Balance Bikes >>
HKM-9151699 16 Inch Electric Balance Bike FXB03-16 for Ages 5 and Up, 350W Hub Motor 36V Lithium Battery Steel Fork Disc Brake
HKM-9151699
FXB03-16: The Balanced First Ride
The FXB03-16 from Fish Extreme keeps the first powered ride honest: no pedals, feet where the ground is, and a 350W hub motor that assists rather than takes over. A two-speed transmission lets riders pick their pace, the 36V 2.5Ah battery balances performance with ride time, and the disc brake finishes every run with reliable stopping power. The aluminium alloy frame, steel fork and full shockproof construction carry riders up to 50 kg in comfort from age five up.
Key Features
Six details that define the HKM-9151699.
350W Hub Motor
The 350W motor lives at the hub, so assistance arrives right where the wheel meets the ground. It is easy, maneuverable power that lets kids explore their surroundings rather than wrestle with the bike.
Two-Speed Transmission
The two-speed drivetrain lets young riders choose their level of pace to match comfort and skill. New riders stay gentle; confident ones open up, with the bike growing alongside ability instead of capping it.
36V 2.5Ah Battery
The 36V 2.5Ah battery strikes a deliberate balance between performance and ride time, sized for neighborhood cruises and park sessions rather than all-day expeditions. Top it up between rides and it is always ready.
Steel Fork, Shockproof Frame
The steel fork holds the front end steady while the full shockproof frame absorbs the bumps of uneven surfaces. Around them sits a lightweight aluminium alloy chassis that stays durable ride after ride.
No Pedals, No Training Wheels
The bike was thoughtfully designed without pedals or training wheels, so balance and control come first. Children steady themselves with their feet and learn to ride independently, the way the skill is actually built.
Ready for Various Terrains
Sixteen-inch wheels on aluminium alloy rims carry the ride across pavement, paths and park grass, with a 50 kg load rating for growing kids. Classic white and black colorways keep the look clean.
Overview
A 16-inch FXB03-16 balance bike with a 350W hub motor, 36V battery and steel fork.
The FXB03-16 is Fish Extreme's take on the first powered ride: safe enough to trust and still pure freedom, and it starts with the format. No pedals and no training wheels, so balance and control are learned with feet close to the ground. Around that sits a genuinely capable bike: a 350W hub motor for easy maneuvering, a two-speed transmission that grows with skill, a 36V 2.5Ah battery balanced between performance and ride time, and a disc brake for reliable stopping power. The aluminium alloy frame, steel fork and full shockproof construction smooth the uneven surfaces young riders meet, while 16-inch wheels on aluminium rims hold the ride steady to 50 kg. For ages five and up, it turns neighborhood laps into confident adventure.
Explore, With Feet Close By
Balance learned, freedom earned.

The 350W hub motor opens the neighborhood, and the two-speed transmission decides how fast the rider meets it. With no pedals and no training wheels, every journey is balance practice dressed up as adventure.
Full Specifications
Everything worth knowing, in one table.
The Battery That Respects the Session
Sized for the ride, not the brochure.
A first bike does not need the biggest battery; it needs the right one. The FXB03-16 runs a 36V 2.5Ah pack chosen to balance performance with ride time, which in practice means enough for neighborhood loops and park sessions without carrying weight a young rider never uses. That philosophy runs through the whole bike: a 350W hub motor sized for maneuvering rather than showing off, a two-speed transmission that matches pace to skill, and a disc brake with reliable stopping power at every level. The aluminium alloy frame, steel fork and full shockproof construction keep the ride comfortable over uneven ground, and the 50 kg load rating leaves room for the growing years. Nothing oversized, nothing missing.
What’s in the Box
What arrives in the box, ready to build.
1 x 16-Inch FXB03-16 Balance Bike
Frame, fork and wheels come fitted from the box
1 x 36V 2.5Ah Battery
Fitted and matched to the charger from the factory
1 x Mains Charger
Matched to the battery pack from the factory
1 x Seat and Post
Fitted, ready to set for the height of the rider
1 x Manual and Hex Keys
Setup sheets with the tools supplied in the pack
1 x Warranty Card
Registration details for the records at home
Why Choose the HKM-9151699
Six reasons families pick the HKM-9151699.
Balance Before Bravado
No pedals and no training wheels mean the rider learns the skill that matters first: staying upright under their own control. Everything else on the bike is built around that principle.
Power Where It Helps
The 350W hub motor is tuned for easy maneuvering, giving kids the freedom to explore rather than a number to chase. Assistance arrives smoothly, the way first-time riders need it to.
A Pace They Choose
The two-speed transmission lets riders match the bike to their comfort and skill, with parents guiding the progression. The low setting builds habits; the higher one rewards them.
Comfort Over Rough Ground
The full shockproof frame and steel fork soak up the bumps of uneven surfaces, while the lightweight aluminium alloy chassis keeps the bike nimble. Rough paths become practice, not punishment.
Stopping You Can Trust
The disc brake system offers reliable stopping power in the moments that need it. Consistent brakes are quiet confidence for riders and louder confidence for parents.
