INMOTION RS LITE vs DUALTRON Storm New EY4 - Two Hyper Scooters Walk Into a City...

Fast Answer for Busy Riders ⚡ (TL;DR)

The DUALTRON Storm New EY4 edges out as the more complete hyper scooter: stronger real-world performance, better cockpit and lighting, removable battery, and stronger support ecosystem make it the more future-proof choice if you can stomach the price and weight. The INMOTION RS LITE fights back with a more comfortable, adjustable suspension, excellent water protection, and a friendlier price tag, making it the more sensible option for riders focused on comfort, weather, and value rather than bragging rights.

Choose the RS LITE if you want a fast, very stable, cushy "electric SUV" that you can ride in the rain and over broken tarmac without shaking your fillings loose. Go Storm New EY4 if you want maximum punch, a removable battery for apartment life, and that unmistakable Dualtron big-boy feel, and you're willing to pay - in euros and in kilograms.

Both are serious machines with compromises; the interesting bit is which set of compromises matches your life. Keep reading and we'll dissect exactly that.

Hyper scooters like these used to be exotic toys for a handful of lunatics on YouTube. Today they're legitimate car replacements for people who'd rather thread through traffic than sit in it. I've put plenty of kilometres on both the INMOTION RS LITE and the DUALTRON Storm New EY4, in good weather, bad weather, and the usual European "why does this road even exist?" surfaces.

On paper they live in the same world: big 72V batteries, brutal acceleration, motorcycle-level speeds and enough mass to qualify for their own postcode. In practice, they have very different personalities. The RS LITE is the adjustable, water-loving, comfort-oriented bruiser; the Storm is the brutalist power tool with a removable heart and a flash of RGB.

If you're trying to decide which one to live with, not just test in a car park, the differences matter a lot more than the spec sheet noise. Let's break it down properly.

Who Are These For, and Why Compare Them?

Both scooters sit firmly in the "hyper scooter" class: prices in the mid-to-upper four figures, power well beyond what commuting actually needs, and weights that will make your gym membership redundant.

The INMOTION RS LITE is the "entry" variant of InMotion's RS platform, which is a bit like calling an F1 car the "entry-level race car". It targets riders who want crazy performance without paying top-tier money, and who care about comfort, all-weather reliability, and a bit of gadgetry (adjustable geometry, hydraulic suspension) more than about squeezing every last km/h out of the platform.

The DUALTRON Storm New EY4 is Minimotors' mature take on the legendary Storm: same intimidating presence, but with a modern cockpit, wider bars, better cooling and that removable battery that flatters anyone living above ground floor. It's for the rider who prioritises raw thrust, brand heritage, tuning options, and a support network over cushy suspension and price.

They're direct competitors because they promise essentially the same thing - a car-replacement 72V scooter for serious distance and serious speed - but they get there with very different philosophies.

Design & Build Quality

Park them side by side and you immediately see the split in design language.

The RS LITE is all angular mecha: C-shaped suspension arms, dual stems, and that height-adjustable chassis that looks part Dakar buggy, part sci-fi forklift. It feels dense and nicely machined, with very few "what were they thinking?" details. The deck is broad and rubber-coated, the folding mechanism is stout and deliberately overbuilt, and the cable routing is tidy enough that you don't feel like you've adopted an electronic octopus.

The Storm New EY4 goes full cyberpunk industrial. Exposed aluminium, deck-as-battery, big rear footrest/controller housing, and lots of flat surfaces that scream "I was milled, not bent". The EY4 screen looks modern and finally drags Dualtron cockpits out of the last decade. The folding collar and double clamp are significantly better than early Dualtron designs, though you can still feel the odd creak if you neglect maintenance.

In the hands, both feel solid, but in different ways. The RS LITE is more "engineered object" - less flex, more sense of a unified frame. The Storm feels like a heavy-duty construction tool: strong, yes, but with some exposed edges and hardware that remind you bolts will need periodic love. Dualtron's finishing has improved, yet some plastics and trim pieces still feel a half-step below the price tag.

