A More Manageable Pace
Up to 9.3 mph keeps the S9 focused on balance, turning and controlled first rides instead of chasing performance numbers.
KingSong S9 Kids Self-Balancing Electric Unicycle, 9-Inch Tire, 115.4Wh Battery, UL Certified
Youth Electric Unicycle for Everyday Rides
$449.00
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- First-Ride Friendly Platform: A compact 10-inch format and intentionally manageable riding pace make the S9 easier to approach for younger and first-time riders.
- 350W Rated Motor: Smooth, controlled output is designed around learning, low-speed handling and short everyday rides rather than high-performance riding.
- 115.4Wh Battery: A compact battery supports up to 7.5 miles of published range for short neighborhood and everyday trips.
- Removable Learning Support: Auxiliary wheels add extra side support during early-stage practice and can be removed as confidence grows.
- Connected Personalization: KingSong App support and customizable lighting add useful settings and a more personal look.
Features at a Glance
The KingSong S9 is a self-balancing electric unicycle for young and first-time riders learning short neighborhood rides. Its ABS+PC frame, removable auxiliary steering wheel, and self-protection systems are designed to provide a more supported learning experience while riders develop balance and control.
Key Features & Specs
- Battery capacity: 115.4Wh
- Range: Up to 7 miles (12 km) per charge
- Charging time: 2-3 hours for a full charge
- Product weight: 17.9 lb (8.1 kg)
- Maximum load: 132 lb (60 kg)
- Frame material: ABS+PC
- Learning support: Removable auxiliary steering wheel
- Lighting: RGB accent lighting
- Electrical safety: UL certified
How it Compares
| Feature | This Product | Why It Matters |
|---|---|---|
| Battery Capacity | 115.4Wh | Longer range between charges for extended riding sessions. |
| Maximum Mileage | 7 miles (12 km) | Suitable for neighborhood rides or short trips. |
Recommended Use Cases
- Learning balance and basic handling in a controlled neighborhood setting.
- Short recreational rides after school or on weekends.
- Practicing with added stability from the auxiliary steering wheel, then removing it as confidence develops.
- Carrying between home, paved riding areas, and indoor storage locations.
- A parent-guided introduction to electric unicycle riding for a younger rider within the 132 lb (60 kg) maximum load.
Frequently Asked Questions
Is the KingSong S9 a good electric unicycle for kids or beginners?
Yes, the KingSong S9 is designed for young and first-time riders, with self-balancing and self-protection systems intended to provide a stable, forgiving learning experience. Its removable auxiliary steering wheel gives beginners added support while they build confidence.
Can a young rider learn on the KingSong S9 with extra support?
Yes, the KingSong S9 includes a removable auxiliary steering wheel for additional support during the learning phase. The product is built for younger riders and has a maximum load of 132 lb (60 kg).
Is the KingSong S9 practical for neighborhood riding and short outings?
Yes, the KingSong S9 provides up to 7 miles (12 km) of range per charge and takes 2-3 hours to fully charge. Its 115.4Wh battery supports short neighborhood rides and an afternoon of riding with charging planned around its stated range.
What should parents consider when choosing an electric unicycle for a first-time rider?
Parents should look for beginner-oriented stability support, a suitable rider load limit, manageable weight, and a range that matches the planned riding area. The KingSong S9 provides self-balancing and self-protection systems, a removable auxiliary steering wheel, weighs 17.9 lb (8.1 kg), and supports riders up to 132 lb (60 kg).
In Stock — Estimated delivery in 3–7 business days.
KingSong S9 Kids Self-Balancing Electric Unicycle, 9-Inch Tire, 115.4Wh Battery, UL Certified
Technical specifications
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Rated PowerPeak PowerMax Torque—Max Climbing AngleBatterySpeedRangeCharging TimeTire SizeSuspension—Braking SystemFrame MaterialSmart FeaturesFind My—IP RatingLighting SystemNet WeightMax LoadDimensions
WHY S9
Small by Design. Built for First Rides.
S9 keeps speed, size and everyday range intentionally manageable, creating a more approachable starting point for younger riders and first-time EUC learners.
Compact by Design
The 10-inch wheel keeps the platform small and responsive for low-speed practice, tight spaces and short everyday rides.
Made for Short Rides
Up to 7.5 miles of published range fits neighborhood rides, practice sessions and short-distance mobility without the bulk of a long-range EUC.
EVERYDAY SCALE
Built Around the First Few Miles.
The S9 is intentionally sized for learning, short-distance mobility and everyday fun—not high-speed or long-range riding.
LEARNING SUPPORT
A Little More Support While You Find Your Balance.
S9 can be paired with removable auxiliary wheels to add extra lateral support during early practice, helping new riders focus on mounting, balance and controlled movement before progressing without them.
Removable Auxiliary Wheels
Extra Side Support During Early Practice
Quick, Simple Installation
Remove Them as Confidence Grows
BUILT FROM THE INSIDE OUT
Designed Around Control.
