Balance Bikes >>
HKM-9610451 16-Inch Electric Balance Bike for Kids with 350W Brushless Hub Motor, Dual Speed Modes and Front and Rear Disc Brakes
HKM-9610451
The FXB02-16: Dual Speed, Disc Brakes
The HKM-9610451 is the Fish Extreme FXB02-16, a 16-inch electric balance bike built on a lightweight aluminium alloy frame with a 350W brushless rear hub motor. Two speed modes pace the ride at 15 and 30 km/h, and the removable 36V lithium battery charges in under an hour for 15 to 20 km of range. Disc brakes front and rear bring controlled stops, the seat sits at 54 cm, and the whole bike weighs 12.0 kg with the battery fitted. It is the steady dual-speed platform young riders grow into, honest about its job and easy for families to live with.
Key Features
Six details that define the FXB02-16.
Two Speeds, 15 and 30 km/h
The dual-speed setup gives one bike two lives: a calm 15 km/h training mode for first laps and a 30 km/h mode for riders who have earned it. The switch stays under adult control, so the pace moves up when the skills do, not before.
350W Brushless Rear Hub
The 350W brushless motor lives in the rear hub and pulls smoothly from a standstill with no chain to oil or tension. Power arrives in a linear way that keeps first rides calm, and there is no external drive hardware to snag or maintain.
Removable 36V Lithium Pack
The 36V lithium battery unclips from the frame and charges at any wall socket in under an hour, or it charges in place on the bike. Fifteen to twenty kilometres of range per charge covers a full session of neighbourhood laps and park loops.
Disc Brakes, Both Wheels
Disc brakes front and rear give real stopping power with a bite that modulates instead of grabbing. Young riders learn to feather a lever rather than fear it, which is the braking habit every later bike will thank them for keeping.
Aluminium Alloy Frame
The aluminium alloy frame keeps the FXB02-16 at 12.0 kg with the battery fitted, light enough for adults to lift into a boot and stable enough to stay grounded under way. It shrugs off the knocks of outdoor play season after season.
A Seat Set at 54 cm
With the saddle at 54 cm and 16-inch wheels underneath, the FXB02-16 fits the riders who have outgrown smaller balance bikes. The honest fit check is both feet flat while seated with knees slightly bent and hands reaching the bars comfortably.
Overview
A 16-inch dual-speed balance bike with disc brakes and a removable 36V battery.
The HKM-9610451 is the Fish Extreme FXB02-16, a 16-inch electric balance bike that treats learning to ride as a progression rather than a leap. A 350W brushless rear hub motor drives two speed modes paced at 15 and 30 km/h, disc brakes on both wheels deliver controlled one-finger stops, and the removable 36V lithium battery charges in under an hour for 15 to 20 km of riding. The aluminium alloy frame keeps the whole bike at 12.0 kg, the 54 cm saddle suits riders moving up from smaller bikes, and the dual-speed switch keeps the top end under adult control until the rider earns it. It is a bike built to make the first powered season a confident one.
Two Speeds, One Switch
Dual speed modes under adult control.
The FXB02-16 paces the ride at 15 or 30 km/h, and the switch belongs to the adults. Start low on flat ground until throttle and both brake levers feel smooth, then move up one mode at a time as the rider earns it.
Full Specifications
Everything worth knowing, in one table.
Why Two Speeds Beat One
A pace for the lesson and a pace for the reward.
A single-speed bike asks a young rider to handle everything at one pace, which is why the FXB02-16 carries two. The 15 km/h mode is where the lessons live: throttle control, both brake levers, looking up the path. When those habits hold, the 30 km/h mode turns the same streets into a reward instead of a risk, and the jump between the two is small enough to feel like progress rather than a shock. Around the modes sits a 350W brushless rear hub that pulls smoothly with no chain to maintain, disc brakes at both wheels, and a removable 36V pack that charges in under an hour. The aluminium alloy frame carries it all at 12.0 kg, sized through a 54 cm saddle and 16-inch wheels for riders moving up from smaller balance bikes.
What’s in the Box
What arrives in the box, ready to build.
1 x 16-Inch FXB02-16 Bike
Frame, fork and wheels come fitted from the box
1 x 36V Lithium Battery
Seated in the mount and 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-9610451
Six reasons families pick the HKM-9610451.
A Pace for Every Lesson
Two speed modes mean the bike is never too slow to teach or too fast to trust. The 15 km/h mode carries the learning, the 30 km/h mode carries the fun, and the adults hold the switch.
