Dualtron Storm New EY4 vs Dualtron X2 UP - Which Hyper-Scooter Actually Deserves Your Garage?

Fast Answer for Busy Riders ⚡ (TL;DR)

The Dualtron X2 UP takes the overall win here: it rides more like a tiny luxury motorbike than a scooter, with far superior comfort, stability and long-distance capability. If you want that "magic carpet" feel at serious speeds and have ground-floor storage or a garage, the X2 UP is simply the more satisfying machine to own.

The Dualtron Storm New EY4 strikes back with its removable battery, lower weight, better weather preparedness and slightly more realistic day-to-day usability if you actually have to live with your scooter rather than just admire it. It suits riders who want big power but still need some semblance of practicality.

If you're torn, think of it like this: Storm New EY4 is a brutal electric vehicle you can just about integrate into normal life; X2 UP is a rolling monument to excess you adapt your life around. Now, let's dig into what that really feels like on the road.

Both scooters sit in that "hyper-scooter" class where power stopped being the limiting factor a few generations ago. I've spent proper saddle-time (well, deck-time) on each, from broken city tarmac to fast open roads, and they're more different in personality than their spec sheets suggest. One tries to be a usable monster, the other just leans fully into being a monster. Let's unpack how they compare when the honeymoon phase wears off and you're left with a heavy lump of metal to actually ride, maintain and store.

The Storm New EY4 is for the rider who wants ridiculous speed and torque but still needs to charge the thing in a flat, maybe roll it through a doorway, and occasionally pretend this is transport and not a lifestyle decision. The X2 UP is for the rider who has already given up on pretending.

If you're still reading, you're clearly scooter-obsessed enough that the nuances matter. Good - that's where the interesting stuff is.

Who Are These For, and Why Compare Them?

Both the Storm New EY4 and the X2 UP live in that eye-watering price bracket where you could also buy a used motorbike or a very respectable e-bike. They're aimed at experienced riders who want car-replacement levels of performance rather than "last-mile" convenience.

The Storm New EY4 is a 72 V hyper-scooter with a removable battery and a more traditional Dualtron cartridge suspension. It targets the rider who wants huge power and range, but with at least a token nod to practicality: storing downstairs, charging upstairs, and not needing a loading ramp just to move it.

The X2 UP, also running a 72 V system but with a bigger battery and enormous hydraulic suspension, is in a different psychological category. This is a long-distance cruiser first, scooter second. It's meant for riders who want to cruise at traffic speeds for long stretches, in comfort, and who consider "portability" a nice theoretical concept other people care about.

They compete because, on paper, they overlap in price and performance. In reality, they offer very different ownership experiences - and your tolerance for weight, bulk and comfort (or lack of it) will decide which one you love and which one you quietly regret.

Design & Build Quality

In the flesh, both scooters feel like serious machinery, not toys - but they take different approaches. The Storm New EY4 looks like the classic Dualtron war machine: angular, compact by hyper-scooter standards, with that industrial "I was milled from a solid block of spaceship" vibe. The removable battery deck is cleverly integrated and doesn't scream "modular", which is nice.

The X2 UP, on the other hand, doesn't try to look like a scooter at all. It's a low, long, hulking slab of metal with 13-inch wheels that visually dominate the whole chassis. Next to the Storm, it makes the Storm look almost reasonable - like parking an SUV beside a small lorry. The frame feels even more overbuilt than the Storm's; you notice the extra rigidity when you lean hard into corners or hammer the brakes.

In the hands, buttons and switchgear on both are decent but not luxurious. The shared EY4 display modernises the cockpits nicely - finally something that doesn't look like it escaped from a 2009 budget e-bike. Cable routing is slightly cleaner on the X2 UP, while the Storm's deck and removable battery seams introduce more areas that can creak or collect grime over time.

Build quality overall is solid on both, but not flawless. You still get the occasional plastic piece that feels cheaper than the price tag suggests, and both scooters benefit from a once-over with threadlocker out of the box. The X2 UP's sheer mass does give it a more "solid" feel when you slam over rough patches - the Storm can feel a bit more rattly by comparison once you're riding it hard.

Design philosophy in one line: Storm New EY4 is "hyper-scooter, but try to live with it", X2 UP is "this is essentially a tiny electric tank, deal with it".

