Thunder 2 EY4

About

If you have been following the high-performance electric scooter scene for any length of time, the name "Thunder" commands respect. The original model was, for a long time, the undisputed king of the road-the benchmark against which all other hyper-scooters were measured. But time moves fast in the micro-mobility world, and the engineers at Minimotors decided it was time to remind everyone why they sit at the top of the food chain. Enter the DUALTRON Thunder 2 EY4. This isn't just a fresh coat of paint; it is a complete reimagining of what a performance scooter can be, designed specifically to address the feedback from thousands of riders of the original generation.

The philosophy behind the Thunder 2 is one of excess and refinement. Where the original was raw and sometimes a bit rough around the edges, the Thunder 2 aims to be a more polished, yet significantly more violent machine. It positions itself squarely in the "hyper-scooter" category, targeting enthusiasts who aren't just looking to commute, but who are looking for a vehicle that rivals the acceleration of motorcycles. It is designed for the power user-the rider who demands 100 km/h speeds, massive range, and a chassis that can handle the abuse of high-speed asphalt carving.

What makes this specific version special is the inclusion of the "EY4" system. For years, DUALTRON relied on the classic EY3 finger throttle, but the EY4 brings the machine into the modern era with Bluetooth connectivity, a massive waterproof color display, and app integration. This scooter represents the bridge between the raw, mechanical power of the old school and the smart, connected future of electric mobility. It is a machine built for those who looked at the original Thunder and thought, "I love it, but I want more power and better technology."

Safety

When you are piloting a standing vehicle capable of hitting highway speeds, safety stops being a feature and starts being a necessity. The braking system on the Dualtron Thunder 2 is nothing short of exceptional, which is a relief given its power output. It employs a fully hydraulic braking system manufactured by Nutt, clamping down on massive 160 mm discs at both the front and rear. In the real world, the feel of these levers is buttery smooth but progressively firm. Unlike mechanical cable brakes that can stretch and fade, the hydraulic lines provide instant, confidence-inspiring stopping power that can lock the wheels on demand if you pull too hard-though the built-in ABS (Anti-Lock Braking System) helps mitigate skids.

Speaking of ABS, Dualtron's electronic ABS is a point of contention and praise in the community. It works by pulsing the magnetic braking rapidly to prevent wheel lock-up. While it creates a vibrating sensation that can be startling to new riders, it is undeniably effective at keeping the scooter upright during panic stops on loose or slippery surfaces. Beyond the brakes, the Thunder 2 features a double-clamp folding mechanism. The stem wobble that plagued earlier generations has been largely addressed here with a redundant locking system that makes the steering column feel like a solid, singular piece of metal, crucial for stability at 80 km/h or more.

Visibility has also seen a massive overhaul. The Thunder 2 is festooned with lights. You have the signature stem lights and deck mood lighting which make you visible from the side, but the real safety improvements are the dedicated turn signals and the powerful horn. The rear footrest now incorporates a high-visibility tail light that sits higher up, making you more visible to cars behind you. While the low-mounted headlights are decent for being seen, serious night riders often still add aftermarket lights to the handlebars for better throw, but out of the box, it is significantly safer than its predecessor.

Performance

Let's not beat around the bush: the performance of the Dualtron Thunder 2 is terrifyingly good. We are talking about a peak power output of 10 080 Watts. To put that in perspective, a standard rental scooter puts out about 350 Watts. The Thunder 2 has two massive motors that, unlike the previous generation, are often set to run in tandem constantly to manage the immense heat and current. When you mash the throttle, the torque is instantaneous. Riders often describe the sensation as having their arms pulled out of their sockets. It features an "Overtake" function (often a double-tap or button press) that unleashes the full current for short bursts, turning the scooter into a rocket.

Top speed is rated at approximately 100 km/h. In reality, reaching this speed requires a long stretch of road and a brave pilot, but getting to 70 or 80 km/h happens in the blink of an eye. The acceleration curve is aggressive. The updated controllers handle the 72 Volts of power with better efficiency, but they prioritize torque. Hill climbing is simply a non-issue. You could be a 120 kg rider facing a 35-degree incline, and the Thunder 2 will accelerate up the hill. It doesn't just climb; it conquers verticality with an arrogance that is addictive.

However, this power demands respect. The community notes that the throttle response can be jerky at low speeds because of the sheer amount of torque available. It is not a scooter you leisurely ride at walking pace through a crowd comfortably; it wants to run. The transition to the 72V system from the previous 60V system means that the power doesn't sag as the battery drains. You get strong pulls even when the battery is sitting at 40%, ensuring the fun factor lasts throughout the entire ride.