Brakes That Build Trust
Disc brakes front and rear modulate 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.
Charging That Fits Real Life
The removable 36V pack charges in under an hour at any wall socket, so a forgotten charge never ruins a session. Fifteen to twenty kilometres of range covers a full afternoon.
No Chain, No Fuss
The 350W 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.
Light Enough to Live With
At 12.0 kg with the battery fitted, the FXB02-16 lifts into a boot without drama and stays stable under way. The aluminium alloy frame shrugs off the knocks of outdoor play.
Sized for the Step Up
The 54 cm saddle and 16-inch wheels fit riders who have outgrown smaller balance bikes, and the dual-speed setup means the same bike stays right as confidence grows.
Frequently Asked Questions
Straight answers about the HKM-9610451.
What ages and heights does the HKM-9610451 fit?
The FXB02-16 suits riders who have outgrown smaller balance bikes, with a 54 cm saddle on 16-inch wheels and a 12.0 kg overall weight. The honest check is both feet flat while seated with knees slightly bent and hands reaching the bars at comfortable extension. Because the top mode reaches 30 km/h, also confirm the rider can work both brake levers with one finger before any mode change, and keep the switch under adult control for the first weeks.
How do the two speed modes work?
The modes pace the bike at 15 and 30 km/h through the 350W brushless rear hub, and the switch belongs to the adults. Start at 15 km/h on flat, open ground until the throttle and both brake levers are under smooth control, then move up one mode at a time on ground with clear sight lines. The jump between modes is deliberately small, so it feels like progress rather than a shock, and the top mode stays earned rather than assumed.
How far does it go and how fast does it charge?
A full charge covers 15 to 20 km of mixed riding, which is a long afternoon of neighbourhood laps. The removable 36V pack unclips from the frame and charges at any wall socket in under an hour, or it charges in place on the bike. 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.
Do the disc brakes need maintenance?
Very little. The system is mechanical and sealed at the lever, so there is nothing to lubricate, and pad wear at this power level is slow. Check the lever feel weekly: a bite well before half travel means all is well. Keep the rotors clean with isopropyl alcohol after muddy rides, because a firm lever with a clean rotor is the healthy baseline. If the lever ever feels soft or travels to the bar, stop riding and contact support.
What assembly and upkeep are involved?
Assembly covers the handlebar, saddle 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, and the manual walks through each step with the tools supplied in the box.
Is it heavy? Can adults move it easily?
The FXB02-16 weighs 12.0 kg with the battery fitted, which most adults can lift into a boot or carry up steps without drama. The aluminium alloy frame keeps the weight down without giving up the stability young riders need, and the removable battery shaves the pack weight off whenever the bike travels without it. At this weight the bike also stays grounded and planted while riding, which matters more than a few hundred grams saved.
Quick Troubleshooting
When the HKM-9610451 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, and make the click part of the pre-ride routine.
The range keeps shrinking
Compare riding style before blaming the pack, because hills and the 30 km/h mode use far more per kilometre than cruising at 15. 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. Log the loop you retest on, because different routes make different numbers, and retest 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 off the 30 km/h mode until the firm bite returns, because brakes are 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 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 while you wait to retest.
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 mode switch has not been nudged. If cutouts continue on flat ground in the low mode with a full, cool pack, note the mode in use and contact support. Log when it happens: climbs point to the pack, flat-ground cutouts point to the controller.
The top speed will not reach 30 km/h
First confirm the mode switch is actually in the high setting, because the most common cause is the bike still in the 15 km/h training mode. Next check tire pressure, since soft tires cap real speed long before the motor does. A low battery also steps the pace back to protect itself. If the bike still tops out short in the high mode with fresh tires and a full charge, note the numbers and contact support.
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-9610451.
The HKM-9610451 is a 16-inch electric balance bike with a 30 km/h top mode, so a certified helmet is mandatory before every ride, with closed shoes and snug laces completing the kit. Start in the 15 km/h mode on flat ground until the rider has both brake levers and the throttle under smooth control, with an adult approving every mode change. Confirm the battery is fully latched before each ride, squeeze both levers to feel the bite, and check the axle hardware for torque. Keep fingers, laces and loose clothing clear of the rear hub and rotors 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-9610451 - 16-inch Fish Extreme FXB02-16 electric balance bike with a 350W brushless rear hub motor, two speed modes of 15 and 30 km/h, disc brakes front and rear, a removable 36V lithium battery charging in under an hour and an aluminium alloy frame at 12.0 kg. Read the manual before first use. Nothing here is safety certification advice.
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