Pure build solidity is surprisingly close; for perceived refinement and "this looks like someone thought it through end-to-end", the RS LITE has a slight edge. For raw, time-tested chassis toughness and aftermarket parts ecosystem, the Storm hits back.

Ride Comfort & Handling

This is where they part ways dramatically.

The RS LITE runs fully adjustable hydraulic suspension with generous travel. In the real world, that means potholes you'd brace for on other scooters just... happen. The deck stays mostly flat, your knees stay sane, and you don't arrive home counting new rattles in your spine. With the ride height dropped, it feels planted and surprisingly nimble for such a heavy lump; raise it up and it becomes a high-clearance "urban SUV" that can climb kerbs and deal with broken country lanes without drama.

The Storm's rubber cartridge suspension is a different species. On smooth tarmac, it's brilliant: very little bobbing, the chassis feels taught and precise, and high-speed cornering is superbly controlled. The wider bars on the EY4 transform the steering; older narrow-bar Dualtrons always felt a bit nervous at speed, this one is calmer. But on rough cobbles, patchy asphalt or tram-track hell, you feel a lot more of the surface. It never feels unsafe, but comfort is clearly not the first priority.

After a half-hour of bumpy urban riding, the RS LITE leaves you much fresher. The Storm feels more demanding; you're standing in an athletic stance, reading the road, working your knees. Fun when you're in the mood, tiring when you just want to get home.

Handling-wise, both are stable at silly speeds, but the RS LITE's dual stem and lower potential ride height give it an extra layer of confidence against wobbles. The Storm counters with that wide bar and long, low chassis that encourages fast sweepers rather than tight slalom work. Think: RS LITE = comfy fast touring, Storm = fast aggressive carving.

Performance

Neither of these scooters is slow. Both will embarrass most cars away from the lights and turn casual throttle inputs into serious velocity faster than your brain would like.

The RS LITE's dual motors and sine-wave controllers deliver power in a smooth, progressive way. You squeeze the throttle and it builds like a strong electric motorcycle: rapid, but not snappy. That's wonderful for control in the wet and in traffic. It cruises at urban-traffic speeds with an almost lazy feel; you're nowhere near the limit of what the motors can do, so there's a nice sense of overhead.

The Storm, by contrast, is a hooligan. Peak power is on another level, and you feel it. Even with settings toned down, the trigger can be abrupt at low speeds. Above jogging pace, that aggression turns into enormous mid-range shove: overtakes are effortless, hills vanish, and it keeps piling on speed in a way the RS LITE just can't quite match. If you like that "I barely twisted and I'm at full chat" sensation, the Storm obliges.

Hill climbing: both destroy hills that humiliate rental scooters. The RS LITE powers up gradients with calm determination, still able to accelerate uphill. The Storm treats big hills as an opportunity to flex; it surges uphill with that "are we even going up?" kind of indifference. If you live somewhere very hilly or ride with heavy loads, the Storm has the more ridiculous surplus.

Braking performance is solid on both: proper hydraulic callipers, large rotors, and electronic braking to back them up. The RS LITE's Zoom setup is strong and predictable, with a natural lever feel. The Storm's NUTT brakes bite a little harder and, combined with motor braking and ABS, can haul you down from big speeds with grim efficiency. In panic stops, the Storm feels slightly stronger; in daily modulation, the RS LITE feels a hair more natural.

Battery & Range

Both scooters have batteries big enough that "range anxiety" becomes "will my legs give up before the pack does?". But they're not equal.

The RS LITE's pack is slightly smaller, but still comfortably in the "cross-a-city-twice-and-complain-later" category. Ridden briskly - think fast commuter pace with plenty of overtakes - it will do a solid long ride without making you stare at the battery gauge every five minutes. Pack quality is good, and the 72V architecture keeps performance reasonably consistent until you're well into the discharge.

