Eahora Romeo Ultra II

Eahora’s Romeo Ultra II motorcycle-style e-bike is the most powerful model we’ve tested at BikeRide.

Eahora says the bike’s dual 2,500W motors and massive 60V, 80Ah battery can power it to 50mph and over 100 miles of range.

We were excited to put this bike to the test, so keep reading to find out if the Romeo Ultra II lives up to Eahora’s bold claims.

About Eahora and the Romeo Ultra II

Chinese e-bike brand Eahora has been selling bikes since 2018. They sell e-bikes direct to consumers through their website and on Amazon. Eahora offers a range of beefy e-bikes with fat tires, big batteries, and high-power motors.

The lineup includes multiple variants of its Romeo and Juliet motorcycle-style e-bikes, Luna and Terra commuters, an e-cargo bike called Cupid, and other moto-inspired e-bikes that Eahora calls “cruisers”.

At first glance, one could easily mistake our test bike, the Romeo Ultra II, for a motorbike. It’s certainly a lot of e-bike.

This monster packs 5,000W of power. Each of the wheels contains a 2,500W hub motor, giving the Romeo Ultra II significantly more power than anything we’ve tested. The 60V electrical system includes a 41A controller and 80Ah (4,800Wh) battery.

According to Eahora, the Romeo Ultra II can hit 50mph and last up to 235 miles. If true, those figures are incredible, but such power does have its downsides.

We weighed this huge bike at a staggering 177.8lb, 3.6lb heavier than the claimed weight of 174.17lb. The high motor power and top speed also mean it’s not actually an electric bicycle under the law, so a license, insurance, and possibly registration are required to use it on the road.

Despite the Romeo Ultra II’s price, it has some disappointing components, such as an entry-level Shimano Tourney derailleur. On the other hand, most buyers probably don’t expect to pedal a bike like this.

Maintaining the moto style, the Ultra II rolls on beefy 4” tires and full suspension. Now, let’s take a look at the headline pros and cons.

Pros

Speed

Riders who want the thrill of a high-speed e-bike will almost certainly find what they want in the Romeo Ultra II. With both motors powering the bike, it’s incredibly fast. It zips past 20mph in under four seconds and comfortably cruises at over 40mph. The Ultra II feels like an electric motorbike with pedals attached. I found myself zooming around town on throttle power alone, easily keeping up with traffic.

Battery Capacity and Range

Even though the Romeo Ultra II has a massive 4,800Wh battery, the 60V electrical system and two 2,500W motors require a lot of juice, so I was skeptical about Eahora’s stated battery range. However, I was pleasantly surprised, as this bike managed over 70 miles with pedal assist on its highest setting. On slightly lower pedal assist levels, the claimed 100-mile range is achievable.

Hill Climbing

This bike can climb hills at over 40mph. It is shockingly fast. We’ve never tested an e-bike that accelerates so quickly up steep slopes using only the throttle. It’s truly exhilarating.

The Romeo Ultra II also makes short work of steeper off-road climbs. It’s never short of power, and it easily drives its 177lb forward. In fact, I actually had to be careful not to apply the throttle too sharply, or the bike would surge forward, spinning the tires and leaving me hanging on for dear life.

Cons

Suspension and Off-Road Ride Quality

Eahora markets this as an off-road bike, but the suspension is harsh and unforgiving over bumps and washboarding. This and the high weight limit its capacity for anything rougher than light gravel roads and double track.

The rear suspension is especially disappointing, with impacts to the rear tire transmitted throughout the bike, which makes hitting a pothole very uncomfortable. The shock has adjustable rebound, but the suspension is harsh and jarring no matter the setting. To make matters worse, after a short ride over gravel roads with moderate washboarding and potholes, the bike started creaking and clunking. This made me worry about riding at higher speeds. The clunking sound seemed to be coming from inside the fork, around the stanchions, and the creaks continued even after re-tightening everything that I could.

Weight and Size

This is a large and heavy bike. The battery weighs more than some complete e-bikes at 40.5lb. And, with its hub motor, the front wheel is 30lb, so very few people will be capable of lifting this bike, and forget about taking it upstairs. A truck with a ramp or rack designed for dirt bikes is required just to transport it.

The immense mass and bulk make low-speed maneuvering a challenge, and turns have to be taken in wide, sweeping arcs. Riders familiar with motorbikes will feel more at home on this bike.

The Romeo is also hard to push and a real handful when leaned over, so most maintenance is going to be a major pain. Those who are set up for motorcycle maintenance will be able to handle it, but anyone coming from a cycling background will struggle.

Legality

As mentioned, the Romeo Ultra II has more in common with motorcycles than e-bikes, and that’s how the law sees it, too. With so much power and speed, the Eahora isn’t classed as a bicycle. A license, registration, insurance, and motorcycle helmet are likely required for riding this e-bike on public roads. Additionally, mirrors and turn signals could be required, both of which the Romeo lacks.

