Balance Bikes >>
HKM-426195 Children's 20-Inch Electric Bike with 800W Hub Motor, 36V Lithium Battery, and Hydraulic Disc Brakes for Ages 8-14
Electric Balance Bike · Youth Series
FXB05-16 Pro Cross
A 16-inch electric balance bike engineered for riders aged 8 to 14 years. Precision-crafted with a lightweight aluminum frame, a high-torque 400W brushless motor, and advanced hydraulic disc braking — built to inspire confidence across neighborhood streets and rugged trails alike.
Every component of the FXB05-16pro Cross reflects a commitment to thoughtful engineering. From the adjustable hydraulic front fork that absorbs terrain imperfections to the leather-covered saddle designed for extended comfort, this is a machine that grows alongside its rider. Adventure begins with balance. Mastery follows with control.
18.6 mph
Top Speed
(30 km/h)
400W
Brushless Motor
Rated Power
36V 5Ah
Lithium Battery
180 Wh Capacity
176 lbs
Max Load
(80 kg)
Powertrain & Motor Technology
A precisely tuned propulsion system that balances responsive acceleration with smooth, controllable power delivery — ideal for young riders building their skills.
400W Brushless DC Motor
At the core of the FXB05-16pro Cross lies a 400W brushless DC hub motor — a design that eliminates the friction and wear associated with traditional brushed motors. Brushless technology employs permanent magnets and electronic commutation, resulting in higher efficiency, quieter operation, and a longer service life. The motor delivers consistent torque across a wide speed range, enabling the bike to reach a governed top speed of 18.6 mph (30 km/h). This speed ceiling is intentionally calibrated to align with youth riding safety standards while still providing an exhilarating experience. Unlike chain-driven systems, the hub motor's direct-drive architecture reduces maintenance complexity and ensures power is transmitted with minimal mechanical loss.
Intelligent Power Modulation
The electronic speed controller (ESC) integrated into the FXB05-16pro Cross continuously monitors throttle input, battery voltage, and motor temperature to optimize power output in real time. This intelligent modulation prevents abrupt torque spikes that could unsettle a novice rider, instead delivering a progressive acceleration curve that feels natural and predictable. The system also incorporates regenerative capability during deceleration, subtly recovering energy to extend ride duration — a feature borrowed from full-scale electric vehicle engineering, scaled appropriately for a youth-oriented platform.
Battery & Energy Management
A high-density lithium power source engineered for reliability, longevity, and extended ride sessions.
36V / 5Ah
Lithium-Ion Pack
180 Wh
Total Capacity
BMS Protected
Battery Management
Smart Battery Management System (BMS)
The integrated Battery Management System continuously monitors individual cell voltages, temperature, and charge/discharge rates. This multi-layer protection guards against overcharge, over-discharge, short-circuit, and thermal runaway — preserving both battery health and rider safety. The 36V 5Ah lithium-ion pack, with a total energy capacity of 180 watt-hours, is optimized for a balance of weight and endurance. The BMS also enables consistent power delivery even as the state of charge declines, so the riding experience remains predictable from the first mile to the last.
Hydraulic Disc Braking System
Stopping power that inspires confidence — engineered with the same principles found in professional-grade mountain bikes.
Dual Hydraulic Disc Brakes
The FXB05-16pro Cross is equipped with hydraulic disc brakes on both the front and rear wheels — a significant upgrade over mechanical cable-actuated systems commonly found in this category. Hydraulic braking uses incompressible fluid to transmit force from the lever to the caliper, resulting in superior modulation, reduced hand fatigue, and consistent performance in wet or dusty conditions. The stainless steel rotors dissipate heat efficiently, maintaining braking integrity even during prolonged descent on hilly terrain. For a young rider, this means shorter stopping distances and a more intuitive feel at the lever — critical factors when developing safe riding habits.
Precision Brake Modulation
Unlike binary on/off braking systems, the hydraulic setup on the FXB05-16pro Cross offers progressive modulation — the rider can apply subtle pressure for gentle speed scrubbing or squeeze firmly for rapid deceleration. This nuanced control is especially valuable for less experienced riders who are still developing their coordination and spatial awareness. The lever reach is adjustable to accommodate varying hand sizes within the 8-to-14-year age range, ensuring ergonomic comfort during extended use.
Chassis, Frame & Suspension
A lightweight yet robust structure that forms the foundation for confident, agile riding across diverse terrain.
Aluminum Alloy Frame
The frame is constructed from 6061 aluminum alloy, selected for its exceptional strength-to-weight ratio. This aerospace-grade material resists corrosion while keeping the overall bike weight manageable for young riders. The geometry is optimized for a low center of gravity, enhancing stability at both low maneuvering speeds and the bike's top velocity of 18.6 mph (30 km/h).
Adjustable Hydraulic Front Fork
The hydraulic front suspension fork features adjustable damping to match the rider's weight and preferred terrain response. Whether absorbing the chatter of a gravel path or smoothing out pavement irregularities, the fork's oil-damped internals provide controlled compression and rebound — a level of sophistication typically reserved for adult mountain bikes. This adaptability ensures comfort without sacrificing steering precision.
Tires, Traction & Stability
Purpose-built rubber that connects the rider to the surface with confidence-inspiring grip.