Design

The Dualtron Thunder 2 carries the industrial, aggressive DNA of the Minimotors lineage. It looks like a piece of military hardware from a cyberpunk future. The frame is constructed from aviation-grade aluminum alloy, finished largely in matte black with signature RGB lighting accents on the stem and swingarms. The most striking design element is the massive rear footrest (or spoiler). This isn't just aesthetic; it changes the way you ride. It allows the rider to shift their weight far back and plant their rear foot firmly to counteract the G-forces during acceleration. Without it, hanging onto the handlebars at full throttle would be exhausting.

The build quality feels dense and premium. Cables are wrapped and managed better than on older models, though the "spaghetti" of wires near the handlebars-a Dualtron trademark-is still somewhat present, albeit tidier. The deck is covered in a thick rubber mat rather than grip tape. This is a huge design win; it's easier to clean, provides excellent grip even when wet, and looks much sleeker. The folding mechanism uses a new generation double-clamp slider which is robust, though it takes a bit more time to fold and unfold than simpler commuter scooters.

Aesthetically, the EY4 display is a centerpiece. It sits in the middle of the handlebars, a large, bright, waterproof screen that looks like a modern dashboard. It elevates the look of the cockpit significantly compared to the cheap plastic throttles of the past. The buttons for lights, horn, and turn signals are now integrated into a dedicated multi-switch unit on the left handlebar, which is backlit and feels tactile and high-quality, moving away from the generic generic buttons used on cheaper scooters.

Comfort

Ride comfort on the Thunder 2 is dictated by its rubber cartridge suspension system. This is a signature Dualtron feature. Unlike spring or air shocks which compress linearly, the rubber suspension relies on the twisting of massive rubber rods inside the swingarms. Out of the box, the Thunder 2 usually comes with relatively stiff cartridges. This is intentional. At 90 km/h, you do not want a bouncy, soft suspension; you want stability. The stiff suspension keeps the scooter planted and prevents speed wobbles, but it means you will feel sharp bumps and cracks in the road more than you would on a soft-sprung scooter.

The beauty of this system, however, is its adjustability. Riders can swap out the rubber cartridges for softer or harder compounds (sold separately) to tune the ride to their weight and preference. Additionally, the suspension arm angle can be adjusted to change the ride height and geometry. While it requires some mechanical effort to change, this level of customization is rare. For long rides on smooth tarmac, the stock setup is like riding a sports car-firm, responsive, and connected to the road.

The 11-inch ultra-wide tubeless tires also play a huge role in comfort. These are "No Flat" tires, meaning they are less prone to punctures, a massive relief for anyone who has had to change a tire on a dual-motor scooter. The tires have a very flat, square profile. This provides a massive contact patch for stability in a straight line, making the scooter feel unshakeable. However, this profile makes the scooter feel a bit "heavy" when leaning into corners, requiring the rider to physically muscle the scooter into turns rather than just leaning gently.

Range

The power source for this beast is a massive 72V 40Ah battery pack using premium LG 21700 cells. In the world of electric vehicles, the quality of the cells matters as much as the capacity, and LG cells are top-tier, offering better longevity and safety. The manufacturer claims a maximum range of up to 170 km. As with all electric vehicles, this figure is achieved under "optimal conditions"-meaning a light rider, flat ground, and slow speeds. No one buys a Thunder 2 to drive slowly.

In real-world usage, riding aggressively with mixed throttle, bursts of speed, and hills, you can realistically expect between 70 km and 90 km of range. Even if you are pushing the machine to its absolute limits constantly, getting 50 km to 60 km is virtually guaranteed. This is exceptional. It means you can go out for a 3-hour group ride without range anxiety. It opens up the possibility of inter-city travel or long weekend explorations that simply aren't possible on lesser scooters.

Charging such a massive battery takes time. With the standard charger included in the box, a full charge from 0% to 100% can take up to 28 hours. However, the scooter features two charging ports (and a third port for an external range extender battery). Most owners invest in a fast charger (6.5A), which can cut the charging time down to around 6 hours. If you use two fast chargers simultaneously, you can be back on the road even faster, but managing the heat is important. For most users, overnight charging is sufficient.

