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Juggernaut Ultra FS Pro 3

Sale price$3,999.00 Regular price$4,299.00
Brushed Aluminum
Estimated to be shipped in 6-7 business days

Full Suspension. Full Performance.

Top-of-the-line components and the most powerful torque-sensing mid-drive motor in the industry makes the Juggernaut Ultra FS Pro 3 the best-built full-suspension electric bike on the market. Now available with an optional range extender battery to add on additional range! New to this version is a rear triangle wide enough to support 4.8" tires!

Maximum Traction

With a quality FS system, both wheels stay connected with the ground. That means better handling and higher speeds on tough terrain. This bike is built for the trail.

Product Features

Bafang Ultra M620 Mid-Drive System

The Bafang M620 system features the G510 electric motor with over 1500 watts of peak power, 160Nm of torque and torque-sensing assist. Span cities, climb hills, and explore all the places you want to go with ease.

Rockshox Rear Suspension

The rear suspension sets the Ultra FS Pro apart from the rest of our lineup, making it the ultimate eBike. Take on any trail with maximum comfort and control

Optional Range Extender

On top of the stock 52V 17Ah battery add on a range extender battery to gain additional range

Front Suspension

The Biktrix Inverted Suspension Fork features 140mm of travel, adjustable preload and adjustable lockout


The SRAM NX 11-speed drivetrain has the versatility to provide max torque while climbing hills and max speed on the flats.

Hydraulic Disc Brakes

When it's so easy to go fast on an electric bike, you need strong stopping power. These hydraulic disc brakes will swiftly and reliably bring you to a halt.

LCD Display

The LCD Display shows you all kinds of important information about your ride including speed, battery life, range, odometer, pedal assist level, and more.

Thumb Throttle & Control Pad

With just a push of the thumb you can access the motor's full power! The control pad allows you to turn the bike on/off and adjust your settings.

Integrated Front Light

This bright LED light is powered by the bike's battery and can be turned on/off with a button on the handlebar control pad.

Technical Specifications

Size & Fittings

17" M Frame 19" L Frame 21" XL Frame

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Customer Reviews

Based on 229 reviews
Mike McRitchie
New Juggernaut Ultra FS Pro 3

This is my 2nd Biktrix bike. My first was the Juggernaut Classic Duo. It was fantastic as well but I had decided I wanted full suspension as I mainly ride off road. We are lucky enough to have miles of off road trails to ride here. I typically try to ride 20 to 30 kms a day if I can. The new new Juggernaut Ultra FS Pro 3 has been nothing short of amazing. I have done a number of things to customize it specifically for me but it is awesome!

Mike Roberts
Transformative. My face hurts.

My face hurts. From smiling too much.
What a blast it was to ride 16 miles and only using 15% battery suggesting I could get well over 50 miles with the 17AH battery - time will tell. When a hill approached, I kicked it up from Eco PAS 2 to 4 and breezed up the hill. A very steep dirt patch popped up and Sport mode PAS 3 made that lift easy. I did have some electrical issues, but they were resolved over the phone (a loose connector). So far, so good. This beast is strong. High quality. Glad I went with 3" tires - they breach any terrain and are just right for my needs. Now my two ebike buddies want to upgrade their hub bikes (Sondors and RAD) to Biktrix. Very happy with this bike.

Almost Perfect

I purchased this bike to primarily use for scouting/hunting. I will also use it a bit recreationally. My particular bike was upgraded with the Wren hub and the Magura brakes,I’ve only put 20 miles on it so far and couldn’t be happier with my purchase. My only recommendation would be to see a stock forest green color option for us hunters, other than that the bike has been terrific so far.

Jeff Schreckler
“I Found The Fountain Of Youth “ J.Schreck Mad History Adventures

We do Extreme Adventures in the Southwest United States and I have been looking at various machines for exploration . After deciding on an e-bike the next task was picking a manufactuer . Communication and rugged quality was a major concern in the process. My choice ended when I called Biktrix . The staff guided me thru the process and it was painless . I look forward taking you along with me as we go explore the great desert wilderness Let Ride ! J.Schreck

Steven Conklin
Excellent Purchase Experience

From website, videos to customer service & purchase was awesome. Comparing the Biktrix Juggernaut FS Pro to other brands was easy to rule out Brands with worse websites & worse customer service. I purchased the bike on a Saturday online and was shipped on the following Tuesday & would have been delivered in 3 days from Saskatoon to NJ, but was delayed because of rain and flooding conditions in Memphis FedEx Freight delivered in 4 business days the Monday after. Finally got to put bike together 2 days later and happily riding the bike ever since. Have a single track ride planned today and expect to have a fun ride. Thanks Biktrix

Jim Roal
Awesome off-road machine

This is my second electric mountain bike. The first was a Rurui XT10 with hub drive and it was not well suited for off-road riding. This bike is! I like more serious off-road riding. I just completed my first 30 miles, mostly off-road. It included long, steep, loamy hills. My last ride was a 22 mile loop that has over 2,900 feet of ascent. Lower rider fatigue than other bikes as well. This off-road riding tends to eat batteries but I went about 30 miles on this charge and had 52% remaining without a range extender battery. Here is a YouTube video of parts of that 22 mile loop: https://youtu.be/NcHmBKLUrgU .

Kevin Pigeon
Juggernaut Ultra Pro 3

I am so happy with the purchase of my Ultra FS Pro 3 . I still can’t believe how much floatation is created by the 4” tires on semi packed snow. The battery performance is amazing as well. I had been considering a Biktrix purchase for a long time. I am so happy I pulled the trigger , now I can’t wait for summer riding. Thanks Biktrix. 56 yr old KP from central B.C Canada

Michael Dascanio
Great bike!!

The bikers excellent to ride handles very well, but very heavy. It is very powerful and get you where you need to go or use her every day to go to work and back home.

Carlos Almeida

Juggernaut Ultra FS Pro 3

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