Eahora Romeo Ultra II Review: A 5,000W Dual-Motor Electric Beast

The Eahora Romeo Ultra II is an enormous, motorcycle-inspired electric bike featuring dual 2,500W motors, a massive 60V battery, front and rear suspension, and a distinctive fat-tire design. Weighing around 78 kg with the battery installed, it prioritizes raw power, high-speed stability, and an unmistakable road presence over the lightweight practicality of a conventional e-bike.

Assembly and First Impressions

The Eahora Romeo Ultra II makes a statement before you even start riding it. Its huge frame, oversized battery, and aggressive stance give it the appearance of a hybrid between an electric bicycle, a pit bike, and a mini motorcycle.

Assembly itself was manageable, but moving the bike around was another story. With the battery installed, it weighs approximately 78 kg, making it exceptionally heavy for an e-bike. Simply walking it out of the box or maneuvering it by hand requires considerable effort.

That weight is a major disadvantage when handling the bike off the saddle. However, once you're riding, it contributes to a planted and stable feeling that becomes one of the Romeo Ultra II's most notable characteristics.

Dual-Motor Performance and Riding Stability

The Romeo Ultra II is equipped with two 2,500W motors, one in the front hub and one in the rear hub. According to the specifications referenced in my test, the combined nominal power is 5,000W, with approximately 120 Nm of torque per motor.

These figures put the bike in a very different category from an ordinary city e-bike. The acceleration and power delivery are substantial, and the bike feels much closer to an electric motorcycle than a conventional bicycle.

Despite its size and power, the Romeo Ultra II felt remarkably stable during my ride. Even at higher speeds, the steering remained composed, with none of the noticeable wobbling I have experienced on some other fat-tire bikes.

This stability is one of the bike's biggest strengths. Nevertheless, a stable feeling should not be mistaken for a guarantee of safety, particularly at the very high speeds this machine can reach.

Throttle Response and Top Speed

The throttle initially feels less aggressive than the bike's enormous power figures might suggest. After a short delay, however, the motors build momentum and deliver a much stronger push.

During my test, I reached approximately 70 km/h. At that speed, the Romeo Ultra II feels far removed from a typical pedal-assisted bicycle. The experience is intense, and maintaining control and paying attention to road conditions become especially important.

I found speeds around 60 km/h more comfortable during my ride, although these are still very high speeds for a vehicle with bicycle-style pedals. Actual safe and legal operating speeds depend on the riding environment, the bike's configuration, and local regulations.

The throttle tuning is not perfect. At lower speeds, the response can feel sluggish or delayed, followed by a sudden increase in power around 15–20 km/h. This makes acceleration feel less progressive than I would prefer.

The brake sensors also interrupt motor power very easily. Even light contact with the brake levers can trigger the sensors, cutting the throttle unexpectedly. I found this frustrating during testing, particularly when trying to maintain a consistent riding rhythm.

Pedal Assist and Motor Selection

Although the Romeo Ultra II has pedals and Shimano gearing, its pedal-assist system has a noticeable weakness: the sensor reacts slowly when starting from a standstill.

During my test, there was an almost five-second delay before the motors responded to pedalling. Combined with the bike's considerable weight, this makes pulling away using the pedals alone awkward.

The bike seems much more suited to throttle-led riding than to the natural start-and-stop experience expected from a conventional pedal-assist e-bike.

I also encountered an issue when selecting rear-motor-only mode. On my test bike, this mode barely seemed to work, while dual-motor mode functioned properly. This was my experience with the particular bike I tested, rather than confirmation that every Romeo Ultra II has the same issue.

The motor-selection controls are integrated with the lighting controls, which is an unusual design decision. It takes a little getting used to, especially when switching between functions.

Motorcycle-Inspired Design and Lighting

Visually, the Eahora Romeo Ultra II is one of the most distinctive bikes I have tested. Its massive matte-finish frame, oversized battery, aggressive proportions, and unusual tires create a look that blends electric bicycle styling with mini-motorcycle design.

The available colors are attractive, and the front headlight is particularly well integrated into the overall appearance. It is large, bright, and appropriately sized for the bike's substantial front end.

The rear light follows the same design language, helping the bike maintain a cohesive appearance.

The display is another highlight. It looks modern and premium, with a clean layout that suits the bike's high-tech character. The startup sequence also adds to the overall presentation.

The main drawback is the control layout: the button used to select the motor configuration also serves as the light button. While this arrangement is functional once you become familiar with it, separating these controls would make the interface more intuitive.

Heavy-Duty Front Fork and Rear Suspension

The Romeo Ultra II's suspension setup is built to match its size and weight.

