Balance Bikes >>
HKM-4498643 16-Inch No-Pedal Electric Balance Bike with 350W Brushless Rear Hub Motor, Two-Speed Drive and Adjustable Saddle
HKM-4498643
The No-Pedal Cross Bike That Grows With Them
The HKM-4498643 is the FXB03-16, a 16-inch no-pedal electric balance bike built for riders aged five to twelve. A 350W brushless rear hub motor drives a lightweight aluminium alloy frame from a 36V lithium pack, with a two-speed drive that lets the rider set the pace and a disc brake that answers one lever with a clean stop. The saddle adjusts as legs grow, the alloy wheels shrug off kerbs and gravel paths, and the 60 kg load rating means the bike keeps up long after the first nervous session becomes a confident one.
Key Features
Six details that define how the HKM-4498643 rides.
A 350W Brushless Hub
The motor lives in the rear wheel, so drive goes straight into the tire with no chain to guard and nothing hot near ankles. Brushless running stays quiet and even, which keeps the first powered sessions calm for rider and parent alike.
No Pedals, All Balance
The no-pedal platform makes balance the whole curriculum: feet rest on the boards, throttle does the work, and coordination builds without the noise of gears and cranks. It is the cleanest bridge from push bike to pedal bike there is.
Two-Speed Drive
The rider picks between a calm pace and a livelier gear, which turns speed into a decision instead of an accident. Choosing deliberately is a habit that transfers straight onto every faster bike they will ride later.
A Disc Brake, One Lever
One lever works one disc with a bite that stays predictable on pavement and hardpack alike. The stopping point a rider memorizes in the first week holds for the season, wet or dry.
An Alloy Frame and Wheels
Aluminium alloy in both the frame and the wheels keeps the 16-inch platform light enough to carry and tough enough for kerbs. The overall footprint of 48 by 22 by 26 inches stores flat against a wall.
A Saddle That Follows
The seat post travel covers the five-to-twelve age window, so the same bike serves the whole run instead of being traded every spring. Both feet stay planted at every height, which is where confidence comes from.
Overview
A 16-inch no-pedal electric balance bike with two-speed drive.
The HKM-4498643 is the FXB03-16, a 16-inch no-pedal electric balance bike for riders aged five to twelve. A 350W brushless rear hub motor drives a lightweight aluminium alloy frame from a 36V lithium pack, and the two-speed drive lets the rider choose a calm pace or a livelier gear for the path ahead. A disc brake delivers one predictable stop from a single lever, the alloy wheels hold their line over kerbs and gravel, and the adjustable saddle follows legs that will not stop growing. The frame carries up to 60 kg, the whole bike measures 48 by 22 by 26 inches, and the no-pedal layout keeps the focus exactly where it belongs: balance first, speed second.
Balance First, Throttle Second
The no-pedal layout that teaches while it rides.
With no cranks in the way, the HKM-4498643 makes balance the primary skill: feet ride the boards, the throttle does the pushing, and every wobble is corrected with a foot instead of a fall. Confidence arrives faster because the floor is always half an inch away.
Full Specifications
Everything worth knowing, in one table.
Why No Pedals at 16 Inches Works
The bridge size between push bike and pedal bike.
Sixteen inches is where riders start covering ground, and the no-pedal layout is what keeps the learning curve honest. The HKM-4498643 puts the rider’s feet on boards instead of cranks, so balance is practiced every second the bike moves, not just during coasting gaps. The 350W hub supplies the motion, the two-speed drive scales the pace to the rider’s judgement, and the disc brake ends each run the same tidy way. The alloy frame and wheels keep the weight manageable for a parent loading a car and for a rider banking into a gravel corner, and the 60 kg load rating means the bike is not outgrown by weight long before it is outgrown by skill.
What’s in the Box
What arrives in the box, ready to build.
1 x 16-Inch Balance Bike
Frame, fork and wheels come fitted
1 x 36V Lithium Battery
Pack seated in the frame mount
1 x Mains Charger
Matched to the pack from the factory
1 x Saddle and Post
Fitted, ready to set for leg length
1 x Manual and Hex Keys
Setup sheets with the tools supplied
1 x Warranty Card
Registration details for the records
Why Choose the HKM-4498643
Six reasons families pick the HKM-4498643.
It Teaches the Right Thing
The no-pedal platform makes balance the whole lesson. Riders correct wobbles with their feet, learn throttle restraint through the two-speed drive, and arrive at a pedal bike already knowing the only hard part.
The Size Window Is Wide
An adjustable saddle and a 60 kg load rating cover the five-to-twelve window without drama. The bike grows with the rider instead of being outgrown the season after the color is finally chosen.
Alloy Where It Counts
Aluminium alloy in the frame and the wheels keeps weight down for carrying and strength up for kerbs. The bike survives the way 16-inch riders actually use it, which is enthusiastically.
Speed Stays a Decision
The two-speed drive makes pace a choice the rider makes before the wheels turn. Low gear for learning and narrow paths, livelier gear for open stretches, with no surprises in between.
Braking Without Drama
The disc brake gives one consistent bite from one small lever, dry or damp. The stopping point stays memorized, which is exactly what a young rider needs when the path points downhill.
Storage Is Simple
At 48 by 22 by 26 inches the bike slots into a boot, a stair cupboard or the corner of a garage. Compact storage is the quiet reason some bikes get ridden weekly and others do not.
Frequently Asked Questions
Straight answers about the HKM-4498643.
What ages and sizes does the HKM-4498643 suit?
The design window is five to twelve years, with the adjustable saddle covering the growth in between. The honest fit check is leg length: both feet should rest flat while seated, because the no-pedal layout depends on the rider being able to catch themselves. Set the saddle low at first and raise it as confidence builds. Keep the first rides to pavement and short loops.