Use and Practicality

We need to have an honest conversation about "portability." The Dualtron Thunder 2 weighs 47.3 kg. To put that in European terms, that is the weight of three large bags of cement. You are not carrying this up five flights of stairs. You are not folding it up to put under your seat on the bus. This is a vehicle that requires ground-level storage or a garage. While the stem does fold down to lower the profile, lifting it into the trunk of a sedan is a two-person job or a workout for a very strong individual. The size unfolded is also substantial; it has a large footprint.

However, for "last mile" commuting where the "mile" is actually 20 kilometers of suburban road, it is incredibly practical. It replaces a car. The IPX5 water resistance rating on the body and IPX7 on the display means you don't have to panic if you get caught in a light rain shower, although most riders still avoid heavy downpours to protect the bearings. The addition of the kickstand is robust enough to hold the weight, but you have to be careful parking on soft ground.

The new EY4 display and app connectivity add a layer of practicality previously missing. You can now lock the scooter digitally via the app, adjust the RGB lighting to your taste, and monitor battery health more accurately. The "Safe Mode" prevents accidental whiskey-throttling when you are just trying to move the scooter around by hand. These quality-of-life features make living with the beast much easier on a daily basis.

General Assessment

The DUALTRON Thunder 2 EY4 is widely regarded by the community as a masterpiece of brute force engineering. It successfully took the mantle from the original Thunder and fixed almost every major complaint. The stem is solid, the range is improved, and the power is absolutely ludicrous. It has cemented itself as a status symbol; showing up to a group ride on a Thunder 2 earns instant nods of approval.

However, it is not without its critics. Some long-time fans miss the ability to switch to single-motor mode to save battery or tame the ride, a feature removed in this iteration to protect the controllers. Others find the suspension too stiff for casual cruising. But the consensus is overwhelming: if you want one of the fastest, most reliable, and best-supported high-performance scooters in the world, this is the one to beat. It feels over-engineered in the best possible way.

It occupies a space where it isn't quite the most expensive scooter on the market (that goes to the Dualtron X Limited or Weped models), but it offers perhaps the best price-to-performance ratio in the ultra-high-end segment. It is a serious machine for serious riders, and it delivers on its promises of adrenaline and endurance.

Who Is This Scooter For?

This scooter is strictly for the experienced enthusiast. If you have never ridden an electric scooter before, do not buy this. The throttle sensitivity and sheer power can be dangerous for the uninitiated. It is designed for the rider who has outgrown their 60 km/h scooter and is craving the next level of thrill. It is for the adrenaline junkie who wants to keep up with traffic on main roads (where legal) and wants enough torque to accelerate out of any dangerous situation.

It is also an excellent choice for heavier riders. With a max load of 120 kg (and anecdotal evidence suggesting it handles much more), the stiff suspension and 72V power system mean that performance doesn't degrade significantly for riders over 100 kg. It is perfect for those who live in hilly areas where lesser scooters would stall.

Conversely, this scooter is not for the multi-modal commuter. If you need to take a train, climb stairs, or store your scooter in a small office cubicle, the Thunder 2 will be a nightmare due to its weight and size. It is also not for those on a tight budget, as the initial cost is high, and consumables like tires and brake pads will need replacing more often due to the high speeds and braking forces involved.

Community Feedback - Pros

• Insane Acceleration: The 10 080W peak power delivers G-force that riders describe as addictive and unmatched in this class.
• Solid Stability: The double clamp stem and steering geometry make it feel planted and safe at speeds over 80 km/h.
• Massive Range: Real-world usage of 70-90 km is consistently reported, reducing charging anxiety.
• Hydraulic Brakes: The Nutt braking system is universally praised for its stopping power and modulation.
• Rear Footrest: The integrated kickplate is a game-changer for riding stance, allowing for safer acceleration.
• Lighting: The addition of turn signals and the high-mounted tail light are seen as massive safety upgrades over the V1.
• EY4 Display: The new screen is bright, waterproof, and the app integration is a welcome modern touch.
• Build Quality: It feels like a tank; rattles and squeaks are minimal compared to competitors.
• Spare Parts: Being a Dualtron, parts availability and aftermarket support are the best in the industry.
• No-Flat Tires: The tubeless tires with sealant reduce the frequency of roadside repairs.

The community particularly loves the "Overtake" function and the raw feeling of the 72V system. Owners frequently mention that unlike other scooters that feel flimsy at high speeds, the Thunder 2 feels like a cohesive vehicle. The inclusion of the rubber deck mat instead of grip tape is also frequently highlighted as a major quality-of-life improvement for keeping the scooter looking clean.

