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Juggernaut Ultra Duo 4 Step-Thru

Sale price CA$3,799.00 Regular priceCA$6,299.00
Save CA$2,500 Pre-Sale New

🚨 Get a FREE Range Extender Battery(worth CA$549) 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

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 100mm/4" to 150mm/6"
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
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
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
Warranty
BiktrixCare+
 

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

Shipping: Leaves within Late April
Sale price CA$3,799.00 Regular priceCA$6,299.00
Lifetime Support
14 Days Return
Custom Built
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Want to see the bike live?

Book a live showroom demonstration and see the bike live today!

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

PAS 1
Pedal-Assist Lv.1
52mi
PAS 2
Pedal-Assist Lv.2
43mi
PAS 3
Pedal-Assist Lv.3
38mi
PAS 4
Pedal-Assist Lv.4
35mi
PAS 5
Pedal-Assist Lv.5
31mi
THRL
Throttle Only
22mi
**Please note that information regarding the expected range on a single 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 36.5ah 1898wh: 52v 17.5ah 910wh (internal battery) + up to 52v 19ah 988wh (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
Biktrix dual piston hydraulic w/180mm rotors
Saddle
Wide spring supported comfort saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Biktrix 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 36.5ah 1898wh: 52v 17.5ah 910wh (internal battery) + up to 52v 19ah 988wh (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
Biktrix dual piston hydraulic w/180mm rotors
Saddle
Wide spring supported comfort saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Biktrix 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 36.5ah 1898wh: 52v 17.5ah 910wh (internal battery) + up to 52v 19ah 988wh (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
Biktrix dual piston hydraulic w/180mm rotors
Saddle
Wide spring supported comfort saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Biktrix 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 116 reviews
72%
(84)
11%
(13)
5%
(6)
4%
(5)
7%
(8)
E
Eldon Konschuh
Eager to setup and ride

Looking forward to a great spring of riding.
Will update you once I have the opportunity to take the bike out of the box.
EAGER TO RIDE.

E
Ernest Jean
Great bike so far

I purchased a juggernaut ultra duo 4 step through. It was delivered iin good shape there was only a small amount of damage to the box on very bottom.
Assembly was very easy and no adjustments have been required yet. The only problem I had was disc brake disc on front tire. The second battery box was wedged against brake disc on front tire. I have bent the disc slightly to take warp out of the disc. It still rubs so clearly needs more work. I have realy enjoyed riding again. I had bad sarcoidosis which damaged my lungs and have had cancer so having the ability to ride up hills a lot further down trails has opeded up a whole lot of freedom for me personally. It is just wonderful. I live in Northern New England so like Canada it's snow covered here. The 4" tires seem to stick to snow like velcro. I will write again in spring when I can really test it. Thank you biktrix for great product.
Ernest Jean

T
Tony Trenholm
Quality of product

Never used it yet quality seem ok, except for the front forks, very sloppy work on them , sort of ruined the experience of getting thr bike.

C
Charles Reed

It’s sitting pretty
Waiting for spring

D
Desiree Stephens
Amazing Bike

Love the power. Excellent brakes. It handles sand and rough paths like a dream! And handles city cruising like a sports car. Super powerful! Perfect amount of gears and shifts so smoothly! I have no negatives about this bike