UL Compliance

UL 2849 and UL 2271 safety certifications are, in our opinion, basic requirements for e-bikes. This bike has neither. Not only does that mean the Eahora can’t be sold in some parts of the US, but it raises serious concerns about fire risk and overall safety, making me uneasy about charging and using the huge 60V battery pack.

The Romeo Ultra II in Detail

The Romeo Ultra II is a large, powerful full-suspension e-bike. The 100mm air fork has adjustable air pressure and compression, and the 50mm air shock has rebound adjustment.

Eahora confirmed to us that the bike can carry up to 330lb, as this isn’t clearly stated on the product web page. The Romeo Ultra II is rated IPX6, a solid rating for an off-road bike.

We’ve mentioned it already, but it’s worth repeating that this thing is extremely heavy for an e-bike. This makes it hard to handle, move, transport, and work on.

The Romeo Ultra II has a motorcycle-style seat and upright ride position. It comes in one size with a choice of black or grey paint. It’s not clear who the bike will fit, as the Eahora website says 5’5” to 6’9” in one place and 5’7” to 6’4” in another. We’d lean toward the narrower range.

The motors are controlled using the twist throttle on the right grip or cadence sensor-modulated pedal assist. The 40.5lb battery is semi-integrated into the bulky down tube structure, where it’s secured with a keyed lock. The control pad lets the rider choose between using the front, rear, or both motors. The included 7A charger charges this behemoth in 10 to 12 hours.

This bike rolls on 26” wheels with beefy 4” tires that have a chunky off-road tread. The hydraulic disc brakes include see-through fluid reservoirs, two-piston hydraulic calipers, and a set of 3mm-thick, 240mm rotors.

Shifting is by Shimano, with an underslung trigger shifter controlling a Tourney 7-speed derailleur. There’s a 42t chainring and single-sided guard at the front, and a 14-28t cassette at the back. Given the bike’s $3,000 price tag, this bottom-tier drivetrain is disappointing.

The display is a 4” full-color LCD in the center of the handlebar with hard rubber grips on each side. On the left, there’s a five-button control pad and an underslung horn button. On the right, we have the twist throttle and the trigger shifter.

For accessories, the Romeo Ultra II comes with a bright headlight, a taillight with braking function, fenders, and mounts for a rear rack.

Testing the Eahora Romeo Ultra II

We’ve never tested an e-bike with so much power or battery capacity, so for these tests, I’ve compared the Romeo Ultra II with the most powerful models we have tested.

Hill Climb Tests

The Ultra II raced up our less-steep hill test in just 1:35, averaging 36.9mph. That’s 50% faster than the bikes we typically test, which need at least three minutes to get up this hill.

The result of the shorter, steeper hill climb test was no less impressive, the Romeo finishing in just 1:12. Our previous champion, the QuietKat Lynx, took 1:57.

Accelerations Tests

As expected after its great results in the hill-climb tests, the Romeo destroyed the competition in the acceleration tests. Using a single motor, the bike accelerated from 0 to 20mph in six seconds, whether using the throttle or pedal assist. With both motors engaged, it took just four seconds.

Range Test

The impressive results continued in the range tests. In the highest assist setting with both motors running, the Romeo Ultra II reaches speeds above 40mph. Even with insane acceleration and high speeds, the battery lasted 72.75 miles. This is the longest range we’ve had from any e-bike we’ve tested.

Brake Test

The only disappointing result was in the brake test. Most e-bikes we’ve reviewed take 18 to 20 feet to stop from 20mph, and the best need just 15 feet. Given its weight, however, it’s perhaps unsurprising that the Romeo Ultra II took 22.5 feet to stop. So, despite those beefy brake rotors, it’s pretty clear the two-piston brakes are no match for a 177lb bike that can travel at more than 40mph.

Riding the Eahora Romeo Ultra II

The Ultra II is a beast, and its huge mass is immediately apparent. Luckily, it has a walk mode that activates by holding the down button when the bike isn’t in “P” or Parking mode. Pulling the brake lever takes the bike out of Parking mode.

Mounting the Romeo, it feels like straddling a motorbike. Set to single-motor operation, the Romeo accelerates like a regular 750W or 1,000W e-bike. It’s fairly powerful, but it does feel like those 177 pounds are holding it back.

In dual-motor mode, the bike surges forward, easily hitting high speeds. The choice of single and dual-motor modes, combined with the five PAS levels, provides a reasonable range of motor outputs.

The max assist level is very powerful, and the bike rockets forward upon applying throttle. In tight spaces and over loose terrain, it’s important to choose a lower assist level. When accelerating quickly in PAS 5, the tires easily break traction.

The cadence sensor is reasonably sensitive, and assist kicks in quickly when pedaling, but it’s clear that pedaling wasn’t a priority for Eahora when designing this bike. Like most motorcycle-style e-bikes, pedaling is uncomfortable, and the gearing is limited.

