1000W Mid-Drive

Motor Power

160Nm of Torque

Extreme Hills

52V 17Ah 910Wh

est. 70km Range

+5'8ft / 380lb

Max Load

Torque Sensor

Powerful Pedal Assist

25+ Point Quality

Control Checklist

Juggernaut Ultra Duo 2 SO

Name: Juggernaut Ultra Duo 2 Step-Over
Brand: Biktrix Electric Bikes
SKU: JULDSOM264BK2
Price: 3349.0 CAD
Availability: OutOfStock
Rating: 4.44 (96 reviews)

4.4

CA$3,349 CA$6,299

Unlock the full potential of your biking adventures with the Bafang Ultra M620, the most powerful torque sensor electric bike on the market today. Designed for riders who demand the highest levels of performance, power, and versatility, the Bafang Ultra M620 is the ultimate choice for conquering any terrain with confidence.

Features:

1000W Bafang Ultra M620 Mid-drive Motor: Experience unmatched power and performance, ensuring effortless navigation through any terrain.
160Nm of Torque: Conquer even the most extreme hills and trails with ease, thanks to the impressive torque output.
380lb Load Capacity: Carry all your essentials with ease, whether it's gear for a weekend adventure or your daily commute.
On-Demand Throttle: Make pedaling optional and enjoy a leisurely ride with convenient throttle control.
Cadence+Torque Sensor: Experience smooth and powerful pedal assist for a natural riding experience.
Includes 52V 17.5Ah 910Wh Internal Battery + Charger: Ride with confidence knowing you'll have ample power for your longest adventures.

Benefits:

Unrivaled Performance: Conquer any terrain with confidence, thanks to the powerful motor and high torque output.
Effortless Riding: Enjoy a leisurely ride with optional pedaling and convenient throttle control.
Versatile Use: Whether you're commuting to work or exploring rugged trails, the Bafang Ultra M620 is your ultimate companion.
Long-Lasting Power: Ride with confidence knowing you'll have plenty of battery life for your longest adventures.

Experience the thrill of the open road like never before with the Bafang Ultra M620. Order yours today and elevate your biking experience to new heights. Adventure awaits.

Juggernaut Ultra Duo 2 Step-Over Has Been Replaced.

Still Interested in the Juggernaut Ultra Duo Step-Over? Check out the Juggernaut Ultra Duo Step-Over 4 below!

Juggernaut Ultra Duo 4 Step-Over

1	Effective Top Tube Length	570mm	22.4in
2	Seat Tube Length (Classic Bike Size)	420mm	16.5in
3	Reach	460mm	18.1in
4	Stack	560mm	22in
5	Chainstay Length	510mm	20.1in
6	Standover Height	690mm	27.2in
7	Head Angle	71°	-
8	Seat Angle	73.5°	-
9	Head Tube Length	190 mm	7.5 in
10	Fork Length	530mm	20.9in
11	Front Center	700mm	27.6in
12	BB (Bottom Bracket) Drop	70mm	2.8in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1220mm	48in
15	Total Length	2000mm	78.7in
16	Max Seat Height	990mm	39in
17	Min Seat Height	830mm	32.7in
18	Handlebar Height	1120mm	44.1in
19	Weight (Without Battery)	33.1kg	73lb

1	Effective Top Tube Length	610mm	24in
2	Seat Tube Length (Classic Bike Size)	470mm	18.5in
3	Reach	480mm	18.9in
4	Stack	570mm	22.4in
5	Chainstay Length	510mm	20.1in
6	Standover Height	730mm	28.7in
7	Head Angle	71°	-
8	Seat Angle	73.5°	-
9	Head Tube Length	190 mm	7.5 in
10	Fork Length	530mm	20.9in
11	Front Center	710mm	28in
12	BB (Bottom Bracket) Drop	70mm	2.8in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1240mm	48.8in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1040mm	40.9in
17	Min Seat Height	880mm	34.6in
18	Handlebar Height	1140mm	44.9in
19	Weight (Without Battery)	34kg	75lb

1	Effective Top Tube Length	630mm	24.8in
2	Seat Tube Length (Classic Bike Size)	520mm	20.5in
3	Reach	500mm	19.7in
4	Stack	580mm	22.8in
5	Chainstay Length	510mm	20.1in
6	Standover Height	760mm	29.9in
7	Head Angle	71°	-
8	Seat Angle	73.5°	-
9	Head Tube Length	190 mm	7.5 in
10	Fork Length	530mm	20.9in
11	Front Center	720mm	28.3in
12	BB (Bottom Bracket) Drop	70mm	2.8in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1260mm	49.6in
15	Total Length	2040mm	80.3in
16	Max Seat Height	1080mm	42.5in
17	Min Seat Height	920mm	36.2in
18	Handlebar Height	1150mm	45.3in
19	Weight (Without Battery)	34.4kg	75.8lb

