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Juggernaut Ultra Duo 3 Step-Thru

Sale price $2,949.00 Regular price$4,699.00

Biktrix Holiday Sale! No Code needed. $1750 off MSRP. Limited stock 🚨

Our signature mix of comfort and control with the powerhouse Ultra motor

Coral Pearl
Packages
Battery
Range Extender Battery
 

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

Upgrades
Motor Power
 

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

Seatpost
 

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

***Adding a suspension seatpost to your eBike will increase the minimum seatpost height by 100mm/4" to 150mm/6"
Fork
 

Elevate your ride's comfort and control by upgrading your ebike fork, ensuring a smoother journey over any terrain.

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

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

***Tektro and Magura upgrades come with a brake rotor upgrade from 160mm to 203mm
Headlights
 

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.
Rear Hub
 

Upgrade your eBike's rear hub for a smoother, more efficient ride, unlocking enhanced performance and reliability with every pedal.

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!

Warranty
BiktrixCare+
 

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

Shipping: Leaves within 6-7 business days
Sale price $2,949.00 Regular price$4,699.00
Lifetime support
14 Days Return
Custom Built

90+

Miles Range

160Nm

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.

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, 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 coil spring fork provides 100mm of travel with pre-load and lockout adjustability

Drivetrain

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

1 Effective Top Tube Length 590mm 23.2in
2 Seat Tube Length (Classic Bike Size) 420mm 16.5in
3 Reach 440mm 17.3in
4 Stack 660mm 26in
5 Chainstay Length 500mm 19.7in
6 Standover Height 690mm 27.2in
7 Head Angle 70° -
8 Seat Angle 73° -
9 Head Tube Length 180 mm 7.1 in
10 Fork Length 540mm 21.3in
11 Front Center 720mm 28.3in
12 BB (Bottom Bracket) Drop 60mm 2.4in
13 Fork Offset 40mm 1.6in
14 Wheelbase 1230mm 48.4in
15 Total Length 2000mm 78.7in
16 Max Seat Height 1000mm 39.4in
17 Min Seat Height 830mm 32.7in
18 Handlebar Height 1120mm 44.1in
19 Weight (Without Battery) 34kg 75lb
1 Effective Top Tube Length 580mm 22.8in
2 Seat Tube Length (Classic Bike Size) 420mm 16.5in
3 Reach 580mm 22.8in
4 Stack 490mm 19.3in
5 Chainstay Length 480mm 18.9in
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 540mm 21.3in
11 Front Center 710mm 28in
12 BB (Bottom Bracket) Drop 40mm 1.6in
13 Fork Offset 40mm 1.6in
14 Wheelbase 1240mm 48.8in
15 Total Length 1960mm 77.2in
16 Max Seat Height 1000mm 39.4in
17 Min Seat Height 830mm 32.7in
18 Handlebar Height 1160mm 45.7in
19 Weight (Without Battery) 34kg 75lb
1 Effective Top Tube Length 590mm 23.2in
2 Seat Tube Length (Classic Bike Size) 470mm 18.5in
3 Reach 440mm 17.3in
4 Stack 660mm 26in
5 Chainstay Length 510mm 20.1in
6 Standover Height 730mm 28.7in
7 Head Angle 70° -
8 Seat Angle 73° -
9 Head Tube Length 180 mm 7.1 in
10 Fork Length 540mm 21.3in
11 Front Center 730mm 28.7in
12 BB (Bottom Bracket) Drop 60mm 2.4in
13 Fork Offset 40mm 1.6in
14 Wheelbase 1230mm 48.4in
15 Total Length 2000mm 78.7in
16 Max Seat Height 1050mm 41.3in
17 Min Seat Height 880mm 34.6in
18 Handlebar Height 1140mm 44.9in
19 Weight (Without Battery) 35kg 77.2lb
1 Effective Top Tube Length 540mm 21.3in
2 Seat Tube Length (Classic Bike Size) 460mm 18.1in
3 Reach 500mm 19.7in
4 Stack 540mm 21.3in
5 Chainstay Length 520mm 20.5in
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 540mm 21.3in
11 Front Center 730mm 28.7in
12 BB (Bottom Bracket) Drop 50mm 2in
13 Fork Offset 40mm 1.6in
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 1100mm 43.3in
19 Weight (Without Battery) 35kg 77.2lb

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Customer Reviews

Based on 109 reviews
72%
(79)
11%
(12)
5%
(5)
5%
(5)
7%
(8)
J
James Wolford
Juggernaut Ultra Duo 4 Step-Thru?

Lots of power. Easy to assemble . So far I haven't put many K on the bike.

R
Richard Meissner
Love the bike👍😊

Riding the bike with the mid drive is great. I was use to have a hub drive. I can tell I’m going to love this bike.

G
George Felegy
A lot of ebike

The bike is heavy and fast. It runs and rides like a small electric motorcycle which for me ( a motorcyclist for many years), it is perfect. For a novice ebike rider it may be too much bike to handle. Going from a lightweight regular bike to this might be overwhelming. The weight, wide 3” tires, and raw power is a handful, but an absolute blast if handled properly. I love it.

D
D.I.
Quality built bikes and fantastic customer service

Bought the Ultra Duo 4. Its a hill climbing machine.
and the customer service is next to none.
5 star +.

C
Craig Mottice

All that I expected and more! Plus, excellent customer service.

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
[****]

T
Tim Wright
Ultra 3

Fantastic bike. Easy assembly BUT check your tire pressure! I forgot to do that at the end of assembly and was wondering why on a 30km ride I was using 25% if my dual batteries. Well there was only 5 psi in the tires. Lol. Since filling them to 18 psi the same ride now uses 4%. It’s a fun exciting ride and I’m 69.

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