1000W Mid-Drive

Motor Power

52V 17Ah 910Wh

est. 45mi Range

+5'8ft / 265lb

Max Load

Torque Sensor

Powerful Pedal Assist

25+ Point Quality

Control Checklist

Juggernaut Ultra FS Pro

Name: Juggernaut Ultra FS Pro
Brand: juggernaut-ultra-fs-pro
SKU: JULFSPM264BZ
Price: 3499.0 USD
Availability: OutOfStock
Rating: 4.75 (262 reviews)

4.7

$3,499 USD $4,499 USD

Juggernaut Ultra FS Pro Has Been Replaced.

Looking for the latest Full Suspension eBike from Biktrix? Check out the Juggernaut Ultra FS Pro 3!

Juggernaut Ultra FS Pro 3

1	Effective Top Tube Length	610mm	24in
2	Seat Tube Length (Classic Bike Size)	430mm	16.9in
3	Reach	530mm	20.9in
4	Stack	590mm	23.2in
5	Chainstay Length	470mm	18.5in
6	Standover Height	700mm	27.6in
7	Head Angle	67°	-
8	Seat Angle	71°	-
9	Head Tube Length	140 mm	5.5 in
10	Fork Length	570mm	22.4in
11	Front Center	815mm	32.1in
12	BB (Bottom Bracket) Drop	75mm	3in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1280mm	50.4in
15	Total Length	2000mm	78.7in
16	Max Seat Height	1020mm	40.2in
17	Min Seat Height	840mm	33.1in
18	Handlebar Height	1060mm	41.7in
19	Weight (Without Battery)	27.7kg	61.1lb

1	Effective Top Tube Length	610mm	24in
2	Seat Tube Length (Classic Bike Size)	430mm	16.9in
3	Reach	520mm	20.5in
4	Stack	540mm	21.3in
5	Chainstay Length	500mm	19.7in
6	Standover Height	720mm	28.3in
7	Head Angle	63°	-
8	Seat Angle	72°	-
9	Head Tube Length	150 mm	5.9 in
10	Fork Length	570mm	22.4in
11	Front Center	820mm	32.3in
12	BB (Bottom Bracket) Drop	85mm	3.3in
13	Fork Offset	30mm	1.2in
14	Wheelbase	1300mm	51.2in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1050mm	41.3in
17	Min Seat Height	910mm	35.8in
18	Handlebar Height	1080mm	42.5in
19	Weight (Without Battery)	32.6kg	71.9lb

1	Effective Top Tube Length	620mm	24.4in
2	Seat Tube Length (Classic Bike Size)	470mm	18.5in
3	Reach	540mm	21.3in
4	Stack	590mm	23.2in
5	Chainstay Length	470mm	18.5in
6	Standover Height	710mm	28in
7	Head Angle	67°	-
8	Seat Angle	71°	-
9	Head Tube Length	140 mm	5.5 in
10	Fork Length	570mm	22.4in
11	Front Center	815mm	32.1in
12	BB (Bottom Bracket) Drop	75mm	3in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1300mm	51.2in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1050mm	41.3in
17	Min Seat Height	870mm	34.3in
18	Handlebar Height	1060mm	41.7in
19	Weight (Without Battery)	28kg	61.7lb

1	Effective Top Tube Length	620mm	24.4in
2	Seat Tube Length (Classic Bike Size)	470mm	18.5in
3	Reach	530mm	20.9in
4	Stack	540mm	21.3in
5	Chainstay Length	500mm	19.7in
6	Standover Height	720mm	28.3in
7	Head Angle	63°	-
8	Seat Angle	72°	-
9	Head Tube Length	150 mm	5.9 in
10	Fork Length	570mm	22.4in
11	Front Center	820mm	32.3in
12	BB (Bottom Bracket) Drop	85mm	3.3in
13	Fork Offset	30mm	1.2in
14	Wheelbase	1310mm	51.6in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1080mm	42.5in
17	Min Seat Height	940mm	37in
18	Handlebar Height	1080mm	42.5in
19	Weight (Without Battery)	32.8kg	72.3lb