1000W Mid-Drive

Motor Power

160Nm of Torque

Extreme Hills

52V 17Ah 910Wh

est. 70km Range

+5'8ft / 380lb

Max Load

Torque Sensor

Powerful Pedal Assist

25+ Point Quality

Control Checklist

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 and preload	Front axle 5mm qr	Seat post clamp Qr
Headset Threadless 1-1/8 1-1/2 tapered	Rear hub 197mm 36h	Motor Bafang ultra m620
Shifter rear Shimano alivio 9 speed trigger shifter	Rear axle 12mm thru	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 Black 36h 26" w/ round cutouts	Display Dpc-18
Cassette 9 speed 12-36t cassette	Tire sizes 26x4", 27.5x3"	Lights Integrated headlight, integrated taillight
Chain Kmc e9s	Handlebar 700mm wide, 50mm rise w/ 31.8mm clamp	Assist type Torque + cadence
Crank set 170mm arms 44t chainring	Stem 90mm solid	Assist levels 1-5
Bottom bracket Bafang ultra isis	Grips Slide-on comfort grips	Throttle Thumb throttle
Brakes Tektro e350 dual-piston brakes w/ 160mm rotors	Saddle Wide saddle	Other Front and rear fenders, rear rack, kickstand
Brake levers Tektro adjustable w/brake cutoffs

Frame 6061 aluminum	Front hub 135mm 36h
Seat post 28.6mm	Fork Rst guide w/75mm travel, lockout and preload
Front axle 5mm qr	Seat post clamp Qr
Headset Threadless 1-1/8 1-1/2 tapered	Rear hub 197mm 36h
Motor Bafang ultra m620	Shifter rear Shimano alivio 9 speed trigger shifter
Rear axle 12mm thru	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 Black 36h 26" w/ round cutouts
Display Dpc-18	Cassette 9 speed 12-36t cassette
Tire sizes 26x4", 27.5x3"	Lights Integrated headlight, integrated taillight
Chain Kmc e9s	Handlebar 700mm wide, 50mm rise w/ 31.8mm clamp
Assist type Torque + cadence	Crank set 170mm arms 44t chainring
Stem 90mm solid	Assist levels 1-5
Bottom bracket Bafang ultra isis	Grips Slide-on comfort grips
Throttle Thumb throttle	Brakes Tektro e350 dual-piston brakes w/ 160mm rotors
Saddle Wide saddle	Other Front and rear fenders, rear rack, kickstand
Brake levers Tektro adjustable w/brake cutoffs

Frame

6061 aluminum

Front hub

135mm 36h

Seat post

28.6mm

Fork

Rst guide w/75mm travel, lockout and preload

Front axle

5mm qr

Seat post clamp

Qr

Headset

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

Rear hub

197mm 36h

Motor

Bafang ultra m620

Shifter rear

Shimano alivio 9 speed trigger shifter

Rear axle

12mm thru

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

Black 36h 26" w/ round cutouts

Display

Dpc-18

Cassette

9 speed 12-36t cassette

Tire sizes

26x4", 27.5x3"

Lights

Integrated headlight, integrated taillight

Chain

Kmc e9s

Handlebar

700mm wide, 50mm rise w/ 31.8mm clamp

Assist type

Torque + cadence

Crank set

170mm arms 44t chainring

Stem

90mm solid

Assist levels

1-5

Bottom bracket

Bafang ultra isis

Grips

Slide-on comfort grips

Throttle

Thumb throttle

Brakes

Tektro e350 dual-piston brakes w/ 160mm rotors

Saddle

Wide saddle

Other

Front and rear fenders, rear rack, kickstand

Brake levers

Tektro adjustable w/brake cutoffs

Size & Fittings

1	Effective Top Tube Length	570mm	22.4in
2	Seat Tube Length (Classic Bike Size)	420mm	16.5in
3	Reach	460mm	18.1in
4	Stack	560mm	22in
5	Chainstay Length	510mm	20.1in
6	Standover Height	690mm	27.2in
7	Head Angle	71°	-
8	Seat Angle	73.5°	-
9	Head Tube Length	190 mm	7.5 in
10	Fork Length	530mm	20.9in
11	Front Center	700mm	27.6in
12	BB (Bottom Bracket) Drop	70mm	2.8in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1220mm	48in
15	Total Length	2000mm	78.7in
16	Max Seat Height	990mm	39in
17	Min Seat Height	830mm	32.7in
18	Handlebar Height	1120mm	44.1in
19	Weight (Without Battery)	33.1kg	73lb