Ride Comfort & Handling

This is where the two machines really diverge. After about 5 km of nasty, patched-up city asphalt, the Storm New EY4 reminds you that yes, these are still rubber cartridges under there. It's stable and controlled, but the suspension is on the firm, sporty side. Expansion joints, sharp pothole edges and cobbles are all very much part of the sensory experience. You don't get punished, but you don't exactly float either.

The Storm's wide deck gives you room to move your stance, and the wider bars are a huge improvement over older Dualtrons. Quick lane changes feel confident, and carving at speed has that classic, slightly stiff Dualtron feel: planted, but with a hint of nervousness if the road surface is truly awful.

Jump onto the X2 UP straight after and it's almost comical. The hydraulic suspension with big 13-inch tubeless tyres just erases most of the noise the Storm passes on to your ankles. Manhole covers and small potholes disappear under you with a gentle "thunk" instead of a kick. After a decent stretch on broken tarmac, you step off the X2 with knees and back still in a good mood; on the Storm, you're more aware you've been standing on something firm.

Handling-wise, the Storm is the more agile of the two. Its smaller footprint and lighter mass make it less of a handful at lower speeds, in tight turns or weaving through tighter city gaps. The X2 UP, by contrast, feels like steering a freight train. Very stable, very sure-footed, but you plan your lines in advance. The steering damper on the X2 gives a lovely controlled resistance at high speed, but in tight car parks or pedestrian areas, the sheer bulk is constantly in your mind.

If your daily ride is a mix of rough surfaces and mid-speed cruising, the X2 UP is genuinely in another league for comfort. If you ride more technical, twisty city routes, the Storm's slightly harsher but more agile setup can actually be more manageable - as long as your joints are cooperative.

Performance

Both scooters have more power than 99 % of riders can sanely use on public roads, but they deliver it differently.

The Storm New EY4 has that classic square-wave Dualtron punch. The first squeeze of the throttle feels like the scooter is trying to escape from under you - especially in the higher power modes. It launches hard, with a very "on/off" personality if you're not smooth with your thumb. Once you're used to it, it's properly entertaining: overtakes are effortless, and hill climbs feel like flat ground until the battery is significantly drained.

Top-end speed on the Storm is way beyond what most people will ever legally see, but what matters more is how it carries speed. Up to commuting-fast territory it feels urgent and alive, then more gradually eases towards its upper limit. It's quick enough that your courage will probably run out before the motor does.

The X2 UP is more deceptive. On paper it actually peaks lower in motor wattage, but in practice the combination of weight, longer wheelbase and hydraulic suspension changes the sensation completely. Acceleration is still brutal, but it feels more like being pushed by a big, silent engine rather than yanked by a manic one. You roll on the throttle and the scooter just surges - less twitch, more locomotive.

Where the X2 really pulls ahead is cruising. Sitting at speeds that would have the average scooter howling feels almost lazy on the X2. The chassis doesn't get nervous, the suspension isn't overwhelmed, and the motors feel unbothered. Long high-speed sections feel less mentally and physically tiring, simply because the machine is so composed.

Braking on both is strong and confidence-inspiring, with hydraulic discs and motor braking. The Storm's lighter weight makes emergency stops feel more immediate; the X2's extra mass means you feel the inertia, but the brakes and tyres are up to the job. The electronic ABS on both has that familiar Dualtron pulsing feel - effective, if not the most refined implementation in the world.

Hill climbing? Neither of these scooters care. If your local "steep hill" is a problem, it's for your courage, not the controllers.

Battery & Range

Both packs are big enough that you stop thinking in "my commute" and start thinking in "my day". The Storm New EY4's battery is slightly smaller, but still generously overkill for most riders. Ride with a mix of sensible speeds and occasional fun bursts and you can cover serious distance before you start glancing nervously at the voltage reading. Hammer it constantly in the fastest modes and, unsurprisingly, the gauge drops much faster - but you still get more than just a quick blast.

The X2 UP steps things up again with its larger pack. In real life, you're looking at not just "commute plus joyride", but "big day out" range if you ride at sane speeds. Range anxiety is much harder to trigger - you start getting bored or cold before the scooter gets tired. Even riding in a decidedly non-eco fashion, it keeps going long enough to make your legs complain before the battery does.

