Kingsong S18 PRO PLUS 50S electric unicycle

Kingsong S18 PRO PLUS 50S electric unicycle

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We have special Inmotion prices for registered customers ;-)
€1,889.00

EUR 1561.16 tax excl.

KingSong S18 PRO PLUS 50S — full-suspension electric unicycle with Samsung 50S cells, a 2200W motor (5000W peak) and 1110Wh battery for a real-world ~45-50 km/h and up to 100 km of range.

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KingSong S18 PRO PLUS 50S Electric Unicycle

The S18 PRO PLUS 50S is the definitive evolution of KingSong's iconic full-suspension wheel. By swapping in Samsung 50S 21700 high-discharge cells, KingSong solved the one limitation of the standard S18: power delivery in the harshest conditions and at low charge. The result is a 72V machine that stays punchy, responsive, and confidence-inspiring whether you're attacking a steep climb or finishing a long ride on a near-empty battery.

Power that never flinches

A 2200W motor with a 5000W peak drives a real-world top speed of ~45-50 km/h (50 km/h free-spin) and tackles gradients up to roughly 40°. The 1110Wh battery delivers a manufacturer-rated range of up to 100 km, with a realistic 60-80 km in mixed riding. Recharge in about 6 hours on the standard 2A charger, or drop that dramatically with the optional 10A fast charger.

Suspension built for real terrain

The S18's signature X-shaped linkage pairs with a DNM AOY 36RC air shock offering 100mm of fully adjustable travel. Tune preload and damping to your weight and riding style, then let the 18 x 3.0 inch pneumatic tire soak up everything the city or the trail throws at you.

Smart, road-ready, weatherproof

  • 1600 lumen headlight with automatic high/low beam, plus a rear brake light with integrated turn signals
  • Matrix display showing speed and power at a glance
  • Bluetooth connectivity with the KingSong app for telemetry and tuning
  • IP54 water and dust resistance for confident all-weather commuting
  • Pedal height adjustable from 110-210mm to dial in your stance

At just 25kg with a 120kg maximum load and an 18 inch wheel, the S18 PRO PLUS 50S strikes the rare balance of nimble handling and serious capability. For experienced riders who refuse to compromise, this is the high-end unicycle to own.

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Data sheet

Max. Speed (km/h)
50
Motor Power (W)
2200
Estimated range (km)
70
Wheel diametr (Inch)
18
Charging voltage (Volts)
84
Charging time (hours)
5
Weight (Kg)
25
Max. carrying capacity (Kg)
120
Telescopic handle
Yes

No customer reviews for the moment.

§ 01 / Philosophy

Samsung 50S in the S-platform.
The cell-chemistry refresh.

Pro+ generation
S18 platform
§ battery
1110
Wh · 84 V · Samsung 50S

High-discharge cells replace original LG and intermediate Molicel. UL 2272 certified pack.

§ peak power
5000
W · 2200 W rated

Sized for 50 km/h sustained cruise on the 18″ wheel with capacity for harder acceleration when needed.

§ range
70
km · real-world

Conservative real-world figure used by OneRide. The lab maximum from kingsong.com is higher.

The latest revision of the S18 platform.

The S18 PRO+ is the cell-chemistry refresh of the S-platform. The chassis stays familiar — 18″ tire, variable air suspension, telescopic trolley, ~25 kg curb weight — but the Samsung INR21700-50S cells deliver more current under hard acceleration and hold voltage better when the pack is below 30% state of charge.

Three named generations live under the S18 family. This is the latest, and the one OneRide stocks.

Charging takes around 5 hours with the 84 V / 2.5 A standard charger. UL 2272 certified pack — meaningful for indoor charging permission and shipping insurance routing. 25 kg curb weight, 120 kg max rider load, 35° max grade.

§ 02 / Systems

Four choices that define the S18 PRO+.

KingSong S-platform
Pro+ revision · 2025
01

Samsung 50S cells

High-discharge variant in Samsung's 21700 line. Less voltage sag at low state of charge.

02

Air suspension

Variable air suspension with adjustable travel. The S-platform comfort signature since 2019.

03

2200 W / 5000 W peak

Calibrated for 50 km/h sustained cruise on the 18″ wheel. Headroom for steep climbs.