1	Effective Top Tube Length	610mm	24in
2	Seat Tube Length (Classic Bike Size)	470mm	18.5in
3	Reach	480mm	18.9in
4	Stack	570mm	22.4in
5	Chainstay Length	510mm	20.1in
6	Standover Height	730mm	28.7in
7	Head Angle	71°	-
8	Seat Angle	73.5°	-
9	Head Tube Length	190 mm	7.5 in
10	Fork Length	530mm	20.9in
11	Front Center	710mm	28in
12	BB (Bottom Bracket) Drop	70mm	2.8in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1240mm	48.8in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1040mm	40.9in
17	Min Seat Height	880mm	34.6in
18	Handlebar Height	1140mm	44.9in
19	Weight (Without Battery)	34kg	75lb

1	Effective Top Tube Length	630mm	24.8in
2	Seat Tube Length (Classic Bike Size)	520mm	20.5in
3	Reach	500mm	19.7in
4	Stack	580mm	22.8in
5	Chainstay Length	510mm	20.1in
6	Standover Height	760mm	29.9in
7	Head Angle	71°	-
8	Seat Angle	73.5°	-
9	Head Tube Length	190 mm	7.5 in
10	Fork Length	530mm	20.9in
11	Front Center	720mm	28.3in
12	BB (Bottom Bracket) Drop	70mm	2.8in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1260mm	49.6in
15	Total Length	2040mm	80.3in
16	Max Seat Height	1080mm	42.5in
17	Min Seat Height	920mm	36.2in
18	Handlebar Height	1150mm	45.3in
19	Weight (Without Battery)	34.4kg	75.8lb

FAQ & Guides

Manual eBike Display Manuals
Guide Spare Parts Finder
FAQ I just received my eBike, what next?
FAQ I just assembled my eBike, what next?
FAQ Recommended Tire Pressure and Inflation Level
FAQ eBike Battery Care Guide

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Juggernaut Ultra duo 3

Bike had no damage and was packed nice. The chocolate pearl is different but for the price i can live with it. Both tires were almost flat and rear fender bolt on frame was not tightened but easy fixes. Assembly was simple and bike feels lighter than my Juggernaut classic duo step-over, may be the 27.5x 3 tires versus 26x4 on the classic duo. Rear derailer will need to be indexed but shifts smooth and brakes although they are Biktrix brand work well and no noise. Motor is much noisier on this bike than i expected, may just need greased more. Torque sensor is taking some time to get used to versus cadence on my other Biktrix bike. In sport mode or using throttle this bike will move. Very comfortable riding bike with plenty of adjustability. The brake light is a nice touch versus just a tail light. Only 58 miles in 2 rides so far but for the price was a great deal.

Jaggernaut Ultra Duo 2 Step Over

I went on vacation and got home to my new BikTrix Jaggernaut Ultra Duo 2 Step-Over Camo Bike. Was easy to get together and get started. I charged up the battery and put 20 miles on it my first day. This bike is really fun! I am 40 years old but honestly feel like a kid again riding this bike. The customer service was great! They helped me find what would work for me and answered all my question promptly throughout the process. This Bike is awesome!!

Basically a well built bike, but there are issues...

After about 150 miles on my new UD3 I will say, overall, it is a solid, well-built bike. So far the 52V 17.5Ah internal battery averages about 20 miles total range on relatively flat, smooth terrain without much wind, tires at 25psi, at level 3 ECO mode assist mostly, no cargo and a 225 lb. rider. This is well below the hi-lo range Biktrix advertises. The Electric Blue color I ordered as depicted on the website was nothing like the purplish color that was delivered (see overlay photo); but they did issue a $450 refund so I can re-paint the bike to match. The sprung cruiser style seat squeaks loudly and may have been originally designed as a torture device; after the first couple rides, I had to replace it while my blisters healed. This despite my being use to bike seats. Also, there was a shipping delay clearing customs due to an "insufficient commodity description" that took Biktrix a week to rectify.

Thanks!

I don’t need that battery??? (Aphasia)

Great Bike - Quality and Power More Than Expected

Bike assembly was straight forward. Good customer support on a few newby questions. Exceeded expectations. Would definitely recommend

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