Efficiency-wise, the Storm has a small edge simply because it isn't dragging around quite as much mass and tyre. You feel that in stop-start city riding: every time you launch the X2's 66 kg lump off the line, you're paying in watt-hours. Once you're up to speed and cruising, the X2's big wheels and relaxed ride encourage holding speed more, which doesn't help efficiency either.

Charging is a mild inconvenience on both, a serious one if you only use the stock chargers. The Storm softens the blow with a reasonably fast included charger, which actually makes overnight or workday top-ups realistic. The X2 UP, with its larger pack, practically expects you to invest in fast chargers if you don't want to measure charging in half-day chunks.

The removable battery on the Storm is a major real-world advantage: charge in your flat, leave the chassis in a garage or bike room. With the X2, the whole behemoth has to go where the plug is - which narrows down who can realistically own it.

Portability & Practicality

Let's be honest: neither of these is "portable" in the normal scooter sense. You're not slinging either over your shoulder. But there are degrees of impracticality, and here the Storm New EY4 is the less ridiculous one.

The Storm is heavy. You feel every kilo if you try to lift the whole thing, and carrying it up more than a few steps is a gym session you didn't ask for. But if you absolutely must, a reasonably fit adult can grunt it into a car boot or up a short set of stairs. The folding mechanism is decent and locks solidly; once folded, it's still a big package, but manageable enough for a large car or wide hallway.

The removable battery is, again, the Storm's ace: you don't have to move all of it every time. You can roll the chassis somewhere safe, pull the (still heavy) battery and charge upstairs. It's not elegant, but it is workable.

The X2 UP simply doesn't play in this game. Moving it feels like wrestling a sleeping bear on wheels. You can roll it easily because of the big tyres, but any lifting is a two-person job unless you really trust your lower back. Even folded, it eats half a room and laughs at most car boots. Stairs are essentially off the menu.

In daily use, this means the Storm can just about serve someone in a flat or townhouse with some compromises. The X2 really wants ground-floor storage or a proper garage. If your living situation doesn't match that, the ownership experience gets old very quickly, no matter how magic the ride feels.

Safety

Both machines are, to their credit, built around the idea that travelling this fast on two small wheels is fundamentally risky and needs proper hardware to mitigate that.

Brakes on both are strong hydraulic systems with motor assistance. The Storm's setup feels sharp and direct, helped by the slightly lower weight. You can haul it down from silly speeds with confidence, though on truly rough surfaces the firm suspension can make the rear a bit more skittish if you're greedy with the lever.

The X2 UP's braking feels more "big bike" - there's more mass to manage, but the wider tyres, longer wheelbase and steering damper work together to keep everything calm. Panic stops in a straight line feel more controllable on the X2, even if the distances are similar, simply because the chassis is less jumpy.

Lighting is decent out of the box on both, with the Storm arguably doing a better job at genuine "see the road" illumination thanks to its beefy front lights. The X2's lights are adequate for urban use but, like most scooters, still benefit from an extra bar light if you ride a lot of unlit country roads.

Tyre grip is excellent on both in the dry. The Storm's 11-inch ultra-wide tubeless tyres give a stable, go-kart-like feel; the X2's 13-inch setup feels more like a small motorcycle. In the wet, the X2's extra contact patch and weight help a bit with stability, but it also means more momentum if you do lose grip. Neither scooter loves heavy rain, and the Storm's better stated water resistance gives it a slight edge for riders who occasionally get caught out by the weather.

Stability at speed is where the X2 UP pulls clearly ahead. The steering damper and chassis geometry make high-speed runs feel more predictable and less twitchy. The Storm has improved massively over early Dualtrons, but if you regularly see the upper half of the speedometer, the X2 is simply the more reassuring platform.

Community Feedback

Price & Value

Interestingly, the X2 UP often undercuts the Storm New EY4 on sticker price despite offering more battery and more comfort, which is not what you'd expect if you just looked at their reputations. That alone says something about where each model sits in Dualtron's current strategy.

The Storm New EY4 charges you a sort of "flagship 72 V with removable battery" tax. You're paying for legacy, modularity and a fully updated cockpit in a relatively compact hyper-package. The problem is that, in the current market, you can find scooters with similar or better comfort and equal or higher performance for similar money - albeit often without the removable pack or Dualtron badge.

