain bike. No need for a step over since this bike is not going off road.
The 750watt mid motor is my favorite setup.

Real Bessette

Juggernaut Classic Duo Step-Thru

Jeremy Davis
Great All-Purpose Bike

The Classic Duo rocks! Despite its weight and 4” tires, this ebike is very nimble and, with nine gears on the hub, it’s easy to pedal on PAS 0 (which I did on a recent 5-mile ride.) The mid-drive motor is very torquey and zooms up any hill with ease. Where I live IS very hilly yet I rode 86 km on my first full battery charge.

Duane Browne
Great Product!

Everything was delivered as promised with no damage in the box. It took be about 1 hr to put everything together and made sure everything was working correctly. I love this bike so far, I have a put about 130 miles on it in about 2 weeks. And it's getting great range with that mid drive setup.

Mark Cairney
Awesome bike

I was a bit intimidated by the size and power of the bike on my first short outing. Second time out was perfect. I loved riding it and didn’t want to go home. The peddle assist is amazing. I only used peddle assist 1 as it was more than enough assistance for most of the ride but you sure appreciate the higher assists on steep hills. You definitely want to have mirrors on the bike for road riding though. You can get moving pretty quick and want to be aware of other vehicles.

Jeremiah Shearer

I am happy with the bike as a whole, however the derailleur needed major adjustments. this resulted in a broken chain, repair costs, and now the bike is in the shop for a derailleur job for additional cost.