Community Feedback - Cons

• Weight: At 47.3 kg, it is brutally heavy and difficult to lift or transport in cars.
• Square Tire Profile: Many riders dislike the stock tires for cornering, describing the "tipping point" as abrupt.
• Stiff Suspension: The stock cartridges are very hard, making for a jarring ride on rough roads unless swapped.
• No Single Motor Mode: Users complain about the inability to turn off the front motor for cruising or energy saving.
• Throttle Sensitivity: The initial acceleration can be jerky, making low-speed maneuvering in traffic difficult.
• Kickstand: The stock kickstand is often criticized as being too short or slightly flimsy for the scooter's weight.
• Charge Time: Without fast chargers, the 28-hour charge time is considered impractical.
• Eco Button Placement: The eco/mode buttons are sometimes hard to reach while riding aggressively.
• Price: It is a significant investment, and some feel a steering damper should be included at this price point.

The most common complaint revolves around the tires and suspension stiffness. Many enthusiasts immediately swap the stock tires for PMT (racing) tires which have a rounder profile for better cornering. The lack of a steering damper out of the box is also a sore point; while the scooter is stable, at 100 km/h, most riders feel a damper is mandatory for safety and resent having to buy it as an add-on.

Value for Money

Priced around 3 412 €, the Dualtron Thunder 2 EY4 is undeniably a luxury purchase. You could buy a decent used car for this money. However, when you compare it to other vehicles in the "hyper-scooter" category, the value proposition starts to make sense. You are paying for the LG battery cells-which are the most expensive component-and the proprietary Minimotors controllers which are known for their durability.

Compared to cheaper 72V alternatives, the premium you pay for the Dualtron gets you better quality control, a vast network of spare parts, and a resale value that holds up better than obscure brands. It is not a "bargain" in the traditional sense, but it is a "buy once, cry once" investment. You are getting a machine that is built to last thousands of kilometers. If you factor in the performance, the massive battery, and the improved safety features, it is fairly priced for the top-tier segment it occupies.

About the Brand

DUALTRON is the flagship brand of Minimotors, a South Korean company that effectively invented the dual-motor electric scooter category. They are the "Apple" or perhaps the "Porsche" of the e-scooter world. They have a long history of pushing the envelope regarding voltage, speed, and suspension technology. Their reputation is built on ruggedness and raw power.

While they have faced criticism in the past for slow innovation in design (using the same stems for years), they have a cult-like following. The community support is unrivaled; if you have an issue with a Dualtron, there is a Facebook group or a forum thread with the answer. Their customer service relies heavily on their distributor network, which is generally excellent in Europe and North America. They are known for keeping parts in stock for years, meaning your Thunder 2 won't become obsolete overnight.

Specifications

• Weight: 47.3 kg
• Max Speed: 100 km/h
• Range (Claimed): Up to 170 km
• Range (Real-world): ~70-90 km
• Motor Power (Rated): 4 000 W (Combined)
• Motor Power (Peak): 10 080 W
• Battery: 72 V 40 Ah LG 21700 Cells
• Battery Capacity: 2 880 Wh
• Brakes: Nutt Hydraulic Disc Brakes (160 mm) + ABS
• Suspension: 45-step Adjustable Rubber Suspension (Interchangeable Cartridges)
• Tires: 11 inch Tubeless Ultra-Wide (No-Flat Sealant)
• Max Load: 120 kg
• Display: EY4 Waterproof Smart Display with Bluetooth
• Water Resistance: IPX5 (Body), IPX7 (Display)
• Price: ~3 412 €

Known Alternatives

If the Thunder 2 catches your eye but you want to see what else is out there, the market is competitive. First, look at the DUALTRON Ultra 2. It offers a very similar 72V power system and speed but is designed with a more off-road focus, featuring knobby tires and a slightly different frame geometry. It's a great choice if your riding involves dirt paths as much as asphalt.

For those who want something that looks completely different, the VSETT 11+ is a direct competitor. It features a distinct "Captain America" color scheme (on some models), a dual-stem design for incredible front-end rigidity, and a "SuperBoost" mode. It is often slightly heavier but offers a very plush suspension system that is more comfortable out of the box than the Dualtron.

Finally, consider the KAABO Wolf King GTR. This scooter uses a motorcycle-style front fork suspension rather than the swingarm style of the Dualtron. This makes it incredibly stable at high speeds and arguably better for off-road use. It has a cult following for its rugged "roll cage" design and raw acceleration, often trading blows with the Thunder 2 in drag races. Another strong contender is the MUKUTA Mukuta 10 Plus, which offers modern features and great performance, often at a slightly more accessible price point.