04

UL 2272 certified

Pack-level certification — meaningful for indoor charging permission and insurance.

§ 03 / EnergyBattery

1110 Wh · 84 V.

Samsung 50S · UL-certified

The 50S is the high-discharge variant in Samsung's 21700 line. Practical effect: smoother acceleration when the battery is mostly empty, less alarm-cutoff drama on long climbs.

Capacity
1110 Wh
Voltage
84 V
Cells
Samsung INR21700-50S
Charge
~5 h @ 2.5 A
§ 04 / DriveMotor

2200 W rated. 5000 W peak.

50 km/h · 35° grade

The motor and its 5000 W peak handle the spike on steep climbs. The air suspension keeps the contact patch loaded.

Rated
2200 W
Peak
5000 W
Top speed
50 km/h
Max grade
35°
§ 05 / ChassisBuild & sealing

25 kg · 18″ · UL 2272.

Air suspension · telescopic trolley

KingSong does not publish a single IP class for the S18 PRO+. Treat the wheel as weather-resistant within normal urban use. UL 2272 certification on the pack is the relevant credential.

Weight
25 kg
Max load
120 kg
Tire
18″
Certification
UL 2272
§ 06 / Who rides it

The S18 PRO+ rewards riders who value the S-platform comfort tradeoff.

A

Returning S-platform riders

Returning S-platform riders who want the latest cell chemistry without changing chassis. Same feel, smoother delivery at low state of charge.

B

The air-suspension rider

Riders who value air suspension and the 18″ comfort tradeoff over off-road specs.

C

The indoor-charge rider

Riders charging indoors who need UL 2272 certification for building rules.

×

Off-road riders

The 18″ street suspension is not a trail tire.

×

Spec-sheet shoppers

The V13 or F18 deliver bigger numbers on paper.

×

Suspension dial-in averse

Initial pressure setup matters with air suspension.

§ 07 / Technical reference

Every number that matters.

KingSong / S-platform
Rev. S18 PRO+ · 2025
Battery & energy
Capacity1110 Wh · 84 V · Samsung INR21700-50S
Charge time~5 h with 84 V / 2.5 A standard charger
CertificationUL 2272
Drive & performance
Motor2200 W rated · 5000 W peak
Top speed (private)50 km/h
Max. Speed (km/h) on public roads25 Max. Speed (km/h) on public roads: 25; legal/public-road setting. Technical/private-land performance depends on local rules and rider responsibility.
Range70 km
Max grade35°
Max load120 kg
Chassis
Tire18″
SuspensionVariable air
Weight25 kg
TrolleyTelescopic handle
SealingWeather-resistant within normal urban use (no single IP class published)
Q-01S18 vs S18 Pro vs S18 PRO+ — which is which?

S18 (2019): original LG M50LT cells. S18 Pro: Molicel P42A intermediate revision. S18 PRO+ (this page): Samsung INR21700-50S high-discharge cells. Same chassis across generations — the difference is in the pack.

Q-02Why does the cell chemistry matter?

At full throttle and below 30% state of charge, 50S cells deliver more current with less voltage sag. Practical effect: smoother acceleration when the battery is mostly empty, less alarm-cutoff drama on long climbs.

Q-03Is the 18″ tire tubeless?

Tubeless options exist; regional stock varies. Confirm your specific shipment with us before ordering if tubeless is a hard requirement.

Q-04Can I ride in rain?

KingSong does not publish a single IP rating. Treat the wheel as weather-resistant within normal urban use — splash and brief light rain are fine. Don't pressure-wash, don't ride through standing water.

Q-05Will it climb 35°?

Yes — the air suspension keeps the contact patch loaded and the 5000 W peak handles the spike. Grade rating is rated, not theoretical.

Q-06EU warranty?

Two years through OneRide with home pick-up service.

Free EU delivery

2–8 working days. Carrier selected by destination and warehouse route.

2 years warranty

Home pick-up service. Battery, motor and chassis faults covered.

14-day returns

Changed your mind? Send it back within 14 days, no questions asked.

Specialist EUC advice

In-house workshop in Valencia. Service info →

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