Juggernaut Ultra Duo 4 ST | 52V

Sale price CA$3,386 Regular priceCA$4,499
Save CA$1,113
Sale ends in
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🚀 Limited time only: Get a FREE Range Extender Battery.

Act Now! Sale ends Sept 02.

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 75mm/3" to 150mm/6"
Fork
 

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

**The Upgraded Fork options are incompatible with the front fender included with the bike.
Brakes
 

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

*** Magura MT5e upgrade come with a brake rotor upgrade from 180mm to 203mm
Rear Hub
 

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

Headlights
 

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

Note: This is a DIY upgrade upon purchasing the bike. Our Installation Guide for this can be found here.

**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!

Accessories
Coloured Pedals
 

Add some extra flair to your eBike with a set of coloured pedals!

Warranty

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

Sale price CA$3,386.00 Regular priceCA$4,499.00
Shipping: Leaves within Mid January
1000W Mid-Drive

Motor Power

160Nm of Torque

Extreme Hills

52V 17Ah 910Wh

est. 70km Range

+5'6ft / 300lb

Max Load

Torque Sensor

Powerful Pedal Assist

UL Certified

Safety

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.

Ultra Power. Greater Features.

Distance Range (Single Battery)

PAS 1
Pedal-Assist Lv.1
84km Up To
PAS 2
Pedal-Assist Lv.2
70km Up To
PAS 3
Pedal-Assist Lv.3
61km Up To
PAS 4
Pedal-Assist Lv.4
56km Up To
PAS 5
Pedal-Assist Lv.5
50km Up To
THRL
Throttle Only
35km Up To
**Please note that information regarding the expected range on a single stock battery charge on one of our e-bikes is an estimate, not a guarantee. There are many factors that contribute to the actual, real-world range for an e-bike battery such as the age of the battery, temperature, level of assist, speed, payload, and terrain. Depending on these various conditions, it is possible to get less than the expected minimum range or greater than the expected maximum range.

Technical Specifications

Frame
6061 aluminum
Front hub
135mm 36h
Seat post
28.6mm
Fork
Rst guide w/75mm travel, lockout & preload
Front axle
5mm qr
Seat post clamp
Qr
Headset
Threadless 1-1/2" 1-1/8" tapered
Rear hub
190mm 36h
Motor
1000w bafang ultra m620
Shifter rear
Shimano alivio 9 speed trigger
Rear axle
5mm qr
Battery sizes
Total capacity of 52v 34ah 1794wh:
52v 17.5ah 910wh (internal battery) +
up to 52v 17ah 884wh (external range extender battery)
Rear derailleur
Shimano alivio 9 speed
Rims
26" black with round cutouts / 27.5" black solid
Display
Dpc-18
Cassette
9 speed 11-34t cassette
Tire sizes
26x4", 27.5x3"
Lights
Integrated headlight, integrated taillight
Chain
Kmc e9s 124 links
Handlebar
700mm wide, 50mm rise w/31.8mm clamp
Assist type
Torque + cadence
Crank set
44t chainring w/ 170mm arms
Stem
Adjustable stem
Assist levels
0-5
Bottom bracket
Bafang isis
Grips
Slide-on comfort grips
Throttle
Thumb throttle
Brakes
Iiipro e500 quad piston hydraulic w/180mm rotors
Saddle
Wide spring supported comfort saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Adjustable w/ integrated brake cutoffs
Frame
6061 aluminum
Front hub
135mm 36h
Seat post
28.6mm
Fork
Rst guide w/75mm travel, lockout & preload
Front axle
5mm qr
Seat post clamp
Qr
Headset
Threadless 1-1/2" 1-1/8" tapered
Rear hub
190mm 36h
Motor
1000w bafang ultra m620
Shifter rear
Shimano alivio 9 speed trigger
Rear axle
5mm qr
Battery sizes
Total capacity of 52v 34ah 1794wh:
52v 17.5ah 910wh (internal battery) +
up to 52v 17ah 884wh (external range extender battery)
Rear derailleur
Shimano alivio 9 speed
Rims
26" black with round cutouts / 27.5" black solid
Display
Dpc-18
Cassette
9 speed 11-34t cassette
Tire sizes
26x4", 27.5x3"
Lights
Integrated headlight, integrated taillight
Chain
Kmc e9s 124 links
Handlebar
700mm wide, 50mm rise w/31.8mm clamp
Assist type
Torque + cadence
Crank set
44t chainring w/ 170mm arms
Stem
Adjustable stem
Assist levels
0-5
Bottom bracket
Bafang isis
Grips
Slide-on comfort grips
Throttle
Thumb throttle
Brakes
Iiipro e500 quad piston hydraulic w/180mm rotors
Saddle
Wide spring supported comfort saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Adjustable w/ integrated brake cutoffs
Frame
6061 aluminum
Front hub
135mm 36h
Seat post
28.6mm
Fork
Rst guide w/75mm travel, lockout & preload
Front axle
5mm qr
Seat post clamp
Qr
Headset
Threadless 1-1/2" 1-1/8" tapered
Rear hub
190mm 36h
Motor
1000w bafang ultra m620
Shifter rear
Shimano alivio 9 speed trigger
Rear axle
5mm qr
Battery sizes
Total capacity of 52v 34ah 1794wh:
52v 17.5ah 910wh (internal battery) +
up to 52v 17ah 884wh (external range extender battery)
Rear derailleur
Shimano alivio 9 speed
Rims
26" black with round cutouts / 27.5" black solid
Display
Dpc-18
Cassette
9 speed 11-34t cassette
Tire sizes
26x4", 27.5x3"
Lights
Integrated headlight, integrated taillight
Chain
Kmc e9s 124 links
Handlebar
700mm wide, 50mm rise w/31.8mm clamp
Assist type
Torque + cadence
Crank set
44t chainring w/ 170mm arms
Stem
Adjustable stem
Assist levels
0-5
Bottom bracket
Bafang isis
Grips
Slide-on comfort grips
Throttle
Thumb throttle
Brakes
Iiipro e500 quad piston hydraulic w/180mm rotors
Saddle
Wide spring supported comfort saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Adjustable w/ integrated brake cutoffs