Room to Grow
Sixteen-inch wheels, a 50 kg load rating and ages five and up give the bike years of relevance. Classic white and black finishes keep it looking the part the whole time.
Frequently Asked Questions
Straight answers about the HKM-9151699.
What ages and riders does the FXB03-16 suit?
The bike is designed for adventurous riders aged five and up, with a 50 kg load rating and 16-inch wheels. Fit matters more than the birthday: the honest check is both feet flat on the ground while seated, knees slightly bent and hands reaching the bars at comfortable extension. If a younger or smaller rider is between sizes, judge by reach and inseam rather than age alone.
How does the two-speed transmission work?
The two-speed drivetrain offers varying levels of pace so riders can match the bike to their comfort and skill. Keep new riders in the lower setting until balance, throttle and the disc brake are all under smooth control, then step up on ground with clear sight lines. Adults should approve every change, and the pace should always suit the surface of the day.
What is the battery like in everyday use?
The 36V 2.5Ah battery is chosen to balance performance with ride time, which suits neighborhood cruises and park sessions. Actual ride time varies with the speed setting, terrain, rider weight and temperature, so treat the first few rides as a calibration. Charge indoors at room temperature on a hard surface and unplug once the charge completes. A partial top-up before a short session is fine too, since lithium packs are happy with small sips.
Why no pedals and no training wheels?
The bike was thoughtfully designed without them. Training wheels provide artificial stability that delays real balance, while the no-pedal format lets children propel and steady themselves with their feet on the ground. That builds genuine core strength, coordination and riding instincts, and most riders adapt within a few sessions.
What terrain can it handle?
The FXB03-16 is ideal for various terrains: pavement, packed paths and park grass. The full shockproof frame and steel fork take the edge off uneven surfaces, and the 16-inch wheels on aluminium alloy rims hold the ride steady. Loose sand and deep gravel are beyond any bike in this class, so treat those as walk-around sections.
What assembly and upkeep are involved?
The bike arrives partially assembled: handlebar, seat height and a battery charge check cover most of it, using the supplied tools and manual. Beyond that, check tire pressure weekly, test the disc brake before rides and wipe the bike down after dusty ones. The motor lives at the hub, so drivetrain upkeep stays simple all season.
Quick Troubleshooting
When the HKM-9151699 needs attention, start here.
The bike will not power on
Confirm the battery has charge, then check the power button and indicator with the bike on flat ground. If the indicator stays dark, connect the charger for twenty minutes and retry, and inspect the contacts and connectors for grit or moisture. If everything looks clean and the bike stays dead, note what happened before the failure and contact support rather than forcing repeated restarts.
The ride time keeps shrinking
Compare riding style first, because the higher speed setting and hills use far more per minute than gentle cruising. Check tire pressure, since soft tires cost range twice. Cold weather trims every lithium pack. If nothing has changed, run one full uninterrupted charge and retest the same loop on the same setting, and log the loop you retest on before replacing anything.
The brake feels weak
Start with the lever and cable: check for stretch, grit at the lever pivot and full free travel, then follow the manual for adjustment. Retest on flat ground at low speed before returning to the higher setting. If the bite still feels weak with the cable set correctly, note when the feel changed and contact support, because stopping power is the one system never to ride on a maybe.
The charger light never turns green
Confirm the wall socket with another device, then reseat the charger plug at both the wall and the bike. Charge indoors at room temperature, because cold packs refuse a full cycle, and check the contacts for grit or bent pins. If the indicator still never completes, stop forcing cycles and contact support with a note of recent charging times. Do not leave a stalled charge unattended overnight.
The motor cut out mid-ride
A battery running low or hot will step back before it dies, so start with a full charge and a cool-down. Confirm the speed setting has not been nudged and the connectors are seated. If cutouts continue on flat ground in the low setting with a full, cool battery, note the setting in use and contact support. Climbs point to the pack; flat-ground cutouts point to the controller.
The motor feels weaker than usual
First confirm the transmission is actually in the higher setting, because the most common cause is the bike still in the low one. Next check tire pressure, since soft tires sap assistance long before the motor does. A low battery also steps the support back to protect itself. If the bike still feels flat with fresh tires and a full charge, note the details and contact support.
Service & Policies
Coverage that rides every road with you.
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-9151699.
The HKM-9151699 is a no-pedal electric balance bike for riders aged five and up, so a certified helmet is mandatory before every ride, with closed shoes completing the kit. Start in the lower speed setting on flat, open ground until the rider has the brake and the throttle under smooth control, with an adult approving every change. Confirm the battery is charged and seated before each ride, test the disc brake for the bite, and check the axle and stem hardware for torque. Keep fingers, laces and loose clothing clear of the hub while powered, and let hot parts cool after sessions. Charge the 36V pack indoors at room temperature on a hard surface, unplug once full, and never carry a passenger.
HKM-9151699 - FXB03-16 no-pedal electric balance bike for ages 5 and up with a 350W hub motor, a two-speed transmission, a 36V 2.5Ah lithium battery, a disc brake, an aluminium alloy frame with steel fork and full shockproof construction, 16-inch wheels and a 50 kg load rating. Read the manual before first use. Nothing here is safety certification advice.
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24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
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