1000W Mid-Drive

Motor Power

52V 17Ah 910Wh

est. 45mi Range

+5'8ft / 265lb

Max Load

Torque Sensor

Powerful Pedal Assist

25+ Point Quality

Control Checklist

Technical Specifications

Frame 6061 aluminum	Front hub 150mm 36h (fat)/110mm 36h (boost)	Seat post 31.6mm
Fork Rst renegade w/100mm travel, preload and lockout (fat)/rst titan w/140mm travel, preload and lockout (boost)	Front axle 15mm thru-qr	Seat post clamp Qr
Headset Threadless 1-1/8 1-1/2 tapered	Rear hub 197mm 36h (fat)/148mm 36h (boost)	Motor Bafang ultra m620
Shifter rear Sram nx 11 speed trigger	Rear axle 12mm thru axle	Battery sizes 52v 17.5ah 910wh hidden battery
Rear derailleur Sram nx 11 speed	Rims Black 26" 36h (fat)/black 27.5" 36h (boost)	Display Dpc-18
Cassette Sram 11-42t	Tire sizes 26x4" (fat)/27.5x3" (boost)	Lights Integrated headlight
Chain Kmc x11e	Handlebar 700mm wide w/31.8mm clamp	Assist type Torque + cadence
Crank set 40t chainring w/170mm arms, no chainguard	Stem Promax 70mm (fat)/promax 90mm (boost)	Assist levels 1-5
Bottom bracket Bafang isis	Grips Velo mtb bolt-on grips	Throttle Thumb throttle
Brakes Tektro e725 quad piston hydraulic w/203mm rotors	Saddle Sellaroyal seto s1	Other Rockshox monarch rl rear suspension w/ 44mm travel + 184mm eye-to-eye, clamp on kickstand
Brake levers Tektro w/ adjustable reach and motor cutoffs	Rear suspension Rockshox monarch rl rear suspension w/ 44mm travel 184mm eye-to-eye

Frame 6061 aluminum	Front hub 150mm 36h (fat)/110mm 36h (boost)
Seat post 31.6mm	Fork Rst renegade w/100mm travel, preload and lockout (fat)/rst titan w/140mm travel, preload and lockout (boost)
Front axle 15mm thru-qr	Seat post clamp Qr
Headset Threadless 1-1/8 1-1/2 tapered	Rear hub 197mm 36h (fat)/148mm 36h (boost)
Motor Bafang ultra m620	Shifter rear Sram nx 11 speed trigger
Rear axle 12mm thru axle	Battery sizes 52v 17.5ah 910wh hidden battery
Rear derailleur Sram nx 11 speed	Rims Black 26" 36h (fat)/black 27.5" 36h (boost)
Display Dpc-18	Cassette Sram 11-42t
Tire sizes 26x4" (fat)/27.5x3" (boost)	Lights Integrated headlight
Chain Kmc x11e	Handlebar 700mm wide w/31.8mm clamp
Assist type Torque + cadence	Crank set 40t chainring w/170mm arms, no chainguard
Stem Promax 70mm (fat)/promax 90mm (boost)	Assist levels 1-5
Bottom bracket Bafang isis	Grips Velo mtb bolt-on grips
Throttle Thumb throttle	Brakes Tektro e725 quad piston hydraulic w/203mm rotors
Saddle Sellaroyal seto s1	Other Rockshox monarch rl rear suspension w/ 44mm travel + 184mm eye-to-eye, clamp on kickstand
Brake levers Tektro w/ adjustable reach and motor cutoffs	Rear suspension Rockshox monarch rl rear suspension w/ 44mm travel 184mm eye-to-eye

Frame

6061 aluminum

Front hub

150mm 36h (fat)/110mm 36h (boost)

Seat post

31.6mm

Fork

Rst renegade w/100mm travel, preload and lockout (fat)/rst titan w/140mm travel, preload and lockout (boost)

Front axle

15mm thru-qr

Seat post clamp

Qr

Headset

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

Rear hub

197mm 36h (fat)/148mm 36h (boost)

Motor

Bafang ultra m620

Shifter rear

Sram nx 11 speed trigger

Rear axle

12mm thru axle

Battery sizes

52v 17.5ah 910wh hidden battery

Rear derailleur

Sram nx 11 speed

Rims

Black 26" 36h (fat)/black 27.5" 36h (boost)

Display

Dpc-18

Cassette

Sram 11-42t

Tire sizes

26x4" (fat)/27.5x3" (boost)

Lights

Integrated headlight

Chain

Kmc x11e

Handlebar

700mm wide w/31.8mm clamp

Assist type

Torque + cadence

Crank set

40t chainring w/170mm arms, no chainguard

Stem

Promax 70mm (fat)/promax 90mm (boost)

