Dualtron Storm New EY4 vs Kaabo Wolf King GTR Max - Two Hyper-Scooters Walk Into a Bar...

Fast Answer for Busy Riders ⚡ (TL;DR)

The Kaabo Wolf King GTR Max is the more complete package for most riders: smoother power delivery, plusher suspension, bigger real-world range potential, and a lower price make it the more compelling - if monstrously heavy - "vehicle replacement" scooter. The Dualtron Storm New EY4 fights back with a removable battery that's easier to handle, a slightly more compact chassis, and the familiar Dualtron ecosystem and tuning culture. If you're an apartment dweller who absolutely needs a removable pack and prefers a stiffer, more "sporty" feel, the Storm can still make sense.

Everyone else who wants brutal speed with actual comfort and refinement will feel better served on the Wolf. Keep reading - the devil with these two isn't in the spec sheet, it's in how they behave once you're hanging on at full throttle.

Hyper-scooters used to be niche toys for people who thought 50 km/h while standing up was a sensible idea. Today, models like the Dualtron Storm New EY4 and Kaabo Wolf King GTR Max are edging into motorcycle territory: removable batteries, serious suspension, proper brakes, and enough power to make bad decisions at impressive velocities.

On paper, they live in the same universe: huge batteries, terrifying dual motors, premium components, and price tags that make entry-level commuters look like pocket money. In reality, their personalities diverge pretty sharply. The Storm New EY4 is a heavy, stiff, industrial bruiser with a clever removable battery that actually works for real-world living. The Wolf King GTR Max is a big, loud, dual-stem bulldozer that happens to ride with surprising finesse.

If you've narrowed your hunt to these two, you're not choosing between "good" and "bad" - you're choosing which compromises you can live with. Let's dig in.

Who Are These For, and Why Compare Them?

Both scooters live at the top end of the 72V, dual-motor, "I no longer need a car" category. They cost several thousand euros, weigh more than many e-bikes, and are built for riders who think 20 km commutes are a warm-up, not a stretch.

The Dualtron Storm New EY4 slots into the classic hyper-scooter mould: huge removable battery, big peak power numbers, and the familiar Minimotors feel - lots of punch, lots of stiffness, and a cockpit bristling with lights and RGB accents. It's the scooter for riders graduating from a smaller Dualtron or similar and wanting more power without reinventing their riding style.

The Kaabo Wolf King GTR Max is aimed squarely at people who like their toys overbuilt. Dual stems, motorcycle-style front suspension, massive 12-inch self-healing tyres, traction control, and a battery big enough that you could plausibly "forget" to charge for a day or two. It's a scooter you treat more like a small motorbike than a big toy.

You compare these two because they're some of the few hyper-scooters that combine: removable packs, genuine long-range capability, and enough speed that local law becomes more of a guideline than a rule. Same class, different flavour.

Design & Build Quality

In the flesh, the Storm New EY4 looks like a refined evolution of the standard Dualtron formula: single thick stem, angular deck, beefy swingarms, and a rear footrest that doubles as a controller housing. The aluminium chassis feels dense and confidence-inspiring - classic Minimotors "built like a brick" energy. The new EY4 cockpit finally drags Dualtron into the current decade, with a big, waterproof display and a cleaner control layout than the old EY3 era.

Fit and finish are generally solid, but you can still find the odd plastic trim piece or cable routing choice that feels more "enthusiast hardware" than luxury. You do occasionally hear minor creaks from the folding assembly if you don't stay on top of bolt checks, and the rubber cartridge suspension casings don't scream premium when you press on them - they scream "function first".

Hop over to the Wolf King GTR Max and everything is dialled a notch more... theatrical. The tubular exoskeleton frame, dual stems, and long, muscular deck make the Dualtron look almost reserved. The welding, paint, and machined parts feel robust, and the scooter gives off a distinctly "motorsport" vibe rather than gadget vibes. The removable battery hatch is well-integrated, and the pack itself feels like a standalone product rather than an afterthought.

Overall, the Kaabo looks and feels a bit more modern and cohesive. The Dualtron is sturdy, but the Wolf's dual-stem chassis and motorcycle-style fork give it the edge in perceived robustness once you start throwing it at bad roads.

