Biktrix Juggernaut Ultra Beast 48V/30Ah Fat Tire Mid-Drive Electric Bicycle with 5 Levels of Pedal Assist (PAS) and Thumb Throttle
New stock - Latest model. Limited Supply.
Eliminate range anxiety and focus on your ride. Featuring our dual integrated battery technology, the Juggernaut Ultra Beast is the most powerful, longest range on torque sensing eBike on the market. The latest version of the Ultra motor with metal reduction gears, SRAM drivetrain, and 160Nm of torque make the Ultra Beast the best that money can buy.
Features of the Biktrix Juggernaut Ultra Beast Fat Tire Mid-Drive eBike
- Super powerful 1000W rated, 1500W (peak) motor
- Mid-drive motor - The mid-drive motor will let you roam cities, climb hills, and explore with ease
- Dual integrated battery system
- 5 Levels of Pedal Assist (PAS) to find just the right amount of help from the motor
- Up to 90 miles range (depending on rider's weight and riding conditions)
- 5 programmable Levels of Pedal Assist (PAS) to help you find just the right amount of help from the motor
- Hydraulic disc brakes, for maximum stopping power in all conditions
- Large, easy to read LCD display with a lot of information
- SRAM GX 11-speed (gears) transmission
- Cadence and torque sensor - Smooth and powerful Pedal Assist
- Integrated front light - Never ride blind again. Our bikes come with front lights integrated with the main battery of the bike
- Max load: 330 lbs.
- Includes front and rear fenders, and rear rack (value $100)
Bafang M620 Ultra mid-drive system
The Bafang M620 system features the G510 motor with over 1500 watts of peak power, 160Nm of torque and torque sensing assist. The mid-motor makes the Juggernaut Ultra Beast very versatile. Mid-drive motors are much more efficient than hub drives as they can use the bike's gears as a transmission. Climb the steepest hills. Conquer anything.

Dual integrated battery system
Range worries are a thing of the past with our dual battery system. One battery is embedded in the frame, while the other is mounted within the triangle of the frame. This positioning maintains stability, with no noticeable effect on your ride.
11-speed SRAM GX transmission
From climbing steep hills to holding maximum speed on the flats and everything in between, our SRAM 11-speed has you covered.
Biktrix inverted front suspension
Our suspension fork features 150mm of travel, compression adjustment, and lockout. Customize your ride with a Rockshox Bluto or Wren inverted suspension fork also.
Quad-piston hydraulic disc brakes
You need strong stopping power when it's so easy to go fast on an electric bike. These high-end hydraulic disc brakes will swiftly and reliably bring you to a halt.
Throttle & control pad
With a push of the thumb, this becomes a motorbike. Just sit back and enjoy the ride. The control pad allows you to turn the bike on/off and adjust settings.
LCD display
The LCD Display shows you information about your rides such as speed, battery life, range, odometer, and pedal assist level.

Integrated headlight
This bright LED is powered by the bike's battery and can be turned on/off with a button on the handlebar control pad.
Rack & fenders
These fenders will keep you and your bike clean when the path gets wet. Need to carry some gear? Strap on our rear rack and make your way.



Personalize your Biktrix eBike and build a bike that is just perfect for you. Customize your wheelset, brake options, battery, and forks to increase your bike’s functionality and boost your experience.
Three ways to ride the Biktrix Juggernaut Ultra Beast Fat Tire Mid-Drive eBike
- Pedal only (with no help from the motor)
- Pedal Assist (with 5 levels of assist to choose from)
- Throttle only (effortless like a motorcycle)
The Biktrix Juggernaut Ultra Beast can be used as a normal bike where the rider provides all the power, or you can use just the throttle and let the bike do all of the work. There is also an in-between option, Pedal Assist, where the rider pedals and the motor provides a great boost at the same time. You can choose the level that is right for your type of riding. The Levels of Pedal Assist allow for increased ride efficiency, resulting in less strain on your knees while riding. It makes riding fun and effortless.
Specifications of the Biktrix Juggernaut Ultra Beast Fat Tire Mid-Drive eBike
COMPONENT | SPECIFICATION | |
FRAME | 6061 ALUMINUM | |
FORK | BIKTRIX INVERTED AIR FORK, 100MM TRAVEL | |
HEADSET | THREADLESS 1-1/8 1-1/2 TAPERED | |
SHIFTER REAR | SRAM NX 11 SPEED | |
REAR DERAILLEUR | SRAM NX 11 SPEED | |
CASSETTE | SRAM 11-42T | |
CHAIN | KMC E11S | |
CRANKSET | 170MM ARMS WITH 44T STEEL CHAINRING | |
BOTTOM BRACKET | BAFANG ULTRA ISIS | |
FRONT HUB | QUANTA 150MM 36H | |
FRONT AXLE/SKEWER | 15MM THRU | |
REAR HUB | QUANTA 197MM 36H | |
REAR AXLE/SKEWER | 12MM THRU | |
RIMS | 26" - 36H | |
TIRES | 26X4.8 | |
BRAKES | TEKTRO E-725 QUAD PISTON HYDRAULIC W/203 MM ROTORS | |
BRAKE LEVERS | TEKTRO HYDRAULIC W/ MOTOR CUTOFF | |
HANDLEBAR | ALUMINUM 31.8 CLAMP, 760MM WIDE, 10MM RISE 7° SWEEP | |
STEM | 90MM ALUMINUM | |
GRIPS | SCREW LOCK | |
SEAT POST | ALUMINUM 30.4MM | |
SEAT POST CLAMP | QUICK RELEASE | |
SADDLE | VELO PLUSH | |
MOTOR | 1000W BAFANG ULTRA MID-DRIVE MOTOR | |
DISPLAY | DPC-18 COLOR DISPLAY | |
LIGHTS | INTEGRATED HEADLIGHT, BATTERY TAILLIGHT | |
THROTTLE | THUMB THROTTLE | |
ASSIST LEVELS | 0-5 | |
ASSIST TYPE | TORQUE AND CADENCE ASSIST | |
OTHER | REAR RACK, FRONT RACK, ADJUSTABLE KICKSTAND |

View in landscape on mobile.
BIKE GEOMETRY | MM |
INCHES
|
|
1 | EFFECTIVE TOP TUBE LENGTH | 610 | 24 |
2 | SEAT TUBE LENGTH (CLASSIC BIKE SIZE) | 480 | 18.9 |
3 | REACH | 480 | 18.9 |
4 | STACK | 680 | 26.8 |
5 | CHAINSTAY LENGTH | 560 | 22 |
6 | STANDOVER HEIGHT | 730 | 28.7 |
7 | HEAD ANGLE | 65 |
DEGREE
|
8 | SEAT ANGLE | 68 |
DEGREE
|
9 | HEAD TUBE LENGTH | 165 | 6.5 |
10 | FORK LENGTH | 590 | 3.2 |
11 | FRONT CENTER | 680 | 26.8 |
12 | BB (BOTTOM BRACKET) DROP | 45 | 1.8 |
13 | FORK OFFSET | 35 | 1.4 |
14 | WHEELBASE | 1,280 | 50.4 |
15 | TOTAL LENGTH | 2000 | 78.7 |
16 | MAX SEAT HEIGHT | 1,110 | 43.7 |
17 | MIN SEAT HEIGHT | 890 | 35 |
18 | HANDLEBAR HEIGHT | 1,130 | 44.3 |
19 | WEIGHT | 34.9 KG | 76.9 LB |
Download Old Juggernaut User Manual HERE (very useful for all Biktrix eBikes)
Videos of the Biktrix Juggernaut Ultra Beast Fat Tire Mid-Drive eBike