Assist levels

1-5

Bottom bracket

Bafang isis

Grips

Velo mtb bolt-on grips

Throttle

Thumb throttle

Brakes

Tektro e725 quad piston hydraulic w/203mm rotors

Saddle

Sellaroyal seto s1

Other

Rockshox monarch rl rear suspension w/ 44mm travel + 184mm eye-to-eye, clamp on kickstand

Brake levers

Tektro w/ adjustable reach and motor cutoffs

Rear suspension

Rockshox monarch rl rear suspension w/ 44mm travel 184mm eye-to-eye

Size & Fittings

1	Effective Top Tube Length	610mm	24in
2	Seat Tube Length (Classic Bike Size)	430mm	16.9in
3	Reach	530mm	20.9in
4	Stack	590mm	23.2in
5	Chainstay Length	470mm	18.5in
6	Standover Height	700mm	27.6in
7	Head Angle	67°	-
8	Seat Angle	71°	-
9	Head Tube Length	140 mm	5.5 in
10	Fork Length	570mm	22.4in
11	Front Center	815mm	32.1in
12	BB (Bottom Bracket) Drop	75mm	3in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1280mm	50.4in
15	Total Length	2000mm	78.7in
16	Max Seat Height	1020mm	40.2in
17	Min Seat Height	840mm	33.1in
18	Handlebar Height	1060mm	41.7in
19	Weight (Without Battery)	27.7kg	61.1lb

1	Effective Top Tube Length	610mm	24in
2	Seat Tube Length (Classic Bike Size)	430mm	16.9in
3	Reach	520mm	20.5in
4	Stack	540mm	21.3in
5	Chainstay Length	500mm	19.7in
6	Standover Height	720mm	28.3in
7	Head Angle	63°	-
8	Seat Angle	72°	-
9	Head Tube Length	150 mm	5.9 in
10	Fork Length	570mm	22.4in
11	Front Center	820mm	32.3in
12	BB (Bottom Bracket) Drop	85mm	3.3in
13	Fork Offset	30mm	1.2in
14	Wheelbase	1300mm	51.2in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1050mm	41.3in
17	Min Seat Height	910mm	35.8in
18	Handlebar Height	1080mm	42.5in
19	Weight (Without Battery)	32.6kg	71.9lb

1	Effective Top Tube Length	620mm	24.4in
2	Seat Tube Length (Classic Bike Size)	470mm	18.5in
3	Reach	540mm	21.3in
4	Stack	590mm	23.2in
5	Chainstay Length	470mm	18.5in
6	Standover Height	710mm	28in
7	Head Angle	67°	-
8	Seat Angle	71°	-
9	Head Tube Length	140 mm	5.5 in
10	Fork Length	570mm	22.4in
11	Front Center	815mm	32.1in
12	BB (Bottom Bracket) Drop	75mm	3in
13	Fork Offset	35mm	1.4in
14	Wheelbase	1300mm	51.2in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1050mm	41.3in
17	Min Seat Height	870mm	34.3in
18	Handlebar Height	1060mm	41.7in
19	Weight (Without Battery)	28kg	61.7lb

1	Effective Top Tube Length	620mm	24.4in
2	Seat Tube Length (Classic Bike Size)	470mm	18.5in
3	Reach	530mm	20.9in
4	Stack	540mm	21.3in
5	Chainstay Length	500mm	19.7in
6	Standover Height	720mm	28.3in
7	Head Angle	63°	-
8	Seat Angle	72°	-
9	Head Tube Length	150 mm	5.9 in
10	Fork Length	570mm	22.4in
11	Front Center	820mm	32.3in
12	BB (Bottom Bracket) Drop	85mm	3.3in
13	Fork Offset	30mm	1.2in
14	Wheelbase	1310mm	51.6in
15	Total Length	2020mm	79.5in
16	Max Seat Height	1080mm	42.5in
17	Min Seat Height	940mm	37in
18	Handlebar Height	1080mm	42.5in
19	Weight (Without Battery)	32.8kg	72.3lb

FAQ & Guides

Guide Spare Parts Finder
Manual eBike Display Manuals
FAQ eBike Battery Care Guide
FAQ Recommended Tire Pressure and Inflation Levels
FAQ I just assembled my eBike, what next?
FAQ I just received my eBike - what next?
Manual How to Adjust Your Rear Suspension

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How was the performance of the bike?:

Poor

Excellent

How comfortable was the bike?:

Uncomfortable

Very Comfortable

How was the bike build?:

Poor

Excellent

Enjoying the ride

Very fun bike to ride, it has a robust felling seems to float over almost anything, also the power is awesome.