16 × 2.4 Inch All-Terrain Tires
The FXB05-16pro Cross rolls on 16 × 2.4 inch (406 × 61 mm) pneumatic tires — a versatile size that strikes a balance between rolling efficiency on pavement and grip on loose surfaces. The 2.4-inch width provides a generous contact patch for enhanced traction during cornering and braking, while the knobby tread pattern sheds mud and debris effectively. Pneumatic construction offers natural shock absorption, complementing the hydraulic fork to create a dual-layer comfort system. Tire pressure can be adjusted to suit conditions: higher pressure for reduced rolling resistance on smooth roads, lower pressure for increased grip on trails.
Rider Comfort & Ergonomic Design
Every touchpoint is considered — because comfort directly influences a young rider's confidence and endurance.
Genuine Leather-Covered Saddle
The saddle is wrapped in genuine leather — a material chosen for its breathability, durability, and ability to conform subtly to the rider over time. Unlike synthetic alternatives that can become slippery when wet or uncomfortably hot in direct sun, leather maintains a consistent tactile quality across conditions. The saddle's shape is anatomically contoured to support the sit bones without creating pressure points, enabling longer rides with reduced fatigue. Padding density is calibrated to absorb road vibrations without being so soft that it compromises pedaling efficiency.
Adjustable Cockpit Geometry
Both the saddle height and handlebar position are tool-free adjustable across a generous range, accommodating growth spurts typical of the 8-to-14-year demographic. This adjustability ensures the bike can be fine-tuned to each rider's proportions, promoting a neutral riding posture that reduces strain on the back, shoulders, and wrists. A properly fitted bike is not merely more comfortable — it is fundamentally safer, as the rider maintains optimal control over steering and braking inputs.
Safety Engineering
A multi-layered approach to rider protection — because peace of mind is the foundation of every great adventure.
Dual Brakes
Front & Rear Hydraulic
Governed Speed
18.6 mph (30 km/h) Max
Low CG Frame
Enhanced Stability
Frequently Asked Questions
Detailed answers to common inquiries about the FXB05-16pro Cross electric balance bike.
What age range is the FXB05-16pro Cross designed for?
How does the hydraulic disc brake system differ from mechanical brakes?
What is the expected battery range on a single charge?
Is the bike suitable for off-road trail use?
What maintenance does the FXB05-16pro Cross require?
Free Shipping on All Orders
Every order ships at no additional cost, regardless of destination within the contiguous United States. Standard delivery typically arrives within 5–8 business days. No minimum purchase required — the price you see is the price you pay, with no surprises at checkout.
180-Day Purchase Protection
Should a manufacturing defect arise within 180 days of delivery, we will repair or replace the affected component at no charge. This protection covers material and workmanship issues under normal use conditions, as outlined in the product documentation.
30-Day Money-Back Guarantee
If the FXB05-16pro Cross does not meet expectations, it may be returned within 30 days of delivery for a full refund of the purchase price. The bike must be in like-new condition with all original accessories and packaging. Return shipping instructions are provided upon initiating a return request.
24-Month Warranty Service
A comprehensive 24-month warranty covers the frame, motor, battery, and electronic controller against defects in materials and workmanship. Service is facilitated through authorized centers, with replacement parts dispatched promptly to minimize downtime. Full warranty terms are available in the product documentation.
The FXB05-16pro Cross is designed and tested to meet rigorous safety and performance standards. Specifications are subject to change without notice as part of continuous product improvement. Always wear a helmet and appropriate protective gear when riding. Observe all local traffic regulations and ride responsibly.
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.
What Is Covered
Manufacturing Defects
We replace items with material or workmanship flaws at no charge.
Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
Zero Hidden Fees
All shipping costs for replacements and returns are covered.
How to File a Claim
How This Differs from the Warranty
The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.
We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.
Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.
Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
Proof of Purchase
A receipt or order number is required.
Fast Refund
Refund processed within 10 business days.
How to Start a Return
Returns & Exchanges Overview
Damages & Exchanges
Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.
We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.
The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.
What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
Free Repair or Replacement
Whichever is faster, at no cost to you.
Quick Turnaround
Claims assessed within 1 business day.
Transferable
Warranty follows the product, not the owner.
How to File a Warranty Claim
Every order ships free—no minimums, no hidden fees. We currently deliver across the United States and are actively working to expand to more countries. We partner with reliable U.S. courier services to ensure your order arrives safely and on time.
Our delivery process is designed for transparency. From the moment you place your order to the moment it reaches your door, you receive clear updates at every stage. We carefully inspect each product before dispatch, and we provide tracking information as soon as your order ships.
Our U.S. Shipping Partners
USPS
Official national carrier with nationwide coverage.
UPS
Fast and reliable ground and express shipping.
FedEx
Express delivery with real-time tracking.
DHL eCommerce
Efficient parcel delivery for e-commerce shipments.
Delivery Process
Delivery Time Summary
Cancellations & Taxes
You may cancel your order at any time before it ships. All product prices include applicable taxes, and there are no additional VAT or customs fees for orders delivered within the United States.
Whether you have a question, need help with an order, or just want some advice, our support team is available around the clock. We don't just respond to messages—we work with you to find real solutions that fit your needs.
Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.
How We Can Help
Product Guidance
Our experts help you choose the right product.
Order Assistance
Modify orders, track shipments, or speed up delivery.
Warranty & Returns
Start claims or returns quickly and easily.
Technical Troubleshooting
Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week
