Biktrix

Juggernaut Ultra FS Pro 3 Fat

Price $4,499
Motor (Nominal) 1,000 W
Range 45 mi
Inventory Check Inventory
Juggernaut Ultra FS Pro 3 Fat
Performance Review
8.4/10 ebikes.com score
Highly Recommended
Excellent performance with minor tradeoffs.
Editorial Score
Data-driven rating breakdown
8
/100
Power
9/10
Range
8/10
Comfort
9/10
Build Quality
9/10
Value
7/10
Starting at
--
Price
Nominal power
1,000 W
Motor (Nominal)
Capacity
884 Wh
Battery
Estimated range
45 mi
Range
Max speed
20 mph
Top Speed
Max load
265 lbs
Payload Capacity
Folds
No
Foldable

Editorial Insights

Reasons to Buy

  • + Exceptional power and torque from the Bafang Ultra M620 mid-drive motor, making steep climbs effortless.
  • + Superior all-terrain capability and comfort thanks to full suspension and large fat tires, with extensive customization options.

Reasons to Avoid

  • - Premium price tag, which can increase significantly with desirable upgrades like forks, brakes, or larger tires.
  • - The 26x4.9 fat wheel option incurs a substantial price increase without a clear justification in the provided text beyond improving traction.
Expert Verdict

In-Depth Analysis

Biktrix Juggernaut Ultra FS Pro 3 Fat: The All-Terrain Conqueror

The Biktrix Juggernaut Ultra FS Pro 3 Fat is an e-bike explicitly engineered for adventure seekers who demand uncompromising power, versatility, and comfort across any terrain. Positioned as a top-of-the-line full-suspension fat tire eBike, it promises an exhilarating and effortless riding experience whether you're tackling rugged trails, sandy beaches, snowy paths, or navigating urban landscapes. With a robust build and a host of high-performance features, this model is designed to withstand the rigors of aggressive riding while providing a smooth and controlled journey, making it a compelling option for those looking to push the boundaries of their e-biking adventures.

Unleashing Power and Performance

At the heart of the Juggernaut Ultra FS Pro 3 Fat lies the formidable 1000W Bafang Ultra M620 mid-drive motor, delivering an impressive 160Nm of torque. This powerhouse ensures unparalleled acceleration and hill-climbing prowess, allowing riders to conquer steep inclines with remarkable ease. Complementing this is a sophisticated cadence and torque sensor system, providing a smooth and responsive pedal assist that adapts to your riding style, alongside an on-demand throttle for instant bursts of power. The bike is equipped with a substantial 52V 17Ah (884Wh) battery, offering an estimated range of 45 miles, with the invaluable option to install a second battery for extended, worry-free adventures. While street-legal at 20mph/500W, the motor can be unlocked for off-road use to unleash its full 1000W potential.

Comfort, Customization, and Capability

Comfort is paramount with the Juggernaut Ultra FS Pro 3 Fat, featuring a full-suspension system coupled with wide fat tires (available in 26x4 or 26x4.9 options) designed to absorb shocks and provide maximum traction on diverse surfaces. Biktrix offers an extensive array of upgrades, allowing riders to tailor the bike to their exact needs. These include premium inverted air forks from Wren or Rockshox Bluto, Magura MT5e quad-piston hydraulic brakes for superior stopping power, and robust ratcheting rear hubs for enhanced durability and engagement. A dropper seatpost is also an available upgrade, adding to rider convenience. This commitment to customization, combined with a 265lb load capacity and a 25+ point quality control checklist, underscores the Juggernaut Ultra FS Pro 3 Fat's exceptional performance, versatility, and build quality, solidifying its position as a serious contender for adventurous riders.

Specs

Key specifications for Juggernaut Ultra FS Pro 3 Fat, organized for quick scanning.

Pricing
Price --
Motor
Motor (Nominal) 1,000 W
Motor (Peak) 1,000 W
Battery
Battery 884 Wh
Battery (Ah) 17.0 Ah
Performance
Range 45 mi
Top Speed 20 mph
Utility
Weight --
Payload Capacity 265 lbs
Foldable No

Real-World Range Estimator

42.1 mi
Based on 884 Wh battery capacity
Motor Type
Terrain
How is this calculated?

How We Score eBikes

At eBikes.com, we believe in complete transparency. Our Editorial Scores are not influenced by sponsorships or brand partnerships. They are calculated using a strict, data-driven logic gate based on manufacturer specifications:

⚡ Power Graded strictly by Motor Wattage. A baseline 250W earns an average score, with higher continuous outputs scaling linearly to the maximum score.
🗺️ Range Graded by Battery Capacity (Watt-hours). A standard 300Wh battery serves as the baseline, rewarding bikes that offer extended range capacities.
🛋️ Comfort Calculated by suspension type (Full, Front, or Rigid) and frame geometry (Step-Thru vs. Step-Over) to determine overall ride smoothness.
🛠️ Build Quality Assessed via component tiers. Bikes receive premium marks for Hydraulic Brakes, UL 2849 safety certifications, and premium price-tier construction.
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