Ride Comfort & Handling

This is where the personalities really diverge.

The Storm's rubber cartridge suspension is a known quantity. It's firm, controlled, and prioritises stability over plushness. On decent tarmac, it feels precise and confidence-inspiring, almost like a stiff sports car - you know exactly what the wheels are doing. After a few kilometres of broken city cobbles though, your knees and ankles will start politely asking what they did to deserve this. You can swap cartridges to change stiffness, but even on the softer side, it's never what you'd call "cushy".

Steering on the Storm is typical Dualtron: once up to speed, it's stable enough, especially with the wider bars, but at medium speeds it can still feel a touch nervous if you're not centred. The single stem is rigid enough, but you're aware you're riding a tall, heavy slab with big wheels and a lot of mass above the axle line. Get your stance wrong and the scooter reminds you who's in charge.

The Wolf King GTR Max, by contrast, feels like it was designed by someone who has actually ridden for more than twenty minutes at a time. The motorcycle-style front suspension has noticeably more travel and better damping. It soaks up potholes, roots and joints with a satisfying, controlled stroke rather than a sharp slap. The rear spring-hydraulic shock, being adjustable, lets you genuinely tune the feel - you can make it sofa-soft for slower city work or tighten things for faster, sportier runs.

Handling-wise, the dual stems and wide 12-inch tyres make the Wolf feel like it's on rails. It tracks straight even when the road surface is trying its best to unsettle you. The flip side is a larger turning radius; tight U-turns and weaving through tight pedestrian mazes are more work. But once you're above jogging pace, the Wolf feels more planted and less twitchy than the Storm, especially on rough surfaces.

If your daily reality includes bad asphalt, cobbles, potholes, or any kind of off-road, the Wolf is notably kinder to your body. The Storm is fine if your roads are decent and you like that firmer, more connected feel, but over time you do start to wish it had a bit more give.

Performance

Both scooters are deep into the "this is probably too fast for a standing plank" zone, so you're not going to feel underwhelmed on either. But how they deliver that performance is very different.

The Storm New EY4 is classic high-voltage Dualtron: the power comes on like a slap. Even with settings dialled back, the throttle has that square-wave twitch that makes low-speed manoeuvring feel more like defusing a bomb with your thumb. Once you're rolling, it pulls brutally hard and just keeps shoving. Overtaking cars, blasting up long hills, and merging into fast traffic are all done with contemptuous ease. It feels like a drag racer that someone reluctantly turned into a scooter.

The downside is finesse. You can absolutely tune the EY4 controller to soften initial response, but it never becomes truly silky. In tight car parks and slow-moving crowds, you'll constantly feather the throttle to avoid lurches. At higher speeds, the chassis copes well, but you're aware that you're riding a slightly old-school powertrain wrapped in a modern shell.

The Wolf King GTR Max takes a more civilised approach to insanity. The sine wave controller gives it a smooth, linear power band that feels almost gentle right up until you realise you've gone from walking pace to city-traffic speed in what feels like two heartbeats. Traction control steps in when surfaces are sketchy; where the Storm will happily spin up a wheel on loose gravel and ask if you enjoyed the surprise, the Wolf quietly trims power and lets you get on with your day.

At full send, the Wolf feels quicker and more composed. There's more peak headroom, and the chassis keeps up. Long, steep climbs barely dent its enthusiasm. Crucially, when you back off and just want to trundle, it will happily roll around with the calm of a much smaller scooter - something the Storm never fully manages.

Braking is strong on both, with big hydraulic systems and motor assistance, but the Wolf's overall stability when hard on the anchors feels superior. On the Storm, a panic stop from high speed will have you bracing and shifting weight carefully; on the Wolf, the dual stems and bigger contact patches give you a bit more margin for error.

Battery & Range

Both scooters carry batteries large enough to trigger awkward conversations about fire codes, but again, the details matter.

The Storm's removable pack is a sizeable 72V unit using branded cells, housed entirely in the deck. In ideal "brochure" conditions, the claimed range is enormous; in reality, riding like a normal human who occasionally enjoys being alive, you're looking at a healthy chunk of distance - easily enough for long commutes or big weekend group rides. Ride hard and fast, and you'll still pull off a decent round-trip without sweating every bar on the gauge.

