HKM-2479315 16 Inch Fat Tire E-Bike Runs a 750W Hub With 70 Nm on 4.0 Tires and a 48V 15Ah 720Wh Pack With Six Speeds

750W · 720Wh · 16 x 4.0 · 74.3 lb · kids size · 3 ride modes · LED dash · 6-speed · 264 lb load

A Low Bench and Soft Springs for the Youngest New Rider Out ThereAn Orange Frame and First Freedom

A small 16-inch fat bike with a 750W hub, 70 Nm of torque and a 48V 15Ah pack worth 720Wh in the frame. Twin rear coil shocks, a short-travel fork, mechanical discs at both ends, a six-speed drivetrain and knobby 16 x 4.0 tires. It weighs 74.3 lb, carries 264 lb, and it runs three modes: pure electric, pedal assist and bicycle. The frame is a compact orange loop with a cage rack at the back, and the LED dash reads speed, assist level and odometer.

The frame is a small moped shape in gloss orange with a black battery box in the middle and a bench that runs back over the rear wheel. A steel cage wraps the back of the frame and doubles as a rack, and the headlamp is a round unit in a black cage housing on the fork crown. The proportions are the point: it is short, low and light enough for a younger rider to handle.

Two coil shocks sit under the bench at the rear and a short fork handles the front, which is more travel than a 16-inch bike usually gets. That is what lets it run at low tire pressure on gravel without the rider feeling every stone, and it is the difference between a toy and something that can follow an adult down a fire road.

At a Glance

• 750W Rear Hub — 48V, 70 Nm of torque
• 48V 15Ah Pack — 720Wh in the frame
• Three Modes — Electric, assist and bicycle
• 16 x 4.0 Tires — Knobby casing on spoked rims
• Twin Rear Shocks — Plus a short-travel fork
• Mechanical Discs — Front and rear, cable actuated
• 6-Speed Drivetrain — Derailleur at the rear wheel
• 74.3 lb — Light for a fat e-bike
• 264 lb Load — Rated carry weight
• LED Dashboard — Speed, PAS, battery and odometer
• Cage Headlamp — Round unit in a black housing
• Orange Frame — Gloss orange with a black box

Small Frame and Sixteen Inch Wheels

The frame is a compact loop in gloss orange, with a black battery box filling the space between the top and down tubes and a bench that runs from the seat tube back over the rear wheel. The rear of the frame is a steel cage that doubles as a rack, and the headlamp sits in a black caged housing on the fork crown.

The wheels are 16 x 4.0 knobbys on spoked rims with orange hubs. Sixteen inches is the smallest fat tire that still floats on gravel and sand, and it keeps the standover height low enough for a shorter rider. The trade is that a pothole arrives sooner, so you ride the surface rather than over it.

Suspension is a short-travel fork up front and two coil shocks under the bench at the rear, both with exposed springs you can adjust at the collar. Brakes are mechanical cable discs front and rear, which are simple to service and adequate at the speeds this bike runs. The drivetrain is a six-speed derailleur.

• Frame: compact loop, gloss orange
• Battery: 48V 15Ah, in the frame
• Wheels: 16 in spoked, 4.0 knobby
• Fork: short travel
• Rear: two coil shocks under the bench
• Brakes: mechanical cable disc

Fitted as shipped: the caged headlamp, front and rear fenders, the rear cage rack, an LED dashboard on the bars, a kickstand and the pedals. The dash reads speed, assist level, battery bar and odometer, and the bars carry the throttle, the mode switch and the brake levers.

750W and Three Ride Modes

The motor is a 48V 750W rear hub with 70 Nm of torque, which on a 16-inch wheel is a lot of pull for a bike that weighs 74.3 lb. The throttle works from a standstill, and the six-speed drivetrain means a rider can pedal with the motor rather than against it when the battery is low.

Three modes cover how it gets used. Pure electric runs on the throttle alone, pedal assist adds to your pedalling, and bicycle mode turns the power off entirely. The poster quotes 50 miles in electric mode and 70 in assist; the listing quotes 20 to 37 miles, so plan on the lower range and treat the poster figures as best cases on flat ground.

The pack is 48V 15Ah, 720Wh, and it sits in the frame rather than on a rack, which keeps the weight between the wheels where a shorter rider can manage it. Charge it through the port on the frame, and plan on an overnight charge rather than a quick top-up.

Who It Fits and How It Rides

The bench is low and the bars are high, which is what makes the bike manageable for a younger or shorter rider: both feet reach the ground and the reach to the bars is short. The 264 lb load rating covers a teenager with a pack and most adults. It is not a bike for a tall rider, who will find the cockpit cramped.

On gravel, grass and packed dirt it is stable and the twin rear springs take the chatter, and the fat casing means it rolls over sand instead of digging in. On pavement the knobbys hum and the small wheels feel busy above 15 mph, so it is at its best on a campground loop or a fire road with an adult alongside.

• Campground loops and grass
• Gravel paths and packed dirt
• A first e-bike for a teenager
• Not for tall riders or long road rides

What's in the Box

Before the first ride: fit the front wheel and torque the axle, set the bars square to the fork, set the rear spring preload for the rider's weight, bed the cable discs in with ten firm stops and charge the pack. Budget 30 to 45 minutes, then check the brake cables and the axle nuts after the first ten miles.

Color and Finish

Gloss orange covers the frame and the cage rack, and black covers the battery box, fenders, bench, fork lowers, bars and rims. The hubs are anodized orange to match, and the headlamp housing is black. It is a two-colour scheme with one gloss surface and everything else satin.

Touch-up paint in gloss orange is available on request. The wear points are the cage rack where straps rub, the battery box where a shoe catches it and the frame loop above the pedals.

Battery Care and Maintenance

Charge between 20 and 90 percent for everyday use and take it to full about once a month. The pack lives in the frame, so charge it where the bike is stored and keep that spot above freezing. If the bike will sit for a month, leave it around half charge rather than full, and top it up every few weeks.

Check tire pressure before every ride at 15 psi on pavement and 8 on gravel, and check the spokes and axle nuts after the first 50 miles. The cable discs need the barrel adjuster turned as the pads wear, and the pads are a five-minute swap. Keep the chain oiled so the six gears shift, and wipe the fork legs after a wet ride.

Specifications

Frequently Asked Questions

Service and Policies

Coverage that lasts beyond the box. Orders ship free with a tracking number in 2 to 5 business days. From delivery, the product is protected for 180 days against manufacturing defects and transit damage, returnable within 30 days for a full refund, and covered by a 24-month parts-and-labor warranty on manufacturing defects. Four policies, one idea: ship it free, protect it for 180 days, take it back for 30, and stand behind it for two years.

HKM-2479315 · compact 16 inch fat tire electric bike · 48V 750W rear hub with 70 Nm · 48V 15Ah 720Wh pack in the frame · 20 to 37 miles listed range, with 50 and 70 mile poster figures for electric and assist modes · three ride modes, electric, pedal assist and bicycle · mechanical cable disc brakes front and rear · short-travel fork with two coil shocks under the bench · 16 x 4.0 knobby tires on spoked orange rims · 6-speed drivetrain · 74.3 lb with a 264 lb load rating · LED dashboard with speed, PAS and odometer · caged round headlamp, rear cage rack and fenders · gloss orange with black · charger in the box · UL listed · built for campgrounds, gravel and grass rather than long road rides