Juggernaut Hub Duo Pro ST

Sale price £1,820

Juggernaut Hub Duo Pro Step-Thru Has Been Replaced.

This model has been replaced by the Juggernaut Hub Duo 2 - check it out below!

Juggernaut Hub Duo 2
750W Hub-Drive

Motor Power

52V 20Ah 1040Wh

est. 85mi Range

+5'0"ft / 330lb

Max Load

Torque Sensor

Powerful Pedal Assist

25+ Point Quality

Control Checklist

New Hub Duo. New Pro Components

The new Hub Duo Pro sports a larger battery capacity to take you even further on your rides! Combine that with a center-mounted display and the other tried and true Hub Duo components and you have a solid, reliable eBike that can take you everywhere in style!

From Step-Thru to Step-Over in Seconds

Meet the SwapTop Frame - a game-changing frame design that we’ve worked on for the past two years. While owning a bike, we’ve often found instances where we wished that we had the versatility of changing between step-thru and step-over frames.

Performance. Fully Loaded.

See The Differences

See the highlight differences between the Juggernaut Hub Duo and Juggernaut Hub Duo Pro, showcasing variations in power, torque, and additional features that distinguish the Pro model as the more advanced option.

Hub

Juggernaut Hub Duo

Starting at £1,999.00

  • Step-Over OR Step-Thru Frame
  • 52V17Ah Downtube Battery
  • Trailers require aftermarket attachments
  • Side Mounted Colour LCD Display
  • 75mm Travel RST Guide Suspension Fork
Hub Pro

Juggernaut Hub Duo Pro

Starting at £2,199.00

  • Swap-Top Frame – can be Step-Over OR Step-Thru
  • 52V20Ah Downtube Battery – 17% Capacity Increase!
  • Trailer Attachments Integrated into the frame
  • Full colour, center-mounted LCD Display
  • 95mm Travel RST Guide Suspension Fork

Distance Range (Single Battery)