The Wolf King GTR Max simply ups the ante with a larger pack and a bit more efficiency at sensible cruising speeds. That extra capacity shows up most clearly if you're not constantly in race mode - cruising at realistic traffic speeds, the Wolf will stretch a charge further than the Storm. Ride both like a maniac and they compress towards similar "fun range", but the Wolf still tends to get you a bit further before limping home in eco.

Charging favours the Dualtron slightly: with the included fast charger, you can realistically go from near-empty to full in a working day or overnight without much planning. The Wolf, with its bigger battery, needs more patience unless you invest in dual chargers; then it becomes manageable, but not exactly quick.

Range anxiety on either is mostly a mental thing. If your typical day is under the length of a small road trip, both will handle it. If you're that rider who decides to "just keep going" every time you see a new road, the Wolf's bigger tank gives you a bit more freedom before you're hunting for sockets.

Portability & Practicality

Let's be blunt: neither of these scooters is "portable" in the normal sense. You don't carry them; you wrestle them. But there are degrees of suffering.

The Storm tips the scales at a bit over 55 kg. That's firmly in the "drag, don't lift" category, but it's just about manageable to hoik the front end up a step or into a hatchback if you're relatively fit. The single-stem layout and slightly smaller overall footprint make it less of a nightmare to store in a hallway or tight garage. Folded, it's still a big lump, but it doesn't visually dominate a room quite as much as the Wolf.

The removable battery is the Storm's one big practical ace. You can leave the grubby chassis in a shed, bike room or locked courtyard and just bring the battery upstairs. It's still heavy, but at least you're dealing with something shaped like a big briefcase rather than a fallen streetlamp.

The Wolf King GTR Max... is another story. At around 67 kg, it lives in the same weight class as an actual person. Moving it without power is an event. Lift it fully more than once and you'll be mentally pricing gym memberships. The dual stems don't telescope, so folded length is significant, and manoeuvring it in small lifts or tight corridors quickly becomes a logic puzzle.

It does share the removable battery trick, which helps with charging, but you absolutely need a sensible ground-level parking solution for the chassis. Think motorcycle parking, not "fold it under your desk". If your daily pattern involves stairs or public transport, the Wolf is a non-starter. The Storm is only marginally better in that regard - "less bad" rather than "good" - but it's the one that'll hurt you slightly less.

Safety

At the speeds these things can do, safety is less about having features on a spec sheet and more about whether you feel in control when everything kicks off.

Both scooters come with strong hydraulic brakes and motor braking, which is essential when you're effectively riding a standing missile. Modulation is good on each; the Wolf's system feels a bit more consistent lever-to-wheel, but the Storm's NUTT calipers and regen combo still haul you down hard enough to make your eyes reconsider their mounting points.

Lighting is solid on both, and for once you don't absolutely have to strap aftermarket torches to the bars just to see further than your front wheel. The Storm's dual headlights are bright and fairly well aimed; the Wolf's iconic "bug-eye" units throw a punchy beam down the road and are genuinely among the best stock lights out there. In urban night riding, both make you visible and let you read the tarmac with confidence.

Tires and chassis stability tilt the scales towards the Wolf. Those taller, wider self-healing tyres and the dual-stem front end offer a stability envelope that's simply more forgiving when you're pushing. Hit a mid-corner bump at speed on the Storm and you feel it ripple through the bars more; on the Wolf, the front takes the hit and gets on with life. Add traction control into the mix and the Kaabo gives you an extra electronic safety net on loose or wet surfaces that the Storm simply doesn't match.

The Storm isn't unsafe - far from it - but it still feels like a very powerful, fairly stiff scooter you have to manage actively. The Wolf feels more like a shrunken motorcycle that's been designed from the outset to go fast on less-than-perfect roads.

Community Feedback

Price & Value

Both sit in what most sane people would call "expensive" territory. The Storm New EY4 lands in the upper three-thousands in many European markets, squarely in flagship Dualtron country. For that, you get the brand halo, the removable battery, and a feature-complete scooter with decent lights and a fast charger included. You also get the lingering sense that you're paying a bit for the badge; in terms of comfort and refinement, others have moved the game on.