The Storm's LG pack is both larger and built from high-end cells. In similar riding conditions it simply goes further. If you keep your right thumb under control, day-long rides are very realistic. Go full send everywhere and you still have range most scooters can only dream of. Combined with the option of a second battery (if your wallet and biceps allow), it's a clear step up for range-heavy use cases.

Charging is another interesting split. With the RS LITE, the stock charger is... leisurely. Overnight charges are the norm unless you invest in a second unit to halve the time. The Storm includes a fast charger in the box, which makes a huge difference: plug it in during a workday or evening and you're good again. That, plus the fact you can remove the pack and take it indoors, makes the Storm much easier to live with in European apartments with no convenient sockets in the bike room.

Efficiency-wise, both are on the hungry side - they're big, powerful bricks with tyres to match - but the RS LITE, ridden sensibly, sips a touch less per kilometre than the Storm at similar speeds. Ride them like you stole them and both will chew through watt-hours accordingly.

Portability & Practicality

Let's be blunt: neither of these should be in the same sentence as "portable". They're both well north of what most people are willing or able to carry. You guide them, you don't lift them, unless you absolutely must.

The RS LITE folds down into a long, chunky package. The mechanism itself is robust and easy enough to operate, but you quickly realise it's more about lowering the height for storage or boot transport than anything else. Carrying it up more than a couple of steps is a gym session.

The Storm is even heavier, and you feel every extra kilo when you need to pivot it in a tight hallway or push it up a ramp. The saving grace is the removable battery: you can separate the mass into two still-heavy, but more manageable, pieces. In practical terms, this means you can leave the chassis in a secure ground-floor room and just take the battery upstairs to charge, which is a big deal if your building isn't scooter-friendly.

For everyday practicality as a car replacement, both are good: big tyres, proper lights, indicators, loud horns, kickstands that don't fold at a sneeze. But the RS LITE's high water protection means you can ride into rain without that little voice worrying about electronics. The Storm's IP rating is decent, just not as bombproof, so I'm slightly less relaxed taking it out in truly foul weather.

Safety

Speeds like these mean safety is mostly about three things: stopping, seeing/being seen, and stability.

On braking, as mentioned, both are strong. The RS LITE's feel a touch more progressive, the Storm's a bit more "grabby but mighty". In both cases, full-power braking will happily push you towards the front of the deck if you're not braced. The Storm's magnetic ABS is a nice layer of insurance when you absolutely jam the levers on slick surfaces.

Lighting: the Storm takes this one. Those dual high-power headlights actually let you ride fast at night without a head torch, and the RGB plus indicator package makes you unmissable from all angles. The RS LITE's lights are good and far better than the usual token LEDs some brands ship with, but the Storm's are clearly a level up in both reach and brightness.

Stability is more nuanced. The RS LITE's dual stem, long wheelbase and lower potential ride height give it phenomenal straight-line calm. I've done long, fast stretches with one hand hovering over the brake and the other resting lightly on the bar without any hint of wobble. The Storm, with its broader bars and improved stem, is vastly better than old Dualtrons and feels rock-solid up to "I should really slow down now" territory, but if you push into the top of its envelope without a steering damper you're more conscious of minute inputs and road imperfections.

Add in the RS LITE's water sealing - less chance of catastrophic cut-out in a downpour - and its overall safety story is more about passive security and predictability. The Storm's is more about visibility and brute-force stopping. Both good, but different emphases.

Community Feedback

Price & Value

The RS LITE undercuts the Storm by a noticeable margin. In a world where hyper scooters easily sail past the four-grand mark, that matters. For your money you get a big 72V battery, proper hydraulics, solid build and that unique adjustable geometry. You're not buying into a boutique bargain, but the price-to-hardware ratio is actually quite respectable for this class.

The Storm New EY4 lives in the more expensive, "flagship" bracket. You're paying for a bigger, higher-grade battery, more violent performance, a modern cockpit, a removable pack and the Dualtron name with all the parts availability and resale value that implies. If you judge purely on spec-per-euro, it's not a screaming deal; if you factor in lifespan, aftermarket support and the convenience of the removable battery and bundled fast charger, the value case gets stronger.

