Balance Bikes >>
HKM-5416147 16-Inch Electric Balance Bike for Young Riders with a 350W Brushless Motor, 36V Battery and Aluminium Alloy Frame
HKM-5416147
The FXB02-16cross: Three Speeds, 30-50 Nm
The HKM-5416147 is the FXB02-16cross, a 16-inch electric balance bike running a 36V 350W brushless motor with 30-50 Nm of torque. Three speed settings pace the ride from leisurely cruising to exhilarating running, and the central 5.0Ah battery charges in 1 to 3 hours for 10 to 30 km of range. The disc brake system brings the stops, the aluminium alloy frame keeps the build light and durable, and the low-mounted pack keeps the handling balanced through every setting.
Key Features
Six details that define the FXB02-16cross.
350W Brushless, 30-50 Nm
The 36V 350W brushless motor lives in the rear hub and delivers 30-50 Nm of torque, enough for smooth acceleration and confident climbs with no chain to oil or tension. Power arrives in a linear way that keeps the ride smooth from the first push.
Three Speed Settings
Three settings let the rider customise the pace: leisurely cruising for the learning laps and more exhilarating running for open ground. The range of pace is the feature - the bike meets the rider where they are on the day.
Central 5.0Ah Battery
The 36V 5.0Ah pack sits centrally in the frame, which keeps the centre of gravity low and the handling balanced. It charges in 1 to 3 hours for 10 to 30 km of range, enough for daily loops or a weekend adventure.
Disc Brakes, Real Stopping
The disc brake system enhances stopping power with a bite that modulates instead of grabbing. Young riders learn to feather a lever rather than fear it, the braking habit every later bike will thank them for keeping.
Aluminium Alloy Frame
The aluminium alloy frame keeps the FXB02-16cross light enough to manoeuvre easily while holding the durability a season of riding demands. It is the balance of weight and strength the platform is known for.
Built for the Daily Loop
Ten to thirty kilometres per charge covers daily commutes to school and weekend adventures alike, with 16-inch wheels holding the platform steady across varied terrain. It is a bike sized for the everyday, not just the showcase.
Overview
A 16-inch balance bike with 350W power, 3 speed settings, disc brakes and a central 36V battery.
The HKM-5416147 is the FXB02-16cross, a 16-inch electric balance bike that balances functionality with aesthetic appeal. A 36V 350W brushless motor delivers 30-50 Nm of torque through three speed settings, the disc brake system provides reliable stopping power, and the central 36V 5.0Ah battery charges in 1 to 3 hours for 10 to 30 km of range. The aluminium alloy frame keeps the bike light and durable, the low-mounted pack keeps the handling balanced, and 16-inch wheels hold the line across varied terrain. It is a ride built for both the daily loop and the weekend adventure, fun and eco-friendly in the same breath.
Three Settings, One Smooth Pull
Torque that arrives like a hand on the back.

The 350W brushless hub delivers its 30-50 Nm smoothly, and the three speed settings decide how much of it the rider meets. Cruise low, run high, and keep the pace matched to the day.
Full Specifications
Everything worth knowing, in one table.
Why Torque Matters More Than Top End
30-50 Nm is what the rider actually feels.
Spec sheets chase top speed, but riders live in the torque curve. The FXB02-16cross delivers 30-50 Nm from its 350W brushless hub, which is the number that decides whether a climb feels like an adventure or a walk, and whether acceleration feels like a hand on the back or a shove. Torque paced through three speed settings turns that pull into something the rider can grow with. Around the motor sits a central 36V 5.0Ah battery charged in 1 to 3 hours, disc brakes that modulate instead of grabbing, and an aluminium alloy frame that keeps the whole platform light. The range of 10 to 30 km per charge covers the daily loop, and the low-mounted pack keeps the balance honest through every setting.
What’s in the Box
What arrives in the box, ready to build.
1 x 16-Inch FXB02-16cross
Frame, fork and wheels come fitted from the box
1 x 36V 5.0Ah Battery
Seated in the central mount, matched to the charger
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-5416147
Six reasons families pick the HKM-5416147.
A Pace for Every Stage
Three speed settings mean the bike is never too slow to teach or too quick to trust. The low setting carries the learning, the higher settings carry the reward, and the pace always matches the day.
Torque That Feels Right
The 30-50 Nm from the 350W brushless hub makes climbs manageable and acceleration smooth. It is the number the rider feels on every ride, not just the one on the sheet.
Brakes That Build Trust
The disc brake system modulates instead of grabbing, so riders learn to feather a lever rather than fear it. That trust carries into every faster bike they ride later on.
Balanced by Design
The central 36V pack keeps the centre of gravity low, so the bike feels planted when the power arrives. Weight in the right place is the quiet feature behind confident handling.
No Chain, No Fuss
The brushless motor drives from the rear hub, so there is no chain to oil, tension or snag. The weekly walkaround covers tires, brakes and battery contacts and takes minutes.