At the front, the bike uses a substantial fork that looks more like a pit-bike suspension unit than a conventional bicycle fork. It has a heavy-duty construction designed to handle the demands of this large machine.

The rear suspension is similarly substantial. However, I found the rear shock setup somewhat too firm and slightly bouncy during my test.

Given the bike's weight and the speeds it can reach, the firm tuning is understandable. Still, the rear suspension could feel more settled, particularly for riders who prioritize comfort over an aggressive riding character.

Overall, the suspension hardware fits the Romeo Ultra II's heavyweight design, although the rear setup was not quite to my personal preference.

Braking Performance and Brake Sensors

The braking hardware is another striking feature. The brake rotors are enormous, almost resembling the discs found on a small motorcycle or car. The calipers carry the Earhorror branding, although I could not confirm who manufactures them.

My test bike arrived with the brakes poorly adjusted from the factory. After proper adjustment, however, they performed well.

The sensitive brake sensors remain a separate concern. Lightly touching a brake lever can immediately cut power to the motors, which can be inconvenient when riding and managing the throttle.

For a bike with this much power and weight, correctly adjusted brakes and predictable motor cut-off behavior are particularly important. I would recommend checking the braking system carefully before riding.

Saddle, Shimano Gears, and Tires

The saddle is relatively firm, but I found it surprisingly comfortable, even during longer rides. Its appearance and proportions fit the Romeo Ultra II's motorcycle-inspired design.

The bike also comes with seven Shimano gears. In practice, however, I rarely found myself changing gears because the powerful motors did most of the work during my test. The gearing is present, but it plays a much smaller role in the riding experience than it would on a conventional bicycle.

The tires are equally unusual. These 26-inch motorcycle-style tires look different from the tires commonly found on other e-bikes and contribute significantly to the bike's distinctive appearance.

Together with the massive frame and suspension components, they reinforce the impression that the Romeo Ultra II was designed around power and presence rather than traditional bicycle proportions.

Massive 60V Battery and Claimed Range

One of the Romeo Ultra II's most remarkable components is its enormous battery. The test description identifies it as a 60V, 4,800Wh battery, making it one of the largest e-bike batteries I have encountered.

Eahora claims a range of up to 300 km. I would be cautious about interpreting that figure as a realistic distance at high speeds, especially when using both motors aggressively. Riding speed, motor usage, rider weight, terrain, and other conditions can all have a major effect on range.

Although I did not establish a verified real-world range of 300 km during this test, the battery is undeniably substantial. Its size is consistent with the bike's high-power design and is a major part of what makes the Romeo Ultra II so heavy.

The battery also contributes to the bike's distinctive appearance, although its size is one reason this machine is not particularly convenient to move or store.

Build Details and Kickstand

The Romeo Ultra II includes several components that reflect its heavyweight construction. The kickstand is a good example: it is made of substantial steel and deploys with a strong spring.

On a bike weighing around 78 kg with the battery installed, a lightweight bicycle kickstand would be a questionable choice. The sturdy stand feels more appropriate for supporting such a large machine when parked.

Small details like this reinforce the impression that the Romeo Ultra II has been built around its unusual size and weight rather than simply being a conventional fat bike with more powerful motors.

Final Verdict: Is the Eahora Romeo Ultra II Worth Considering?

The Eahora Romeo Ultra II is not a typical electric bicycle. With dual 2,500W motors, a huge 60V battery, heavy-duty suspension, oversized tires, and a motorcycle-inspired frame, it is designed for riders who want an exceptionally powerful and visually striking machine.

Its strongest points are the impressive dual-motor performance, planted handling during my test, comfortable saddle, substantial suspension hardware, and distinctive design. The enormous battery also gives it considerable potential for long-distance riding, although the manufacturer's claimed maximum range should not be confused with verified real-world range at high speeds.

There are significant compromises. At approximately 78 kg, it is extremely heavy to maneuver. The throttle response can be inconsistent, the pedal-assist system has a frustrating startup delay, the rear-motor-only mode did not work properly on my test bike, and the brake sensors were overly sensitive. The rear suspension also felt somewhat too firm and bouncy to me.

My verdict: The Romeo Ultra II is an impressive, motorcycle-style electric machine built around power, presence, and high-speed performance. It is not the sort of e-bike I would choose for a casual trip to the shops or easy everyday handling. Before buying, I would also verify its road-legal classification, permitted operating speed, and applicable licensing and equipment requirements in your country. Its appeal lies in its unusual design and powerful riding experience, but those characteristics come with real practical and safety considerations.