If you are looking for a high-performance electric scooter with a top speed around 70 km/h, two models that deserve a close look are the BOYUEDA G6 and the KuKirin G4.

At first glance, the two scooters seem surprisingly similar. Both are large off-road-style electric scooters, both can reach up to 70 km/h, both use front and rear suspension, and both are designed for riders who want significantly more performance than a typical commuter e-scooter.

However, there is one major difference that changes the entire riding experience:

The BOYUEDA G6 uses dual motors, while the KuKirin G4 uses a single rear motor.

The G6 also uses a larger 52V 28Ah 21700 battery, compared with the G4's 60V 20Ah 18650 battery. That gives the G6 substantially more battery energy, despite the lower nominal voltage.

So, is the BOYUEDA G6 actually a better choice than the KuKirin G4, or is the G4 still the smarter buy for riders who want a powerful 70 km/h scooter?

Let's compare the two models in detail.

BOYUEDA G6 vs KuKirin G4: Quick Comparison

\*Prices and specifications can change. The prices above were checked on the manufacturers' product pages during the preparation of this article. BOYUEDA lists the G6 at €899, while the KuKirin G4 page lists €859.

On paper, the G4 has one advantage that immediately catches the eye: 60V versus 52V.

But voltage alone does not determine how much energy a battery stores. The more useful number for range comparison is watt-hours (Wh).

The G6 has a 52V 28Ah battery, equivalent to 1,456Wh, while the G4's 60V 20Ah battery provides 1,200Wh. That means the G6 stores about 21% more battery energy than the G4.

That difference becomes important when looking at real-world range.

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1. Dual Motor vs Single Motor: The Biggest Difference

This is the most important difference between the two scooters.

The BOYUEDA G6 is equipped with two 1600W brushless motors, one driving each wheel. The official specifications list the motor configuration as 1600W × 2, for a combined listed output of 3,200W. Peak output of up to 3,600W.

The KuKirin G4, meanwhile, uses a single 2000W rear hub motor. KuKirin lists the motor as a 2000W, 60V brushless motor with a maximum output torque of at least 38 N·m.

Why does dual motor matter?

A dual-motor scooter does more than simply add another motor.

With two motors, power can be delivered to both wheels. This can improve:

• Acceleration
• Hill climbing
• Loose-surface traction
• Launch performance
• Stability on steep terrain
• Performance with heavier riders

This is particularly useful when riding on gravel, dirt, sand, grass or steep inclines.

The G4's single rear motor is still powerful. A 2000W hub motor is more than enough for fast road riding and can deliver impressive acceleration. But its power is concentrated at the rear wheel.

The G6 takes a different approach: power is distributed between the front and rear wheels.

This is one of the main reasons the G6 is positioned as the more performance-oriented option.

Winner: BOYUEDA G6

For riders who prioritize acceleration, hill climbing and off-road traction, the dual-motor G6 has the clear advantage.

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2. Battery Comparison: 21700 vs 18650

Battery technology is another major difference between the G6 and G4.

The BOYUEDA G6 uses a 52V 28Ah 21700 lithium battery, rated at 1,456Wh. The battery is also listed with an intelligent BMS and more than 1,500 charge cycles.

The KuKirin G4 uses a 60V 20Ah 18650 lithium battery, providing 1,200Wh of energy.

21700 vs 18650: What's the difference?

The numbers refer to the physical cell format.

A typical 21700 cell is larger than an 18650 cell, allowing manufacturers to achieve higher capacity per cell while maintaining an efficient battery-pack design.

In this particular comparison, the G6 has another important advantage:

It doesn't just use 21700 cells. It also has a larger total battery capacity.

Battery energy comparison

The calculation is simple:

BOYUEDA G6: 52V × 28Ah = 1,456Wh

KuKirin G4: 60V × 20Ah = 1,200Wh

The G6 therefore has approximately 256Wh more usable battery energy on paper, or about 21% more nominal battery capacity.

This is one reason why the G6 can claim a range of 100–120 km, compared with the G4's advertised maximum range of around 75 km.

Of course, manufacturer range figures are laboratory or ideal-condition figures. Actual range depends heavily on rider weight, speed, terrain, temperature, tire pressure, wind and riding mode.

If you frequently ride at 60–70 km/h, neither scooter should be expected to achieve its maximum advertised range.

Winner: BOYUEDA G6

The G4 has a higher-voltage battery, but the G6 has substantially more total energy and uses larger-format 21700 cells.

For long-distance riding, the G6 has the stronger battery package.

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3. Range: G6 Has a Clear Advantage

Range is where the battery difference becomes visible.

BOYUEDA rates the G6 at 100–120 km, while KuKirin lists the G4 at up to 75 km.

That is a theoretical difference of up to 45 km.

However, it is important not to interpret this as "the G6 will always travel 45 km farther."

The two manufacturers may use different test conditions, and real-world range can vary considerably.

At high speed, aerodynamic drag increases rapidly. A rider travelling at 65–70 km/h will consume significantly more energy than someone riding at 25–30 km/h.