The X2 UP is undeniably expensive in absolute terms, but in the rarefied world of super-scooters, its combination of comfort, range and outright road presence actually makes the price feel... not exactly fair, but at least coherent. You can plausibly replace many car journeys with it and not hate yourself physically in the process, which helps justify the outlay if you really use it.

If you buy either as a weekend toy to show off in the car park, both are overpriced. If you use them as genuine vehicles, the X2 UP feels like you're extracting more "experience per euro", while the Storm leans more on its removable battery and brand familiarity to defend its price.

Service & Parts Availability

Both scooters benefit from the same core advantages: they're Dualtrons. That means widespread parts availability in Europe, plenty of third-party spares, and a huge ecosystem of how-to guides, upgrade kits and opinionated forum posts.

The Storm New EY4 has the edge in one specific area: more components are shared or at least related to long-standing Dualtron models, especially around the wheels and cartridge suspension. That means parts are often easier to source, and more workshops are used to working on them. The removable battery also simplifies certain types of service - you can pull it out and work on the deck without lugging the whole scooter around.

The X2 UP's unique size and 13-inch tyres mean some parts, especially rubber, are a bit more niche. You may wait longer or pay more for the correct tyres, and fewer general scooter shops are truly comfortable working on something this heavy. That said, specialist Dualtron dealers usually love the X2 crowd, because those owners tend to spend freely on maintenance and upgrades.

In both cases, your local distributor matters more than the factory. But as platforms, neither feels like a dead end in terms of parts or know-how.

Pros & Cons Summary

Parameters Comparison

Final Verdict - Which Should You Choose?

If you strip away the spec sheet glamour and focus on how these scooters actually fit into a life, the decision becomes surprisingly straightforward.

The Dualtron Storm New EY4 is for the rider who wants a savage, fast, long-range scooter that can just about pass as "practical" in the real world. The removable battery, slightly lower weight and better water resistance make it more forgiving if you live in a flat, have to share space with humans, or occasionally get caught in the rain. It's still a big, heavy, intimidating machine - just one you can vaguely coexist with.

The Dualtron X2 UP is for the rider who says: "I want the best ride quality and stability I can get, and I'll rearrange my life to own it." If you have a garage or ground-floor storage, regular long commutes or weekend tours, and you value comfort as much as speed, the X2 UP simply feels more special on the road. It's calmer at speed, kinder to your body, and more convincing as a true car-replacement proposition.

Between the two, the X2 UP is the more complete riding experience - as long as you can live with the size and weight. If not, the Storm New EY4 is the compromise: still wildly fast, still very capable, but not quite as magical once the road gets rough and the kilometres add up. Choose with your storage and knees in mind, not just your ego.

Numbers Freaks Corner

These metrics break down how efficiently each scooter uses money, weight and energy. Price-per-Wh and price-per-km/h show pure value for money in battery and speed. Weight-based metrics tell you how much mass you're moving for each unit of performance or range. Wh per km shows real-world energy thirst, while power-to-speed and weight-to-power capture how aggressively the hardware is tuned. Charging speed is simply how quickly you can refill the "tank" in practice.

Author's Category Battle

Overall Winner Declaration

In the Numbers Freaks Corner, the DUALTRON Storm New EY4 scores 5 points against the DUALTRON X2 UP's 5. In the Author's Category Battle, the DUALTRON Storm New EY4 gets 29 ✅ versus 22 ✅ for DUALTRON X2 UP (with a few ties sprinkled in).

Totals: DUALTRON Storm New EY4 scores 34, DUALTRON X2 UP scores 27.

Based on the scoring, the DUALTRON Storm New EY4 is our overall winner. Between these two heavy hitters, the Dualtron X2 UP is the one that actually feels worth reshaping your routine around. Its comfort, stability and long-range calm make every ride feel like a deliberate choice, not a compromise - it simply delivers a more satisfying, grown-up experience on real roads. The Storm New EY4 remains a brutally quick, cleverly packaged hyper-scooter, and for riders juggling flats, charging logistics and bad weather it may be the only realistic option. But once you've tasted the X2 UP's magic-carpet ride, the Storm feels more like something you endure for its power, while the X2 is something you look for excuses to ride.

That's our verdict when we try to stay objective – but hey, riding is mostly about emotions anyway, so pick the one that will make you look forward to your commute every single day.