Juggernaut Ultra FS Pro 3 vs Ontime Phantom

Juggernaut Ultra FS Pro 3 vs Ontime Phantom

Electric bikes have taken the cycling world by storm, and for a good reason. These bikes are eco-friendly, affordable, and efficient, offering a fantastic riding experience. With so many different electric bike models to choose from, finding the right one can be a daunting task. In this blog post, we'll compare two electric bikes - the Biktrix Juggernaut Ultra FS Pro 3 and the Ontime Phantom.

Comparison Table:


Biktrix Juggernaut Ultra FS Pro 3

Ontime Phantom


Bafang Ultra 1000W mid-drive motor

Bafang 750W Mid-Drive Motor


52V 17.5Ah 910Wh (up to 1794Wh with dual batteries)

48V 14Ah (672Wh)

Drive Mode

Cadence and torque-sensor

Cadence and torque-sensor

Total Weight (with battery)

84 lbs

86 lbs

Frame Sizes

17", 19", and 20"


Wheel Sizes

26x4", 26x4.8", and 27.5"x3"


Payload Capacity

265 lbs

275 lbs

Please note that the specifications may vary depending on the specific model and configuration of each electric bike. Specs are accurate as of the publication date.

The Biktrix Juggernaut Ultra FS Pro 3 boasts a powerful Bafang Ultra 1000W mid-drive motor that provides an exceptional riding experience. With this motor, riders can tackle even the toughest terrain with ease. On the other hand, the Ontime Phantom is equipped with a Bafang 750W mid-drive motor, which is less powerful but still capable of delivering a smooth ride. Both eBikes are equipped with combination torque and cadence sensors, to deliver a natural and intuitive riding experience.

The Biktrix Juggernaut Ultra FS Pro 3 is slightly lighter, weighing 84 lbs, whereas the Ontime Phantom weighs 86 lbs. Though both are similar weights, a lighter bike translates into a more comfortable and responsive riding experience.

When it comes to battery life, the Biktrix Juggernaut Ultra FS Pro 3 is the clear winner, with a 52V 17.5Ah (910Wh) battery that provides great range on its own, and phenomenal distance when equipped with dual batteries. Meanwhile, the Ontime Phantom features a significantly smaller 48V 14Ah (672Wh) battery. Experienced eBikers know best: opt for the largest battery whenever possible.

The Biktrix Juggernaut Ultra FS Pro 3 comes in three frame sizes (17", 19", and 20”) and three options of tire sizes (26x4", 26x4.8", and 27.5"x3"), providing great customization and more options for riders to find the perfect fit. Meanwhile, the Ontime Phantom is a one-size-fits-all bike, which might not be suitable for all body shapes/sizes. The Ontime Phantom is only available with a  27.5x2.8" wheelset, which may be limiting if your route includes challenging terrain.

How about hauling? If you plan to carry cargo or gear, you need to pay close attention to the weight capacity (or payload) of your eBike. Both the Biktrix Juggernaut Ultra FS Pro 3 and the Ontime Phantom have similar payload ratings,, with the Biktrix model having a capacity of 265 lbs, and the Phantom having a capacity of 275 lbs.

Pros and Cons of the Juggernaut Ultra FS Pro 3:


  • More powerful motor
  • Larger battery capacity = more range between charges
  • Torque sensor for better responsiveness
  • Lighter bike
  • More frame size and wheel size options


  • Slightly lower payload rating

Pros and Cons of the Ontime Phantom:


  • Good payload capacity
  • Good for city riding


  • Less powerful motor
  • Shorter battery life
  • One-size-fits-all frame


After carefully considering the pros and cons of both electric bike models, our final recommendation is to go for the Biktrix Juggernaut Ultra FS Pro 3. This eBike offers superior performance with a more powerful motor and longer battery life. Additionally, our eBike is lighter and has more frame size and wheel size options, making it a versatile choice for a multitude of riding terrains. The advanced features and exceptional riding experience of the Ultra FS Pro make it a worthwhile investment for avid cyclists who are looking for a high-quality full-suspension electric bike.

The dual batteries of the Juggernaut Ultra FS Pro allows for much longer rides between charges; revealing new destinations that may not be possible on a standard single battery configuration.

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