If budget is tight but you still want a hyper scooter, the RS LITE makes more sense. If your budget is flexible and you plan to keep the scooter for many years, mod it, maybe run multiple batteries, the Storm can justify its premium.

Service & Parts Availability

In Europe, Dualtron's footprint is simply larger. There are more dealers, more independent workshops that know the platform, and a whole cottage industry of spare parts and upgrades: cartridges, dampers, RGB kits, you name it. Need a random bolt or a replacement controller in three years? The odds of finding a Dualtron-specific part quickly are high.

InMotion is no backstreet operation - their EUC heritage means they're serious about safety and engineering - and RS parts are available through established distributors. But the network is smaller, and the third-party upgrade scene is thinner. You'll get what you need, just not with the same plug-and-play abundance the Dualtron community enjoys.

If you're the type who rides hard, breaks things, and tinkers on weekends, the Storm ecosystem is more forgiving. If you just want to ride and maybe replace brake pads and tyres now and then, both are fine.

Pros & Cons Summary

Parameters Comparison

Final Verdict - Which Should You Choose?

Choosing between these two isn't about "which is best?" but "which flavour of insanity fits your life?". Both are powerful, both are heavy, both will change how you think about commuting. But they reward different priorities.

If your riding reality is mixed or bad tarmac, frequent rain, and you value comfort and stability over bragging rights, the INMOTION RS LITE makes more day-to-day sense. The hydraulic suspension and better water sealing are not marketing fluff; you feel them every single ride. It's easier to live with if you're more tourer than racer, and the lower price leaves a bit of budget for gear and a second charger.

If, on the other hand, you want that unmistakable surge of power, plan to pile on serious mileage, maybe keep a spare battery, and you like being plugged into a big user community, the DUALTRON Storm New EY4 is the more compelling package. The removable battery, stronger performance, better lights and mature Dualtron ecosystem tilt the overall experience in its favour, provided you accept the extra cost and more demanding ride.

Personally, if I had to live with one as my main big scooter, I'd lean toward the Storm New EY4: not because it's perfect - it isn't - but because it feels like a platform you grow into and keep for years, especially if you're willing to tweak and maintain it. The RS LITE is the more comfortable, sensible option; the Storm, for all its quirks, feels more complete as a long-term hyper scooter companion.

Numbers Freaks Corner

These metrics strip away emotion and look purely at how efficiently each scooter converts euros, kilograms, watts and hours into speed, range and charge performance. The RS LITE is kinder on your wallet per Wh and per kilometre, and slightly more energy-efficient per kilometre. The Storm, meanwhile, uses its extra mass and money to deliver better power-to-weight, more power per unit of top speed, lighter weight per Wh, and much faster average charging thanks to the included fast charger.

Author's Category Battle

Overall Winner Declaration

In the Numbers Freaks Corner, the INMOTION RS LITE scores 4 points against the DUALTRON Storm New EY4's 6. In the Author's Category Battle, the INMOTION RS LITE gets 16 ✅ versus 26 ✅ for DUALTRON Storm New EY4 (with a few ties sprinkled in).

Totals: INMOTION RS LITE scores 20, DUALTRON Storm New EY4 scores 32.

Based on the scoring, the DUALTRON Storm New EY4 is our overall winner. For me, the Storm New EY4 ultimately feels like the more rounded hyper scooter: it hits harder, goes further, integrates better tech, and plugs into a bigger ecosystem, so living with it long-term feels strangely easier despite its weight and attitude. The RS LITE, though, has a very strong charm of its own - it's kinder to your body, friendlier to your wallet and calmer in bad weather, which might well make it the smarter buy for many riders. If your heart wants fireworks and your life can accommodate a big, demanding machine, the Storm makes every ride feel special. If you just want to get across town quickly, comfortably and without obsessing over gear and mods, the RS LITE is the more down-to-earth companion hiding inside hyper-scooter numbers.

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.