How was the performance of the bike?:

Poor

Excellent

How comfortable was the bike?:

Uncomfortable

Very Comfortable

How was the bike build?:

Poor

Excellent

Amazing bike!

This bike is awesome! The whole thing seems to be made very well and with good quality parts. I bought this bike mainly for the power of the motor, because I am towing my special needs son in a trailer with a total weight of about 150lbs. This bike is amazing! I have gone on a few rides now and have gone up steep, long hills with no problem whatsoever! It's like riding on flat ground even on the biggest hills, and doesn't max out the power output. The battery seems to last a long time as well. After about a 30min ride on PAS 3 and going up about 8 decent sized hills while towing my son, the battery only dropped by 2%. The suspension feels like you're gliding on air, which I guess you sort of are seeing as the front and rear both use air-shocks...(You will need a special shock pump to adjust these...a standard bicycle pump can't achieve the high pressure needed)

I am 6' tall and bought a 19" frame which seems to be the right size. It's a bit confusing because the 19" frame says it's a Large frame on the website, but the frame says Medium when you actually get the bike. If you're unsure of what frame size to get I would suggest going with the bigger of whatever 2 options you are looking at, because the frames seem to fit a little bit small. (This is the opposite of what their website recommends, but I find that the seat has to be quite high for me and I can still put my feet comfortably on the ground)

There are only a couple of downsides that I can see so far but they are minor things. First, the motor is a little bit noisy, but that's to be expected from this amount of power output. The other thing is that there is no indicator on the shifter of which gear you're in, so you need to keep track of that yourself. Being a mid drive bike, make sure you are using your gears correctly and starting in an easy gear so that you don't put excessive strain on the motor.

I would highly recommend this bike!
Oh, and a shout out to Henry and Daniel...both of whom helped me out with the sale.

How was the performance of the bike?:

Poor

Excellent

How comfortable was the bike?:

Uncomfortable

Very Comfortable

How was the bike build?:

Poor

Excellent

The only complaint I have is the weight of the bike. It is too heavy for me to lift onto a bike rack by myself. Performance and range however is very good

How was the performance of the bike?:

Poor

Excellent

How comfortable was the bike?:

Uncomfortable

Very Comfortable

How was the bike build?:

Poor

Excellent

Juggernaut

I absolutely love this bike. It's my first electric one and I have zero regrets. I've been out on it practically ever day!

How was the performance of the bike?:

Poor

Excellent

How comfortable was the bike?:

Uncomfortable

Very Comfortable

How was the bike build?:

Poor

Excellent

Silver streak

As it is winter here in British Columbia I have only put on about 20 km! So far very impressed with the power and very smooth suspension. Looking forward to hitting the trails soon

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

Not my first rode

I have been enjoying the original Juggernaut Ultra FS since early 2018,
now with over 17,000 miles.
Took advantage of a great offer for the Juggernaut Ultra FS Pro 3 Mullet and received it this January ’25. With the additional range extending battery. I hope to ride longer and explore our back country here in California.

Thanks to the Biktrix team for making me happy for many more miles to come!

Cas

Fs pro 3 ultra. Thumb throttle didnt work called henry ext 122 left him a message. Was ordered with half twist throttle wasnt on the bike then biktrix sent me just the throttle without the half grip hopefully biktrix sends me a new thumb throttle and the proper grip for twist throttle when i want to change it over

Bike is fine, but return policy is horrible

Bike is heavy and clumsy. Very powerful, but steers like a tractor trailer and is heavy like my dirt bike. Trying to return the bike costs $550 return fee, PLUS a 15% to 50% restocking fee, which they decide when they receive the return. This policy was of course nowhere to be seen when ordering. Utter nonsense. I hate the company more than the bike.

Shipping e-bikes is unfortunately not cheap. You are welcome to ship the bike by yourself to us - we can then waive the $550 fee. You'll see that FedEx will charge you over double what we are quoting.

Btw, which dirt bike are you comparing with that weighs less than 100lbs?

Juggernaut Ultra Fs Pro 3 Fat

I’m very please with the choice I made and more then happy to recommand your compagny

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