The practical takeaway is simpler:

The G6 gives you a larger energy reserve.

That can be useful even if you never reach the claimed 120 km range. You can ride farther before charging, or maintain a higher average speed without worrying about the battery as quickly.

Winner: BOYUEDA G6

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4. Top Speed: It's a Tie on Paper

Interestingly, both scooters are rated for a maximum speed of 70 km/h.

The KuKirin G4 uses a 2000W motor and lists three speed modes of 20, 40 and 70 km/h.

The BOYUEDA G6 also has a claimed maximum speed of 70 km/h and three adjustable riding gears.

So if your only question is:

"Which one is faster?"

The answer is not obvious from the published maximum-speed specification.

Both are rated at 70 km/h.

But maximum speed is only one part of performance.

Acceleration and hill climbing are different

A scooter can have the same top speed while having a very different acceleration curve.

The G6's dual-motor configuration gives it more total motor output and distributes drive between both wheels.

BOYUEDA rates the G6 for climbing angles of up to 40°, while the KuKirin G4 is listed at up to 30°.

Actual hill-climbing ability will depend on rider weight, battery charge, surface conditions and how the manufacturer measures the angle, so these numbers should not be treated as directly comparable real-world guarantees.

Nevertheless, the specifications clearly position the G6 as the more powerful climbing machine.

Winner: BOYUEDA G6 for overall performance

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5. Suspension: C-Shaped G6 vs Conventional Dual Suspension

Both scooters are equipped with front and rear suspension.

The G4 uses front and rear shock absorbers, while KuKirin highlights its suspension system as part of the scooter's all-terrain design.

The BOYUEDA G6 takes a more distinctive approach with its C-shaped suspension system.

BOYUEDA describes the G6's C-shaped suspension as using high-strength front and rear springs designed to absorb impacts and vibration from potholes, gravel and uneven surfaces.

This matters because a 70 km/h scooter needs more than just a powerful motor.

At higher speeds, suspension quality directly affects:

• Rider comfort
• Front-wheel stability
• Control over rough surfaces
• Impact absorption
• Confidence when cornering

The G6's C-shaped suspension is therefore one of its key design features rather than simply a marketing decoration.

But is C-shaped suspension automatically better?

Not necessarily.

Suspension performance depends on spring rate, damping, travel, rider weight, geometry and setup.

The important point is that both scooters have front and rear suspension, while the G6 differentiates itself with a specific C-shaped spring configuration.

Winner: BOYUEDA G6, especially for riders focused on suspension comfort

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6. Tire Size: KuKirin G4 Has the Advantage

Here the G4 fights back.

The KuKirin G4 uses large 11-inch off-road tires, while the G6 uses 10-inch, 90mm-wide dual-purpose tires.

Larger wheels generally have an advantage when rolling over:

• Potholes
• Rocks
• Gravel
• Uneven ground
• Small obstacles

The G4's 11-inch tires also give the scooter a substantial road presence.

The G6's 10-inch tires are slightly smaller but are designed as dual-purpose tires, making them suitable for both road and light off-road use.

So if your riding environment is dominated by rough trails and large obstacles, the G4's 11-inch wheel setup is worth considering.

Winner: KuKirin G4

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7. Braking System: Hydraulic vs Disc Brakes

The BOYUEDA G6 uses Logan hydraulic disc brakes.

Hydraulic brakes generally provide stronger and more consistent braking performance with less hand effort than basic mechanical cable-operated disc brakes.

The KuKirin G4 also has front and rear disc brakes and specifies 160mm discs in its product information. KuKirin lists a braking distance of around 7–10 metres in its specifications.

Because both scooters can reach 70 km/h, braking performance should be considered just as important as motor power.

At this speed, the rider needs predictable braking, especially on downhill roads or uneven surfaces.

Winner: BOYUEDA G6

The G6's hydraulic brake setup is one of its stronger hardware advantages.

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8. Weight: Surprisingly, the G6 Is Lighter

You might expect the dual-motor G6 with a larger battery to be heavier.

But the published specifications show the opposite.

The BOYUEDA G6 weighs approximately 32.7 kg, while the KuKirin G4 is listed at 35.5 ± 0.5 kg.

This is because the Boyueda G6 scooter features an all-aluminum frame structure, making the body both sturdier and lighter, whereas the KuKirin G4 uses a combination of steel and aluminum.

That means the G6 is approximately 2.8 kg lighter.

This is particularly interesting because the G6 simultaneously offers:

• Dual motors
• Larger 1,456Wh battery
• Front and rear suspension
• Hydraulic brakes
• 150kg maximum load

The lighter weight makes the G6 easier to move, load into a vehicle and store.

Neither scooter can really be considered "light" in the traditional commuter-scooter sense. At more than 30 kg, both are substantial performance scooters.

But between the two, the G6 has the advantage.

Winner: BOYUEDA G6

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9. Maximum Rider Weight

The G6 also has a higher published maximum load.

BOYUEDA G6: 150 kg

KuKirin G4: 120 kg

This gives the G6 a 30 kg higher stated payload capacity.