This bike easily cruises at speeds between 30 and 40mph. In many cases, I was keeping up with traffic and even passing cars on my local roads. My 23-mile commute usually takes an hour on another e-bike travelling 20-25 mph. On this bike, I was doing it in 30 to 40 minutes.

The Romeo’s speed is both exhilarating and challenging. It straddles the line between e-bike and motorcycle. I often felt like I should really be mingling with traffic like a motorbike, but unlike a true motorcycle, the Romeo doesn’t have mirrors, turn signals, or a loud exhaust, so extra caution is required, especially in urban environments.

Eahora calls the Romeo Ultra II an off-road bike, but it’s too heavy for going off-road. There’s also the firm, unforgiving suspension. Rear impacts send vibrations shuddering through the frame and seat, and simple washboarding and bumps rattle the Romeo and knock it around, forcing the rider to slow down significantly over terrain that other e-bikes comfortably handle. The suspension offers little benefit, regardless of how the fork’s compression or shock’s rebound are set. The fork is also noisy and slams through all of its travel with a loud clunk.

Overall, I have little confidence in the Romeo’s off-road performance or ability to withstand regular off-road use, especially at high speeds. We recommend keeping this beast on the road.

Conclusion

Eahora’s Romeo Ultra II delivers motorcycle-like speed and acceleration that redefines what we expect from an e-bike. With its dual 2,500W motors, this beast rockets from 0 to 20mph in just four seconds and cruises comfortably at over 40mph. It dominated our hill climb, acceleration, and range tests, posting the best results we’ve ever recorded.

But all that power comes with considerable trade-offs. At 177.8lb, this thing is ridiculously heavy, making it hard to maneuver, store, transport, or service.

Off-road, the suspension is hopeless, but more worryingly, the power and speed don’t comply with e-bike rules, so the bike can’t be ridden as an electric bicycle anywhere. It also lacks UL safety certification, and the brakes really need to be better on a bike this heavy and fast.

The Romeo Ultra II isn’t an e-bike. It’s a motorcycle with pedals. Those who want raw speed and power and can handle the weight and legal complications should enjoy the exhilarating ride. However, it also raises the question: Why not just buy an actual motorcycle?

Score Breakdown

• Build quality: 55
• Performance/Innovation: 75
• Design: 70
• Ride quality: 65
• Price/Value: 60

Overall: 65

Detailed Specs

Electric Bike Class: Unrestricted
Warranty: 1-year limited warranty
UL Certification: No
IP Rating: IPX6
Battery Weight: 40.5lb
Total Weight: Claimed: 174.17lb – Actual: 177.8lb
Motor Brand: Eahora
Motor Type: Front and rear hub
Motor Nominal Output: 2,500W x 2
Max Torque: 120Nm x 2
Battery: 60V, 80Ah (4,800Wh)
Range Claimed: 235 miles
Range Tested (Dual-Motor, PAS 5): 72.75 mi – 3,128 ft. – 22.2mph avg.
Top Speed: 50mph
Throttle: Half-twist
Pedal Assist: 5 levels
Sensor Cadence
Charger: 67.2V 7A
Charge Time: 12 hours
Display: 4” Color LCD w/ Bluetooth and USB port
Frame: Steel
Fork: Air suspension, 100mm travel
Shock Air shock, 50mm stroke
Brake Levers: Hydraulic
Brake Calipers: 2-piston hydraulic
Brake Rotors: 240mm x 3.0mm
Crankset: 170mm 44t, single-sided guard
Derailleur: Shimano Tourney RD-TY300 7-speed
Shifter: Shimano SL-M315 trigger
Freewheel: 7-speed, 14-28t
Rims: Aluminum
Tires: 26” x 4” Blackcat
Fenders: Plastic full coverage
Lights: LED (2,500 lumen)
Grips: Integrated plastic
Saddle: Memory foam and faux-leather bench-style
Pedals: Wellgo 16/9 platform
Handlebar: 710mm riser
Kickstand: Single-sided
Payload Capacity: 330lb

Geometry Details

Reach: 21.3” (541mm)
Stack: 27.95” (710mm)
Stand Over Height: 34” (864mm)
Virtual Top Tube Length: 28” (711mm)
Saddle Height: 34.6” (879mm)
Wheelbase: 51.6” (1311mm)

This bike is absolutely amazing. It just has one con, and that is to hold the brakes to get it moving.

This thing is pretty awesome. For a long range, medium-to-high-powered e-bike, this bike might be a fantastic option.

… I 100% do not approve this bike. … If it isn’t broken, it is an awesome bike… But this one came broken, and they sent it to an influencer… you think that they would look at that type of stuff… I wouldn’t buy this bike…

Overall, I’ve been very impressed  with this bike and how it’s been holding up.

Now [price] is a pretty penny to ask for an electric bike, but I mean the speed, and the size of the battery, and the power on this thing… might justify it.

Overall, I really, really like this e-bike. For the price, it’s a lot of bike and a lot of range.