Juggernaut Ultra Duo 4 ST | 52V

Sale price CA$3,799 Regular priceCA$4,199
Save CA$400
Sale ends in
d h m s

🚀 Limited time only: Get a FREE Range Extender Battery.

Act Now! Sale ends Sept 02.

Emerald Green
Packages
Battery
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.
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"
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.
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
Drive Train
 

Unmatched power, smooth performance, and eco-friendly commuting in one seamless package.

**Drivetrain upgrade included Shifter, Cassette, Derailleur and Chain
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!

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$3,799.00 Regular priceCA$4,199.00
Shipping: Leaves within 6-7 business days
1000W Mid-Drive

Motor Power

160Nm of Torque

Extreme Hills

52V 17Ah 910Wh

est. 70km Range

+5'6ft / 330lb

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
PAS 2
Pedal-Assist Lv.2
70km
PAS 3
Pedal-Assist Lv.3
61km
PAS 4
Pedal-Assist Lv.4
56km
PAS 5
Pedal-Assist Lv.5
50km
THRL
Throttle Only
35km
**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)
G
Gerald Brennan
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.

R
Randall Lobb
A joy to ride

It is addictive and makes me feel sad for my old MTB, which sits there much more ignored than ridden..

M
Mark Freudenberg
Great Bike with Unbelievable Range

Recently bought an Ultra Duo 4 with the extended battery. I've had other ebikes and I've always worried about the range and it affected how I ride. I took this one on a ride over the Golden Gate Bridge up to the Headlands and back for about a 25 mile ride. Not only was I never in remotely worried about the battery level (it was around 88% by the time I was done), but I never wanted for more power while climbing the hills. It was amazing and really fun.

D
DAB
Juggernaut Ultra Duo 4 Step-Thru

The best hunting ebike on the market! A great overall ebike at a great price! Great sales staff n service.

D
Dan Sutton
Ultra 4

Didn’t get tge unlimited setting because of Mathews recommendation
Big mistake
Now I’m having issues getting it unlocked