Kukirin has just unveiled its most advanced off-road scooter yet: the G4 Ultra. Building on the success of the G4, this new flagship model takes everything riders loved about the original and cranks it up—more power, more range, faster charging, and a redesigned cockpit.
If you're in the market for a high-performance electric scooter that can handle everything from city streets to rugged trails, the Kukirin G4 Ultra deserves your attention.
In this review, we'll break down everything you need to know: performance, battery, design, safety, and who this scooter is really for.
What's New in the G4 Ultra?
The G4 Ultra isn't just a minor refresh—it's a comprehensive upgrade over the standard Kukirin G4. Here's what's changed:
| Feature | Kukirin G4 | Kukirin G4 Ultra |
|---|---|---|
| Motor | Single 2000W | Dual 1000W × 2 |
| Battery | 60V 20Ah | 60V 20Ah |
| Top Speed | 70 km/h | 70 km/h |
| Max Range | 75 km | 80 km |
| Charging Time | 10-11 hours | 5-6 hours (5A fast charging) |
| Brakes | Front & rear disc + e-brake | Front & rear 160mm disc + power-cut brakes |
| Tires | 11-inch off-road | 11-inch tubeless |
| Display | Touchscreen | 294×42mm integrated display |
| Weight | 35.5 kg | 43.4 kg |
| Max Load | 120 kg | 120 kg |
| Waterproofing | IP54 | IPX4 |
The headline upgrades? Dual motors for better traction, faster charging for less downtime, and a redesigned stem with a larger display. This is a serious machine for serious riders.
Performance – Dual 1000W Motors Deliver
At the heart of the G4 Ultra is its dual 1000W motor system (2000W combined). Unlike the single-motor G4, this all-wheel-drive setup delivers:
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Stronger launch response: Instant acceleration from a standstill.
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Confident mid-range acceleration: Power on tap for overtaking and climbing.
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Improved climbing capability: Handles up to 30° inclines with ease.
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Greater traction under load: Both wheels pull, so you stay stable on loose surfaces.
Top speed remains 70 km/h (in RACE mode), with three speed levels available:
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ECO: 20 km/h
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SPORT: 40 km/h
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RACE: 70 km/h
Whether you're commuting through the city or tackling a steep trail, the G4 Ultra delivers the power you need.
Battery & Range – Up to 80km on a Single Charge
The G4 Ultra features a 60V 20Ah battery (approximately 1200Wh), providing impressive range across different riding modes:
| Mode | Range |
|---|---|
| ECO | Up to 80 km |
| SPORT | Up to 50 km |
| RACE | Up to 35 km |
This makes the G4 Ultra ideal for long commutes, weekend adventures, or simply exploring without range anxiety.
5A Fast Charging – A Game-Changer
One of the biggest improvements over the G4 is the 5A fast charging system. The G4 Ultra charges in just 5-6 hours (compared to 10-11 hours for the G4). That means less waiting and more riding—perfect for riders who use their scooter daily.
Ride Comfort & Stability
The G4 Ultra is built for stability at speed and comfort on rough terrain.
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11-inch tubeless tires: Larger tires roll over obstacles more easily and provide a stable, planted feel.
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Front and rear spring suspension: Absorbs bumps and vibrations, keeping you comfortable on uneven surfaces.
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Wide deck: Provides ample standing space for a natural, relaxed riding posture.
Whether you're on smooth pavement or gravel trails, the G4 Ultra inspires confidence.
Safety Features
Safety is a priority on the G4 Ultra:
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Front & rear 160mm disc brakes: Provide strong, predictable stopping power.
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Power-cut brakes: Cut motor power when braking for faster, safer stops.
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IPX4 waterproofing: Protects against splashes from any direction—ideal for light rain.
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LED lighting system: Ensures visibility in low-light conditions.
These features combine to make the G4 Ultra one of the safest high-performance scooters available.
Design & Build Quality
The G4 Ultra features several design improvements:
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New stem design: A sharper, more aggressive stance that looks as fast as it rides.
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294×42mm integrated display: Clear, easy-to-read display showing speed, battery, mode, and more.
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One-click folding: Collapses quickly for storage or transport.
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Durable construction: Built to handle the rigors of off-road riding.
At 43.4kg, the G4 Ultra is heavier than the standard G4—but that weight translates to stability and durability.
Who Is the G4 Ultra For?
The G4 Ultra is designed for riders who demand the best:
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Off-road enthusiasts: Dual motors, 11-inch tires, and suspension make it a trail-ready machine.
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Long-distance commuters: 80km range in ECO mode covers even the longest commutes.
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Performance seekers: 70 km/h top speed and instant acceleration deliver a thrilling ride.
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Riders who value fast charging: 5-6 hours means less downtime and more ride time.
If you want a scooter that can do it all—and do it well—the G4 Ultra is for you.
G4 Ultra vs G4 – Which Should You Choose?
| Feature | Kukirin G4 | Kukirin G4 Ultra |
|---|---|---|
| Motor | Single 2000W | Dual 1000W × 2 |
| Traction | Good | Excellent (AWD) |
| Range | 75 km | 80 km |
| Charging | 10-11 hours | 5-6 hours |
| Brakes | Disc + e-brake | 160mm disc + power-cut |
| Display | Touchscreen | 294×42mm integrated |
| Weight | 35.5 kg | 43.4 kg |
| Price | Lower | Higher |
Choose the G4 if you want a proven, capable off-road scooter at a lower price.
Choose the G4 Ultra if you want maximum performance, faster charging, and the latest technology.
FAQ – Your Kukirin G4 Ultra Questions Answered
1. How fast does the Kukirin G4 Ultra go?
The G4 Ultra reaches a top speed of 70 km/h in RACE mode, with lower speed modes (20 km/h and 40 km/h) available.
2. What is the range of the G4 Ultra?
Range varies by mode: 80 km in ECO, 50 km in SPORT, and 35 km in RACE.
3. How long does it take to charge?
Thanks to the 5A fast charger, the G4 Ultra charges in approximately 5-6 hours.
4. Is the G4 Ultra good for off-road riding?
Yes. With dual motors, 11-inch tubeless tires, and front/rear suspension, it's built for off-road adventures.
5. What's the difference between the G4 and G4 Ultra?
The G4 Ultra has dual motors (vs single), faster charging (5-6h vs 10-11h), slightly more range (80km vs 75km), and a redesigned stem with a larger display.
6. Is the G4 Ultra legal in Europe?
The G4 Ultra exceeds the 250W / 25 km/h limits for legal e-bikes in most EU countries. It is intended for private land use. Always check your local regulations.
7. What warranty does it come with?
All Kukirin scooters purchased through Kukirin Global include a 1-year warranty and lifetime customer support.
Conclusion – The Ultimate Off-Road E-Scooter?
The Kukirin G4 Ultra is a significant upgrade over the already-impressive G4. With dual motors, 80km range, 5-6 hour fast charging, and a host of design improvements, it's one of the most capable off-road e-scooters on the market.
If you're looking for a scooter that can handle everything from daily commutes to weekend trail adventures—and you want the latest technology—the G4 Ultra is an excellent choice.
Ready to experience the G4 Ultra?
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