S9 uses a compact motor, integrated frame and battery-management system to support predictable everyday operation in a smaller first-ride platform.
Aluminum Alloy Structure
A compact aluminum-alloy body helps keep the S9 light and structurally integrated for everyday handling and storage.
350W Rated Motor
Power delivery is tuned for learning, low-speed control and short everyday rides rather than aggressive acceleration.
Smart BMS
Battery management monitors key electrical conditions and supports protection functions during charging and riding.
BASKETBALL-INSPIRED DESIGN
Built to Move. Designed to Feel Like Yours.
The basketball-inspired shell gives S9 a playful identity, while customizable lighting and app-connected settings let riders make the experience more personal.
10 inBasketball-Inspired Form
LEDCustomizable Lighting
APPConnected Settings
MADE FOR EVERYDAY FUN
Small Details That Make S9 Easier to Live With.
Simple charging, connected settings, compact storage and learning support round out a first-ride EUC without overcomplicating it.
2–3 Hour Charging
A compact battery keeps recharge time practical between short rides and practice sessions.
KingSong App
Connect with the KingSong App to access supported ride data, settings and personalization features.
Compact Portability
The smaller S9 platform is easier to move, store and bring along between short everyday rides.
Practice With More Support
Optional learning support helps make early mounting and balance practice feel less abrupt for first-time riders.
Learn the Basics of Riding the S9
Your first ride starts with the basics: mounting, balance, controlled movement and safe practice habits.
Technical Specifications
Performance & Range
Rated Power
350W
Peak Power
500W
Max Speed
9 mph
Climbing Capability
10°
Range
7 miles / 12 km
Battery
115.4 Wh
Charging
2-3 h
Ride & Control
Tire Size
10 inch
Max Load
132 lb / 60 kg
Net Weight
17.9 lb / 8.1 kg
Frame Material
ABS+PC
Smart & Safety
Lighting System
RGB Light
IP Rating
IP54
Smart Features
Removable Auxiliary Wheels
Performance & Range
Rated Power
350W
Peak Power
500W
Max Speed
9 mph
Climbing Capability
10°
Range
7 miles / 12 km
Battery
115.4 Wh
Charging
2-3 h
Ride & Control
Tire Size
10 inch
Max Load
132 lb / 60 kg
Net Weight
17.9 lb / 8.1 kg
Frame Material
ABS+PC
Smart & Safety
Lighting System
RGB Light
IP Rating
IP54
Smart Features
Removable Auxiliary Wheels
BEFORE THE FIRST RIDE
Questions, Clearly Answered.
Clear answers about learning, speed, range, charging, app features and everyday ownership before choosing the S9.
Start with the basics.
S9 is built around a smaller, slower first-ride experience—not performance riding.
Who is the S9 designed for?
S9 is designed for younger riders and first-time EUC learners who want a compact, lower-speed platform for practice and short everyday rides. Electric unicycles still require balance, protective gear and responsible supervision where appropriate.
Is the S9 suitable for a first-time rider?
Yes. Its compact 10-inch format and published top speed of up to 9.3 mph make it intentionally more approachable than a performance-focused EUC. New riders should still practice in a flat, open area and wear appropriate protective gear.
How fast does the S9 go?
The published top speed is up to 9.3 mph. Actual available speed can vary with rider weight, battery level, settings, terrain and riding conditions.
How far can the S9 travel on one charge?
The published maximum range is up to approximately 7.5 miles under ideal conditions. Real-world range varies with rider weight, speed, temperature, terrain, tire pressure and riding style.
Does the S9 support learning wheels?
Yes. Removable auxiliary wheels can add extra side support during early-stage practice. They are a learning aid rather than a substitute for protective gear, supervision or proper riding technique.
How long does charging take?
A full recharge takes approximately 2–3 hours with the standard charging setup. Charging time can vary with battery state, temperature and operating conditions.
Can I connect the S9 to the KingSong App?
Yes. The S9 supports KingSong App connectivity for compatible ride information, settings and personalization features. Available functions can depend on the current app and firmware version.
Can the S9 lighting be customized?
The S9 includes customizable LED lighting for a more personal look. Available lighting effects and controls can depend on the current app and firmware version.
What protective gear should a new rider use?
Use an appropriately fitted helmet and suitable protective equipment such as wrist guards, knee pads and elbow pads. Start slowly in a clear practice area away from traffic and obstacles.
Can the S9 be ridden on public roads or sidewalks?
Rules for electric unicycles vary by country, state and city. Check the laws and riding rules that apply in your area before using the S9 in public spaces.
What warranty does the S9 include?
The current KingSong online-store warranty is 12 months for eligible manufacturing issues, subject to the official warranty policy and exclusions. Review the current policy before ordering for complete coverage details.
Need more help before ordering?
View warranty policy
Review the current manual, warranty coverage and local riding rules if you need model-specific guidance.