PAS 1
Pedal-Assist Lv.1
120km Up To
PAS 2
Pedal-Assist Lv.2
87km Up To
PAS 3
Pedal-Assist Lv.3
65km Up To
PAS 4
Pedal-Assist Lv.4
59km Up To
PAS 5
Pedal-Assist Lv.5
53km Up To
THRL
Throttle Only
46km 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 swap-top frame
Front hub
135mm 36h bolt-on
Seat post
31.6mm
Fork
Rst guide suspension fork w/95mm travel, lockout and preload
Front axle
Bolt-on
Seat post clamp
38mm qr
Headset
Threadless 1-1/2" 1-1/8"
Rear hub
Motor
Motor
750w rear-hub motor
Shifter rear
Shimano alivio 9 speed trigger shifter
Rear axle
Bolt-on
Battery sizes
Total capacity of 52v 37ah 1924wh:
52v 20ah 1040wh (internal battery) +
up to 52v 17ah 910wh (external range extender battery)
Rear derailleur
Shimano alivio 9 speed
Rims
Solid black 36h
Display
Kd718 colour display
Cassette
11-34t 9 speed cassette
Tire sizes
Kenda 26x4, kenda 27.5x3, kenda 24x4
Lights
Integrated headlight, integrated taillight
Chain
Kmc z9 - 126 links
Handlebar
780mm wide, 8° rise, 9° backsweet w/31.8mm clamp
Assist type
Torque + cadence
Crank set
44t chainring w/ 170mm arms
Stem
110mm adjustable w/31.8mm clamp
Assist levels
1-5 (1-3, 1-7, 1-9)
Bottom bracket
Square tapered w/ integrated torque sensor
Grips
Bolt-on mtb grips
Throttle
Trigger style thumb throttle
Brakes
Star-union dual-piston hydraulic w/180mm rotors
Saddle
Velo spring supported wide saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Adjustable w/ integrated brake cutoffs
Frame
6061 aluminum swap-top frame
Front hub
135mm 36h bolt-on
Seat post
31.6mm
Fork
Rst guide suspension fork w/95mm travel, lockout and preload
Front axle
Bolt-on
Seat post clamp
38mm qr
Headset
Threadless 1-1/2" 1-1/8"
Rear hub
Motor
Motor
750w rear-hub motor
Shifter rear
Shimano alivio 9 speed trigger shifter
Rear axle
Bolt-on
Battery sizes
Total capacity of 52v 37ah 1924wh:
52v 20ah 1040wh (internal battery) +
up to 52v 17ah 910wh (external range extender battery)
Rear derailleur
Shimano alivio 9 speed
Rims
Solid black 36h
Display
Kd718 colour display
Cassette
11-34t 9 speed cassette
Tire sizes
Kenda 26x4, kenda 27.5x3, kenda 24x4
Lights
Integrated headlight, integrated taillight
Chain
Kmc z9 - 126 links
Handlebar
780mm wide, 8° rise, 9° backsweet w/31.8mm clamp
Assist type
Torque + cadence
Crank set
44t chainring w/ 170mm arms
Stem
110mm adjustable w/31.8mm clamp
Assist levels
1-5 (1-3, 1-7, 1-9)
Bottom bracket
Square tapered w/ integrated torque sensor
Grips
Bolt-on mtb grips
Throttle
Trigger style thumb throttle
Brakes
Star-union dual-piston hydraulic w/180mm rotors
Saddle
Velo spring supported wide saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Adjustable w/ integrated brake cutoffs
Frame
6061 aluminum swap-top frame
Front hub
135mm 36h bolt-on
Seat post
31.6mm
Fork
Rst guide suspension fork w/95mm travel, lockout and preload
Front axle
Bolt-on
Seat post clamp
38mm qr
Headset
Threadless 1-1/2" 1-1/8"
Rear hub
Motor
Motor
750w rear-hub motor
Shifter rear
Shimano alivio 9 speed trigger shifter
Rear axle
Bolt-on
Battery sizes
Total capacity of 52v 37ah 1924wh:
52v 20ah 1040wh (internal battery) +
up to 52v 17ah 910wh (external range extender battery)
Rear derailleur
Shimano alivio 9 speed
Rims
Solid black 36h
Display
Kd718 colour display
Cassette
11-34t 9 speed cassette
Tire sizes
Kenda 26x4, kenda 27.5x3, kenda 24x4
Lights
Integrated headlight, integrated taillight
Chain
Kmc z9 - 126 links
Handlebar
780mm wide, 8° rise, 9° backsweet w/31.8mm clamp
Assist type
Torque + cadence
Crank set
44t chainring w/ 170mm arms
Stem
110mm adjustable w/31.8mm clamp
Assist levels
1-5 (1-3, 1-7, 1-9)
Bottom bracket
Square tapered w/ integrated torque sensor
Grips
Bolt-on mtb grips
Throttle
Trigger style thumb throttle
Brakes
Star-union dual-piston hydraulic w/180mm rotors
Saddle
Velo spring supported wide saddle
Other
Front and rear fenders, kickstand, rear rack
Brake levers
Adjustable w/ integrated brake cutoffs

Size & Fittings

1
Effective Top Tube Length
580mm 22.8in
2
Seat Tube Length (Classic Bike Size)
410mm 16.1in
3
Reach
440mm 17.3in
4
Stack
660mm 26in
5
Chainstay Length
485mm 19.1in
6
Standover Height
500mm 19.7in
7
Head Angle
65° -
8
Seat Angle
74.5° -
9
Head Tube Length
150 mm 5.9 in
10
Fork Length
530mm 20.9in
11
Front Center
770mm 30.3in
12
BB (Bottom Bracket) Drop
60mm 2.4in
13
Fork Offset
50mm 2in
14
Wheelbase
1250mm 49.2in
15
Total Length
1950mm 76.8in
16
Max Seat Height
910mm 35.8in
17
Min Seat Height
760mm 29.9in
18
Handlebar Height
1080mm 42.5in
19
Weight (Without Battery)
30.4kg 67lb
1
Effective Top Tube Length
580mm 22.8in
2
Seat Tube Length (Classic Bike Size)
460mm 18.1in
3
Reach
440mm 17.3in
4
Stack
660mm 26in
5
Chainstay Length
500mm 19.7in
6
Standover Height
520mm 20.5in
7
Head Angle
65° -
8
Seat Angle
74.5° -
9
Head Tube Length
150 mm 5.9 in
10
Fork Length
530mm 20.9in
11
Front Center
770mm 30.3in
12
BB (Bottom Bracket) Drop
60mm 2.4in
13
Fork Offset
50mm 2in
14
Wheelbase
1300mm 51.2in
15
Total Length
2040mm 80.3in
16
Max Seat Height
1000mm 39.4in
17
Min Seat Height
860mm 33.9in
18
Handlebar Height
1100mm 43.3in
19
Weight (Without Battery)
30.8kg 67.9lb

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Customer Reviews

Based on 57 reviews
60%
(34)
25%
(14)
7%
(4)
2%
(1)
7%
(4)
s
shayla a.
Juggernaut

This electric bike is very jerky compared to the other electric bike we own made by a different company. The ride is not smooth because when you change gears or add assistance it feel rough. Also the kick stand is one sided. Its nice to have a double/dual kick stand since bike is so heavy.

