Juggernaut Ultra Duo 2 vs Rize RX Pro

Juggernaut Ultra Duo 2 vs Rize RX Pro

Even though electric bicycles are a relatively new technology, there are no shortage of different styles, designs, and applications. With so many options on the market, it can be difficult and overwhelming to make the right decision! In this article, we compare two eBikes: the Biktrix Juggernaut Ultra Duo 2 and the Rize RX Pro. They may be similar at first glance, but comparing these two eBikes reveal some key differences. Let’s dig in to see which of these two powerful eBikes has the advantage!

Comparison Table:

Make / Model

Juggernaut Ultra Duo 2

Rize RX Pro


Bafang M620 1000W mid-drive motor

Bafang M620 1000W mid-drive motor


52V 17.5Ah 910Wh (up to 1908Wh with dual batteries)

52V 15Ah 780Wh (up to 1560Wh with dual batteries)

Drive Mode

Cadence and torque-sensing pedal assist

Cadence and torque-sensing pedal assist

Total Weight

75 lbs

73 lbs

Frame Sizes

17", 19", & 21"


Wheel Sizes

26x4" & 27.5x3"

26x4" or 27.5x2.3"

Payload Capacity

380 lbs

300 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 Bafang M620 motor is considered a standard for high-performance electric bikes. With the power and torque of this 1000W mid-drive motor, riders can plan to take on more challenging terrain and steeper elevations. The Bafang M620 is programmed to deliver smooth and intuitive pedal assist with the help of its combination torque and cadence sensors. Since the Juggernaut Ultra Duo and the Rize RX utilizes the same motor, let’s dive deeper to find out how these two eBikes are different. 

After the motor, the most critical component of an electric bike is the battery! Typically, the larger the battery, the longer you’ll be able to ride before needing to recharge. The 910Wh of the Juggernaut’s standard battery easily outperforms the smaller-capacity 780Wh battery found on the Rize RX Pro. A great feature of both these eBikes is the ability to equip a range extender in addition to the standard battery. With a dual battery configuration, the Juggernaut Ultra Duo’s combined batteries provide up to 1908Wh of power, compared to the Rize RX Pro’s maximum of 1560Wh. For riders who value more time on the trails, the Juggernaut is the clear choice.

The Juggernaut's frame size options and payload capacity are also superior to those of the Rize. With three frame sizes to choose from (17", 19", and 21") and a payload capacity of up to 380 pounds, the Juggernaut is more accommodating to riders of all sizes and weights. In contrast, the Rize's "one-size-fits-all" frame and payload capacity of up to 300 pounds may be limiting for larger riders who also want to carry gear. The 380-pound payload capacity of the Juggernaut means that it can carry heavier loads and more cargo, making it the better choice for those who plan to use their eBike for heavy-duty activities.

Biktrix Juggernaut Ultra Duo 2 Pros and Cons


  • Larger battery capacity
  • Variety of frame and wheel sizes
  • High payload capacity


  • Heavy, weighing in at 75 lbs

Rize RX Pro Pros and Cons


  • Compareitvely lighter than the Ultra Duo, weighing in at 73 lbs


  • Limited frame size options, with a one-size-fits-all design
  • Lower payload capacity
  • Smaller battery capacity

Final Recommendation:

After reviewing the features and specifications of both eBikes, we recommend the Biktrix Juggernaut Ultra Duo 2 for its powerful motor and battery, wider range of frame and wheel sizes, and higher payload capacity. While the Rize RX Pro offers some unique features, the Biktrix Juggernaut meets or exceeds these and offers more value to a wider variety of riders.

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