For heavier riders, this can be a significant consideration.

It can also provide more flexibility if the rider regularly carries a backpack or other equipment.

Winner: BOYUEDA G6

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10. Charging Time

The G6 has an advantage here as well.

BOYUEDA lists a charging time of approximately 8–9 hours for the G6.

KuKirin lists approximately 10–11 hours for the G4.

Considering that the G6 has the larger battery, the shorter stated charging time is particularly notable.

Neither scooter is a fast-charging model, however. If you regularly ride long distances, overnight charging will still be the most practical approach.

Winner: BOYUEDA G6

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11. Smart Features and Everyday Usability

The two scooters also take slightly different approaches to controls and technology.

The BOYUEDA G6 includes:

• NFC activation
• Password activation
• Bluetooth connectivity
• Smartphone app control
• Color LCD display
• USB output
• Thumb + twist-grip accelerator
• Three riding modes

The KuKirin G4 features a touchscreen display, three speed modes, key switch and a full lighting system including headlight, turn signals and taillight.

For riders who like connected features, the G6 has the more modern feature set.

For riders who prefer a simpler interface, the G4 may be perfectly adequate.

Winner: BOYUEDA G6

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12. Design and Riding Position

The G4 has a distinctive industrial design with its hollowed stem and large 11-inch tires. KuKirin emphasizes its rigid steel-and-aluminum construction and oversized 510 × 210 mm deck.

The G6 takes a somewhat different approach.

Its forged aluminum alloy frame, C-shaped suspension and relatively compact 10-inch wheel design give it a more performance-oriented appearance.

The G6 also has a 53 × 23 cm deck according to BOYUEDA's specifications, providing plenty of standing space.

In other words, the G4 looks more like a traditional large off-road scooter, while the G6 emphasizes the combination of performance, suspension and portability.

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BOYUEDA G6 vs KuKirin G4: Which One Has Better Value?

This is where the comparison becomes interesting.

At the time of checking the official product pages, the G6 was listed at approximately €899, while the G4 was listed at approximately €859.

That's only around a €40 difference.

For that relatively small price gap, the G6 offers:

• Dual motors instead of one
• 3,200W listed combined motor output
• Up to 3,600W advertised peak output
• 1,456Wh battery instead of 1,200Wh
• 21700 cells instead of 18650
• 100–120 km claimed range instead of 75 km
• C-shaped suspension
• Hydraulic brakes
• 150kg load capacity instead of 120kg
• Lower weight
• Shorter claimed charging time
• NFC and Bluetooth/app functionality

The G4 still has some meaningful advantages:

• 11-inch tires
• 60V electrical system
• Simple and proven single-motor layout
• Large deck
• Strong 2000W rear hub motor
• Lower listed price

But purely from a hardware-per-euro perspective, the G6 offers a more extensive performance package.

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Which Scooter Should You Buy?

Choose the BOYUEDA G6 If...

The G6 is the better choice if you want maximum performance and range for your money.

It makes particularly strong sense for riders who:

• Want dual-motor performance
• Ride on steep hills
• Regularly ride on gravel or uneven roads
• Want longer range
• Prefer hydraulic brakes
• Want a larger battery
• Prefer 21700 battery cells
• Need a higher rider weight capacity
• Want Bluetooth/app functionality
• Want a relatively lighter high-performance scooter
• Plan to use the scooter for longer recreational rides

The G6's biggest advantage is that it doesn't rely on one specification to win the comparison.

It combines a dual-motor drivetrain, larger battery, C-shaped suspension, hydraulic brakes and a high load rating into one package.

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Choose the KuKirin G4 If...

The G4 remains a strong choice if you prefer a large-wheel, single-motor performance scooter.

It may be a better fit if you:

• Prefer 11-inch tires
• Mostly ride on paved roads
• Don't need dual-motor traction
• Want a simpler drivetrain
• Prefer the G4's industrial design
• Want to spend slightly less
• Don't need more than 120 kg of load capacity

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BOYUEDA G6 vs KuKirin G4: Final Verdict

The KuKirin G4 and BOYUEDA G6 target a similar type of rider, but they take different approaches to performance.

The G4 is built around a powerful single 2000W rear motor, a 60V 20Ah battery and large 11-inch tires.

The G6 is designed more aggressively around overall performance: dual 1600W motors, a 52V 28Ah 21700 battery, C-shaped front and rear suspension, hydraulic brakes and a 150kg load rating.

The most important point is that the G6 does not simply have a higher motor-power number.

It has a different drivetrain architecture.

With the G4, all drive power comes from the rear wheel.

With the G6, both wheels can contribute to propulsion.

For steep climbs, loose surfaces and aggressive acceleration, this can make a noticeable difference.

The battery comparison is equally important. Although the G4 operates at a higher 60V voltage, the G6's 28Ah capacity gives it 1,456Wh versus the G4's 1,200Wh. That's roughly 21% more nominal energy.

And despite carrying the larger battery and dual-motor system, the G6's published weight is actually lower.

Overall Winner: BOYUEDA G6