How does a no-pedal electric bike work?
The 350W hub motor supplies the motion, the rider supplies the balance. Feet ride on the boards rather than cranks, the throttle controls the pace, and the two-speed drive scales how eagerly the motor responds. Stopping is one lever on one disc. The rider practices weight, steering and braking every second the bike rolls. The boards are where the feet live, always.
Is 350W enough power for a 16-inch bike?
Yes, and deliberately so. The motor pulls a light alloy frame briskly in the high gear while staying calm and controllable in the low gear, which is the balance a five-to-twelve window actually needs. Power a child cannot modulate is not a feature, and this drive keeps the excitement inside the handlebars. Modulation beats top speed at this age, every time.
How strong is the frame for older riders?
The aluminium alloy frame and wheels carry up to 60 kg, which covers most of the stated age window with room to spare. The alloy construction is the reason: strength where the loads land, lightness everywhere else. Keep the tire pressure right and the platform feels solid under a tall ten-year-old. Weigh the rider with gear on for the honest number.
What assembly and upkeep are involved?
Assembly covers the handlebar, saddle height and battery seating, with the supplied hex keys and the manual. Upkeep is short: tire pressure before sessions, a brake squeeze test, a wipe-down after dusty rides and a glance at the disc after wet ones. There is no chain on a no-pedal bike, so nothing needs oiling. A weekly five minutes covers all of it.
How does it handle rough paths?
Well, within reason. The 16-inch alloy wheels roll over cracks, gravel and kerb edges that stop smaller wheels, and the low center of gravity keeps the handling settled. Loose sand and deep mud defeat every small wheel including this one. For family trails, fire roads and park paths, it is exactly the right tool. Ride it like a push bike on the rough stuff.
Quick Troubleshooting
When the HKM-4498643 needs attention, start here.
The bike will not power on
Unclip the pack and seat it back until the latch clicks, because a pack just short of home makes no contact. Press the power button and watch for the indicator. If it stays dark, charge for half an hour and retry, check the mount contacts for grit, and confirm the wall socket with another device first. Cold packs read empty until warmed, so bring the bike indoors before judging a winter battery. Check the charger indicator too, because a dead brick imitates a dead pack.
The brake feels soft
Check the lever first: the bite should arrive well before half travel. Take up slack at the barrel adjuster, then inspect the cable anchor at the calliper. A rotor touched by oily fingers will glaze and lose grip, so clean it with isopropyl alcohol and replace pads that have soaked oil through. Bed new pads with ten firm stops from walking pace before judging the final bite point.
The wheels feel loose or rattly
Lift each end in turn and check for play at the hub by rocking the wheel side to side. Snug the axle nuts evenly and recheck. Spin the wheel after tightening: a light rub is normal, a heavy grind points to the bearings and needs attention before the next proper ride. Recheck axle torque after the first few rides, because new hardware settles.
The low and high gears feel alike
Check the drive selector connector first, because a half-seated plug makes both modes read the same. Cycle the switch through both positions while stationary and listen for the change. If the modes still feel identical, note when it happens and contact support about the controller. A short video of the behavior helps support diagnose it faster, and keep riding flat and short until the question is settled.
The throttle surges under load
A pack running low makes the motor surge exactly when the rider asks for more, so start with a full charge. Check the throttle connector for a half-seated plug and keep the grip area clean and dry. If surging continues with everything checked, note the mode and speed it happens at and contact support. Water crossings deeper than the hub are best walked around.
The saddle will not hold height
Open the clamp fully and check the post for grit or scratches, then re-grease the clamp bolt lightly and torque it snug. A post that slips a few millimetres per ride usually needs its clamp cleaned, not replaced. If the slip continues, wrap the service list into a support message with photos. If the clamp bolt is already snug, the post or clamp is worn and needs parts.
Service & Policies
Coverage that stays on duty through the whole growing window.
Free Shipping on All Orders
Every order ships free. Handling time: 0-1 business days (Monday to Friday). Transit time: 2-5 business days (Monday to Friday). A tracking number is emailed as soon as the parcel leaves our warehouse.
180 Days Purchase Protection
Your purchase is protected for 180 days from the delivery date against manufacturing defects and damage in transit. If something arrives wrong, we make it right.
30 Days Money Back Guarantee
Not completely satisfied? Request a return within 30 days of delivery for a full refund. We keep the process simple and hassle-free.
24 Months Warranty Service
The product is covered by a 24-month warranty from the delivery date against manufacturing defects. Coverage includes parts and labor; normal-wear items are excluded.
Important Safety Notes
Read these notes before the first ride on the HKM-4498643.
The HKM-4498643 is a powered bike for riders aged five to twelve, so a certified helmet goes on before the first throttle press and stays on for every session. Start in the low speed mode on wide, quiet pavement until steering and braking are automatic, and keep an adult within sight whenever the bike is powered on. Check that the battery is fully latched before each ride, squeeze the brake lever to confirm the bite, and keep fingers, laces and loose clothing clear of the rear hub and the spinning disc. The 60 kg load rating is a hard limit, not a suggestion. The motor and disc run hot after long sessions, so let both cool before touching or loading the bike. Charge the 36V pack indoors at room temperature on a hard surface and unplug once the indicator shows full.
HKM-4498643 - 16-inch no-pedal electric balance bike with a 350W brushless rear hub motor, a 36V lithium battery, a two-speed drive, a disc brake system, an adjustable saddle, 16-inch alloy wheels and a lightweight aluminium alloy frame rated to 60 kg for riders aged five to twelve. Read the manual before first use. Nothing here is safety certification advice.
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.
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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.
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Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
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Fast Refund
Refund processed within 10 business days.
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Returns & Exchanges Overview
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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
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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