The Wolf King GTR Max, somewhat surprisingly, often undercuts the Dualtron despite having a larger battery, more advanced controller, bigger tyres, and more sophisticated suspension. Component for component, it tends to look like the better deal, especially if you value actual ride quality over headline watt figures. Running costs are similar - tyres, pads, and the usual consumables cost real money, but you're not in motorcycle-service territory.

Neither scooter is a bargain, but if you're strictly looking at what your money buys in real-world usability, the Kaabo makes a stronger case.

Service & Parts Availability

Dualtron enjoys one of the broadest aftermarket and spares ecosystems in the scooter world. Frames, controllers, brake parts, custom stems, lighting upgrades - if it bolts to a Storm, someone on the internet is selling a shinier version of it. That depth of community knowledge also means most issues have already been diagnosed and documented by someone, somewhere.

Kaabo isn't far behind. The Wolf series sells in large volumes, and parts like swingarms, tyres, brake components and even replacement batteries are increasingly easy to source through European distributors and third-party shops. Electronics are a bit more proprietary on the GTR Max, but you're not buying into an obscure brand with limited support.

In Europe specifically, which one is easier to live with will depend heavily on your local dealer. In general, Dualtron still has a slight edge in long-term parts availability, simply because there are more of them out there and they've been around longer. Kaabo has caught up quickly though, and I wouldn't pick the Storm purely on parts unless you live somewhere especially Dualtron-heavy.

Pros & Cons Summary

Parameters Comparison

Final Verdict - Which Should You Choose?

Both of these scooters are absurd, in the best possible way. They're fast enough to make cars look lazy, heavy enough to require a plan for parking, and powerful enough that you absolutely need gear and respect to ride them. But they're not equals.

The Dualtron Storm New EY4 is, fundamentally, a refined take on the older Dualtron formula. If you love that stiff, mechanical feel; if you want a removable battery but can't live with a truly gigantic chassis; and if you care about tapping into the deep Dualtron mod scene, it will serve you well. Treat it like a long-range, high-speed city bruiser and it makes a certain kind of sense, especially if you live somewhere with tolerable road surfaces.

The Kaabo Wolf King GTR Max, though, feels like the more mature interpretation of what a hyper-scooter should be in 2025. The smoother sine-wave power, genuinely plush adjustable suspension, bigger tyres, traction control, and larger battery turn it from a "fast scooter" into something approaching a small electric motorcycle in usability. Yes, it's a pain to move around off the throttle, but once you're rolling, it simply rides better, goes further, and inspires more confidence.

If I had to live with one as my main high-power scooter, I'd pick the Wolf King GTR Max. It's the one that makes long days in the saddle feel less like a test of endurance and more like what they should be: big, stupid, glorious fun with a decent dose of comfort.

Numbers Freaks Corner

These metrics let you compare how efficiently each scooter turns money, mass, and energy into speed and range. Price per Wh and per km/h show raw value; weight-related metrics hint at how much "scooter" you're schlepping for the performance you get. Wh per km reflects energy efficiency, while power-to-speed and weight-to-power ratios highlight how aggressively each machine can deploy its wattage. Average 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 4 points against the KAABO Wolf King GTR Max's 6. In the Author's Category Battle, the DUALTRON Storm New EY4 gets 18 ✅ versus 28 ✅ for KAABO Wolf King GTR Max (with a few ties sprinkled in).

Totals: DUALTRON Storm New EY4 scores 22, KAABO Wolf King GTR Max scores 34.

Based on the scoring, the KAABO Wolf King GTR Max is our overall winner. Between these two, the Wolf King GTR Max simply feels like the more sorted machine to live with, especially if you ride far and fast on imperfect roads. It delivers the same "what am I doing?" levels of performance, but with a calmer chassis, a kinder suspension, and a wallet hit that's easier to justify for what you get. The Storm New EY4 still has its charms - the Dualtron heritage, the slightly saner size, the fast charging - but once you've spent real time on both, the Kaabo is the one you're more likely to choose when you actually want to enjoy the ride rather than just survive the speed.

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.