Two scooters. One question: does bigger always mean better?
KuKirin has been on a roll with the G2 lineup, and the G2 Ultra and G2 Max are where things get genuinely interesting. They’re both serious machines, both priced above the base G2, and both aimed at riders who want more than just a city runabout. But they take very different approaches to “more.”
Here’s the honest breakdown.
Specs at a Glance
| Feature | G2 Ultra | G2 Max |
|---|---|---|
| Motor | Dual 800W (1600W total) | Single 1000W |
| Top Speed | 50 km/h | 55 km/h |
| Battery | 48V 18Ah | 48V 20–20.8Ah |
| Range | Up to 55 km | Up to 70–80 km |
| Climb Angle | 26° | 30° |
| Weight | ~30 kg | ~31 kg |
| Tires | 10″ tubeless off-road | 10″ pneumatic |
| Brakes | Front & rear disc | Front & rear disc |
| Seat | Optional | Included (adjustable) |
The G2 Ultra: Raw Power in a Familiar Package
The Ultra’s headline act is its dual 800W motor setup. That’s 1,600 watts of combined output, tuned for smooth, responsive launches rather than white-knuckle top speed. Think instant torque rather than a drag race.
It tops out at 50 km/h and handles inclines up to 26°, which covers most urban hills and plenty of suburban routes. The 48V 18Ah battery pushes range to 55 km, identical on paper to the base G2, but with much more headroom because the bigger battery isn’t being stretched as hard.
The standout upgrade over the base G2 is the new smart display, which riders have called genuinely innovative. It’s a step up in usability that makes real-time data, speed, battery, and mode actually glanceable while moving.
One real-world note: that the Kukirin G2 Ultra dual-motor setup demands a full 9–10 hours to charge from empty. Fine if you plug in overnight, less ideal if your schedule is irregular.
Best for: Riders who want aggressive, confident acceleration and don’t need marathon range. Commuters on hilly routes, weekend explorers, and anyone upgrading from a single-motor scooter who wants to feel the difference immediately.
The G2 Max: The Long-Haul Workhorse
The G2 Max plays a different game entirely. Its single 1000W motor actually pushes a higher top speed (55 km/h) and steeper climb capability (30°) than the Ultra, which sounds counterintuitive, but this motor is tuned specifically for sustained power output, not dual-motor snap.
The real story, though, is the battery. A 48V 20.8Ah pack is legitimately large, and in real-world eco/moderate riding on flat terrain, riders report getting close to the claimed 70–80 km. That’s not marketing math; it’s a meaningful shift in how you think about your week. Three to four days of 15–20 km commutes per charge becomes genuinely realistic.
The Kukirin G2 Max also comes with a removable, adjustable leather seat as standard. For longer rides, that’s not a luxury; it’s the difference between arriving refreshed and arriving stiff. The four-arm shock absorption system adds to that comfort story, handling cobblestones and rougher roads more confidently than the base G2.
It’s a heavier, slightly bulkier machine than the Ultra, and it shows in handling. Less nimble in tight city traffic, but planted and stable on open roads.
Best for: Riders with long daily commutes, suburban routes, or anyone who hates seeing that battery icon dip below 30%. Also excellent for riders who want to sit comfortably on longer journeys.
Where They Diverge: The Real Differences
Power delivery: The G2 Ultra’s dual motors give it a stronger, more immediate punch off the line. The G2 Max’s single motor is no slouch, but it prioritizes sustained efficiency over initial surge.
Range vs. performance trade-off: If range anxiety is your primary concern, the G2 Max wins convincingly. If you prioritize hill attack and punchy acceleration over long-haul distance, the Ultra is your machine.
Comfort for longer rides: The G2 Max’s standard seat and superior shock absorption tilt it heavily toward comfort. The Ultra, without a seat, is better suited to shorter, more active riding.
Charging reality: Both are slow chargers (the Ultra slightly more so). Neither is set up for fast charging, so overnight is the strategy for both.
Who Should Buy Which?
Get the G2 Ultra if:
- Your commute involves real hills and you want to attack them, not coast over them
- You’re upgrading from a single-motor scooter and want to feel the difference
- Range isn’t your biggest concern (55 km is plenty for most urban riders)
- You want the tech-forward display experience
Get the G2 Max if:
- Your daily distance is 20 km+ each way, or you ride multiple days before charging
- Comfort on longer rides matters to you (the seat is a genuine game-changer)
- You’re riding on varied terrain and want a stable, planted feel
- You want the highest top speed and climb angle in the G2 lineup.
The Bottom Line
Neither scooter is the “safe choice”. Both punch well above their price class. The G2 Ultra is the more exciting ride, especially for city riders who want immediate, responsive power and a smarter display. The G2 Max is the more practical ride, built for people who need real-world range and genuine long-ride comfort.
Put simply: the Ultra is a performance upgrade. The G2 Max is a lifestyle upgrade. Know which one your daily routine is asking for, and you won’t be disappointed either way.