Size & Fittings

1
Effective Top Tube Length
560mm 22in
2
Seat Tube Length (Classic Bike Size)
420mm 16.5in
3
Reach
520mm 20.5in
4
Stack
500mm 19.7in
5
Chainstay Length
480mm 18.9in
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
530mm 20.9in
11
Front Center
710mm 28in
12
BB (Bottom Bracket) Drop
40mm 1.6in
13
Fork Offset
30mm 1.2in
14
Wheelbase
1240mm 48.8in
15
Total Length
2000mm 78.7in
16
Max Seat Height
1000mm 39.4in
17
Min Seat Height
830mm 32.7in
18
Handlebar Height
1100mm 43.3in
19
Weight (Without Battery)
33.5kg 73.9lb
1
Effective Top Tube Length
560mm 22in
2
Seat Tube Length (Classic Bike Size)
460mm 18.1in
3
Reach
560mm 22in
4
Stack
520mm 20.5in
5
Chainstay Length
520mm 20.5in
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
530mm 20.9in
11
Front Center
730mm 28.7in
12
BB (Bottom Bracket) Drop
50mm 2in
13
Fork Offset
30mm 1.2in
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
1160mm 45.7in
19
Weight (Without Battery)
34kg 75lb

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Customer Reviews

Based on 125 reviews
74%
(92)
11%
(14)
6%
(7)
5%
(6)
5%
(6)
C
Customer (St. Albert, CA)
Enjoyable ride

Really enjoying my ride have only gotten bike in February. Riding only 5-10 km at a time. Shifts like a dream and all kinds of hill climbing power. Have the 4” tires they work well in snow and now it’s spring they handle well in soft ground. Disappointed in no Biktrix logo.

C
Customer (Washington, US)
Solid Quality

I own four other e-bikes, and sprung for the Juggernaut Ultra Duo 4. I finally can say that I am happy with an e-bike. The Juggernaut Ultra Duo 4 is the perfect bike for my area. I live in Southwestern PA where we have rolling hills everywhere, and most of the are steep and hard to climb even with an e-bike.

It arrived rather fast, it was packaged well and was easy to assemble. There is really no assembly. Just mount the front wheel and handlebars, that is it. Takes about 30-40 minutes including unpacking. I did a once over to ensure everything was tightened, pumped up the tires and plugged in the batteries. They needed several hours to fully charge. There was a small issue the front brake rotor (disc) that was quilckly replaced by Biktrix. It arrived today and it took about 20 minutes to replace. Now I am ready.

We had a sunny warm day today, so I took it out for a 12 mile break in ride on some seriously steep and long hills. I am 60 years old, 6ft tall, 250 lbs, and partially disabled. These e-bikes give me a certain freedom like no other activity. The Juggernaut Ultra Duo 4 is a serious powerhouse and allows me to navigate any roads or prepared paths that we have around here. I was going up hills with over 26% grade like nothing. And the Dual battery configuration will allow me to do that all day long. My other e-bikes would not make the hills leaving me to walk them partially, and after the same 12 mile ride, the batteries were 50% depleted. The Juggernaut Ultra Duo 4 used only 6% I was amazed that I still had 94% after the ride.

The Juggernaut Ultra Duo 4 is solid and very high quality. It shifts smooth, rides smooth, is very comfortable and it looks great. I had one customization by adding the A-Handlebars for a more swept back ride that allows me to sit fully upright when riding. This is a terrific e-bike that finally fulfills my needs and wishes. I love it and I highly recommend it.

G
George F. (Tampa, US)
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.

C
Customer (Toronto, CA)
Revised

After what I would call an unhappy wait for the delivery, we got our bikes
Hub Duo for her
Ultra Duo 3 for me
We must say we are very pleased with the bikes, the service the day we picked them up and the apology for the long wait.
Ryan at the Saskatoon store was exceptionally good as a man to deal with

G
Gerald B. (Winnipeg, CA)
Beast!

I really like this bike as it is an absolute BEAST!

Pros: Solid build; Canadian company; Powerful mid-drive with 52V battery.

Cons: Heavy; Brakes are not optimal; Expensive;

This is my first experience with Biktrix. Very positive. Would recommend based on the journey so far.