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2021Kymco AK 550

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The 2021 Kymco AK 550 is a maxi-scooter designed for riders seeking practical commuting with elevated performance. Its 550cc twin-engine delivers 53 horsepower and 55.1 Nm of torque, offering car-like comfort and highway-capable speed. Best suited for urban professionals and long-distance commuters valuing convenience, weather protection, and automatic transmission simplicity.

Capacity
550.0 ccm
Engine
Parallel Twin, four-stroke
Gearbox
Not on record
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Dry weight
210.0 kg
Seat height
785 mm
Power
53.0 HP (39.5 kW) @ 7500 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2021 Kymco AK 550

vs the 2020
Spec20202021
Power 52.7 HP (38.5 kW) @ 7500 RPM 53.0 HP (39.5 kW) @ 7500 RPM
Torque 55.6 Nm (5.7 kgf-m or 41.0 ft.lbs) @ 5500 RPM 55.1 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500 RPM
Dry weight — 210.0 kg (463.0 pounds)
Other years 2020 2021 2022

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 69Agility 61Comfort 78Off-road 5Touring 75Road manners 82
Off-road & trail5%
Cornering68%
City riding75%
Daily riding82%
Touring78%
Two-up75%
Track35%
Best for
Built as a maxi-scooter that blends effortless commuting with genuine long-distance capability, offering car-like performance without the complexity of a manual gearbox.
Built for
A premium, sport-oriented maxi-scooter character that rewards confident throttle use with strong midrange torque and stable high-speed manners.
Not ideal for
Not a good fit for off-road exploration or for riders wanting a lightweight, flickable machine for tight city alleys.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 785mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Kymco AK 550, with a moderate knee angle of around 110 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and running costs

Worked out in your browser - nothing is sent to us

Based on the published US (EPA-style) fuel economy estimate and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine
Capacity
550.0 ccm
Power
53.0 HP (39.5 kW) @ 7500 RPM
CO2 Emissions
108 CO2 g/km
EPA Est. Fuel Consumption
4.60 L/100km (51.1 US mpg)
EPA CO Emissions
2.3 CO g/km
Torque
55.1 Nm (5.6 kgf-m) @ 5500 RPM
Engine type
Parallel Twin, four-stroke
Power/weight ratio
0.2524 HP/kg (dry)
Bore x stroke
69.0 x 73.6 mm
Compression
11.0:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
Electric
Aspiration
Naturally aspirated
Valves per cylinder
4
Spark plugs
NGK: CR7E
Transmission
Transmission type
Automatic
Dimensions & weight
Wheelbase
1580 mm
Overall length
2165 mm
Overall width
795 mm
Overall height
1400 mm
Seat height
785 mm
Dry weight
210.0 kg
Wet weight
226.0 kg
Fuel capacity
15.00 litres
Oil capacity
3.00 litres
Chassis & suspension
Frame
Underbone
Front suspension
Upside down telescopic fork 41
Rear suspension
Horizontal Trailing Arm Rear
Front wheel travel
120 mm
Rear wheel travel
48 mm
Brakes & wheels
Front brakes
Double disc
Front brakes diameter
270 mm
Rear brakes
Single disc
Front tyre
120/70-R15
Rear tyre
160/60-R15
Tire pressure front
36 PSI (2.5 Bar or 250 kPa)
Tire pressure rear
39 PSI (2.7 Bar or 270 kPa)
Other
Color options
Black, grey
Warranty
24

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 202020212022
Capacity 550 cc 550 cc 550 cc
Dry weight — 210 kg 210 kg
Seat height 785 mm 785 mm 785 mm
Fuel capacity 15 L 15 L 15 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2021 Kymco AK 550 motorcycle is a powerful and stylish option for riders looking for a high-performance scooter. With a 550cc engine, this bike offers impressive speed and acceleration, making it a great choice for both city commuting and long-distance rides. The sleek design and comfortable seating make it a pleasure to ride, while the advanced technology, including a 5-inch digital display and keyless ignition, adds a modern touch to this classic machine.

Overall, the 2021 Kymco AK 550 motorcycle is a top-tier option for riders seeking a combination of power, style, and technology. With its impressive engine and advanced features, this bike is sure to provide a thrilling riding experience for enthusiasts. Whether you're navigating city streets or cruising along the open road, the AK 550 delivers on performance and comfort, making it a standout choice in the scooter market.

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Common questions

What is the engine size of the Kymco AK 550?

The 2021 Kymco AK 550 has a Capacity of 550.0 ccm (33.56 cubic inches).

What engine power does the Kymco AK 550 have?

The 2021 Kymco AK 550 has a Power of 53.0 HP (39.5 kW) @ 7500 RPM.

What is the torque of the Kymco AK 550?

The 2021 Kymco AK 550 has a Torque of 55.1 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500 RPM.

How much does the Kymco AK 550 weigh?

The 2021 Kymco AK 550 has a Dry weight of 210.0 kg (463.0 pounds).

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