R
Robert J.
How was the performance of the bike?:
Poor
Excellent
How was the comforability of the ride?:
Uncomfortable
Very Comfortable
How is the build quality?:
Poor
Excellent
Wife loves it

This was purchased as a Christmas gift for my wife. We already own a pair of Juggernaut Classic Duos, but she's been having a hard time with the top bar on her 17" version. We purchased the step through in order to help this, and also the 17" frame that comes with the 24x4 tires which also helped with height.

This is the sweet spot. My wife flat out loves the 24" tire size and step through frame, as she fits well on the bike. She has ridden it on our local gravel roads darn near every day for over a week even in the cold weather. She's put 18 miles on it just riding locally up and down the road.

A couple years ago when we bought our Classics, the step through wasn't available (out of stock). We were sure we wanted the mid-drives. Turns out my wife doesn't like trying to keep it in the correct gear for the mid-drive and the hub drive is the easy button. Plenty of power, faster than we thought, smooth.

We'll see how it holds up, as we've ordered a Roguehawk for myself and plan on selling our Classics because we think the hub drives are a better fit (I'll be towing a dog trailer).

Only issue I've found, is the middle rear fender has a screw that's a little too long. it's bottomed in the hole, but isn't tight to the fender so threads are showing. The lower one is fine, and the ones further rearward are fine. Other than that the A-bar we ordered was already on the bike, the original bar was in the box, and it came out with the shifter already adjusted and working. Put it together and she's been riding it since. Did change the stock seat for a thudbuster seat post and Cloud 9 seat that came from her Classic.

Hoping for a really good year of riding this year.

J
John S.
It’s a good bike, but the size chart recommendation is wrong

The size chart says 5’10” with 31+ inseam or taller for the large. I would recommend at least 34”+ inseam if you want to get your leg over the bar.

G
Gary J.B.
Juggernaut review

Overall, I was pleased with the purchase, and I am enjoying the bike. My feedback / concerns are- no owner's manual came with the bike, the display module is not what I expected, wobble in front wheel, generic YouTube searches required (minus owner's manual) to answer questions and trouble shoot. Detail: If you buy a cheap power tool you get a owner's manual. This $3,600 bike came with nothing. Thus, no instruction on battery use (e.g. use of power button on reserve battery) I did find on Biktrix youtube vid about the batteries -but no mention of when to use the power button when fully charged and installed on the bike; also, no trouble shooting guide for subjects such as wheel wobble and etc.; no parts list / schematic. The display module is nothing like what I saw on the ordering web page and was expecting. In addition, the supplied module installed from Biktrix was installed upside down -why because it doesn't fit the handle bar design. To make use, I have it wedged on the bar and hope that it stays put while riding. In short, it has taken some time to sort out issues. Not a big deal, but not what I expected.

P
Perry T.
Sticking throttle. Pedal assist not working correctly

Will get more details when they become available.

g
gerret d.
great bike

I have about 160 miles on the bike after a few weeks, all dirt roads, and the bike is everything I need.I like the torque sensor a lot, 27.5 x 3 tires are perfect for me, wish the display screen was a bit larger but good enough, and will eventually put on a twist throttle that I had on a previous, non Bixtrix bike. All in all great bike. I thoroughly studied all bikes in this price range and and happy I got this one!

K
Kirk R.
Cindy's New Ride

Really happy with this bike functionally and overall. Was really disappointed that Biktrix sent a beautiful green frame that was obviously dinged and sloppily touched up by someone at the factory; really surprised given the price and reputation of Biktrix. Wish I'd have upgraded the headlight, which is very wimpy.

S
Steven S.
New hub duo

Short version,a10 + . Long version battery cover was off on arrival and fell off on my first ride. It is now taped in place and needs a permanent fix. Thumb throttle is an on/off switch. Can I just unplug. I twist throttle would be better. To summarize, riding is a blast. Steve

r
robert g.
Excellent bike

Great bike, has a lot of power for uphill when using the assist. Instructions for assembly weren’t fantastic but it’s fairly easy to figure out. My kickstand broke 2 days after I received it and I was already sent a replacement. Really comfy ride. So far, really enjoying it!