Range for Real Rides
Ten to thirty kilometres per charge covers the school run and the weekend loop alike, and the 1-to-3-hour charge fits inside a lunch break. It is range sized for the everyday.
Frequently Asked Questions
Straight answers about the HKM-5416147.
What ages and heights does the HKM-5416147 fit?
The FXB02-16cross suits riders moving up from smaller balance bikes, with 16-inch wheels and an aluminium alloy frame sized for young riders. The honest check is both feet flat while seated with knees slightly bent and hands reaching the bars at comfortable extension. Because this bike carries 350W and three speed settings, also confirm the rider can work the brake lever smoothly before moving up through the settings.
How do the three speed settings work?
Three settings pace the bike through the 350W brushless hub, from leisurely cruising to more exhilarating running. Start low on flat, open ground until the throttle and the brake lever are under smooth control, then move up one setting at a time on ground with clear sight lines. Shift while stopped or coasting on flat ground, so the change in pull never arrives mid-corner.
How far does it go and how fast does it charge?
A full charge covers 10 to 30 km depending on terrain, rider and setting. The central 36V 5.0Ah pack refills in 1 to 3 hours at any wall socket. For the healthiest battery life, charge indoors at room temperature on a hard surface, unplug once the indicator shows full, and bring the pack inside on cold days before judging its charge.
What does 30-50 Nm of torque mean in practice?
Torque is the twist that moves the bike from still, and 30-50 Nm is what makes climbs feel manageable and acceleration feel smooth rather than spiky. Paired with the three speed settings, the pull scales to the rider and the terrain. In everyday terms: hills stop being walk zones, and the motor assists the way a hand on the back would - present, steady and predictable.
What assembly and upkeep are involved?
Assembly covers the handlebar, seat height and battery seating, with the supplied hex keys and the manual. Beyond that: tire pressure weekly, a brake squeeze test before rides and a wipe-down after dusty ones. The 350W brushless drive lives in the rear hub, so there is no chain to oil or tension all season. The whole routine fits a weekend morning.
Why does the battery position matter?
The 36V pack sits centrally and low in the frame, which keeps the centre of gravity where handling is best. The bike stays upright and predictable when the power arrives, and the frame lines stay clean. Rack-mounted or high-mounted batteries do the opposite, which is why those bikes feel top-heavy in corners. Central and low is the arrangement the FXB02-16cross is built around.
Quick Troubleshooting
When the HKM-5416147 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 twenty minutes 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.
The range keeps shrinking
Compare riding style before blaming the pack, because hills and the higher settings use far more per kilometre than 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 cycle and retest the same loop, and log the loop you retest on before replacing anything.
The brake lever feels soft
A soft lever usually means the cable has stretched or the pads have glazed, both of which are adjustments rather than failures. Check that the rotor is clean and true first, then follow the manual for cable tension. If the lever still reaches the bar with the cable set, note when the feel changed and contact support. Stay in the low setting until the firm bite returns.
The charger light never turns green
Confirm the wall socket with another device, then reseat the charger plug at both ends. Check the pack mount contacts for grit and charge indoors at room temperature, because cold packs refuse a full cycle. If the indicator still never completes, stop forcing cycles and contact support with a note of how long charging has taken recently. Do not leave a stalled pack on the charger unattended overnight.
The motor cut out mid-ride
A pack running low or hot will step back before it dies, so start with a full charge and a cool-down. Check the throttle connector for a half-seated plug and confirm the speed setting has not been nudged. If cutouts continue on flat ground in the low setting with a full, cool pack, note the setting in use and contact support. Log when it happens: climbs point to the pack, flat-ground cutouts point to the controller.
The power feels weaker than usual
Start with the basics: tire pressure, pack charge and the selected speed setting, because each one masks as motor trouble. Next check the throttle connector for a half-seated plug. Cold packs also deliver less until they warm. If the pull stays weak in every setting with a full, warm pack and correct pressures, note the conditions and contact support for a deeper look at the controller.
Service & Policies
Coverage that rides every street 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-5416147.
The HKM-5416147 is a powered 16-inch balance bike with three speed settings, so a certified helmet is mandatory before every ride, with closed shoes and snug laces completing the kit. Start in the low setting on flat ground until the rider has the brake lever and the throttle under smooth control, with an adult approving every change of pace. Confirm the battery is fully latched before each ride, squeeze the lever to feel the bite, and check the axle hardware for torque. Keep fingers, laces and loose clothing clear of the rear hub and rotor while powered, and let hot parts cool after long sessions. Charge the 36V pack indoors at room temperature on a hard surface, unplug once the indicator shows full, and never carry a passenger.
HKM-5416147 - 16-inch FXB02-16cross electric balance bike with a 36V 350W brushless motor delivering 30-50 Nm of torque, three speed settings, a disc brake system and a central 36V 5.0Ah battery charging in 1 to 3 hours. Read the manual before first use. Nothing here is safety certification advice.
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Every part warranted for two full years.
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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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Available 24 hours a day, 7 days a week