HKM-8874835 Mini 16 x 4.0 Fat Tire E-Bike Fits Riders from 5 ft 0 in with 720Wh plus 6 Speeds and a 264 lb Load Rating

750W · 720Wh · 37 mi · 21.7 mph · 6-speed · disc brakes · 264 lb load · 16 x 4.0

Removable Pack Dual Rear Coils for Teens and Shorter AdultsSmall Wheels Big Weekend Energy

A compact fat tire electric bike with a 750W peak brushless motor in the rear wheel, a removable 48V 15Ah pack worth 720Wh slung in the frame, and 16 x 4.0 tires under a carbon steel mini frame. A front fork and dual rear coil shocks, disc brakes at both wheels, a Shimano six-speed drivetrain and three ride modes, all read from an LED dash with a horn. We quote 37 miles per charge and 21.7 mph top speed, with a 264 lb load rating and a 74.3 lb bike weight.

The mini moped format is the point: a compact carbon steel frame on 16-inch wheels that a teenager or a shorter adult can stand over, walk across a lawn and lift into a dorm hallway without a second person. The poster calls it campus tested lift-and-go, and that is the honest use case: the bike is small enough to live by a desk and still carry a rider up to the 264 lb rating. Two colors, orange and black, and a saddle height near 26 inches keep the reach short.

The trade is the wheel size. Sixteen-inch wheels with four-inch casings roll over broken pavement and dirt far better than a scooter, but they will not carry a full-size adult as calmly as a 26-inch bike. At a listed 21.7 mph it wants a helmet and a look at local rules before it mixes with traffic.

At a Glance

• 750W Peak Motor — Brushless, 60 N·m, rear wheel
• 720Wh Removable Pack — 48V 15Ah, lifts out of the frame
• 37 Miles Per Charge — The careful number we quote
• 21.7 mph Top Speed — As printed on the poster
• 16 x 4.0 Fat Tires — Small wheels, wide contact patch
• Front Fork And Dual Coils — Suspension at both ends
• Disc Brakes Both Wheels — Rotor at the front and rear
• Shimano 6 Speed — Derailleur, thumb shifter
• Three Ride Modes — Throttle, pedal assist, pedal
• 264 lb Load Capacity — 120 kg rating, 74.3 lb bike
• LED Dash And Horn — Speed, battery, assist, mileage
• Orange And Black — Two finishes as listed

Mini Frame and Stopping Power

The frame is carbon steel in a compact mini layout, with the pack slung in the main triangle and a low step-over that suits riders from five feet tall. Steel tolerates the pull of a 750W motor and the daily knock of a bike parked in a hallway, and the short wheelbase keeps steering quick.

Up front is a suspension fork over the 16-inch wheel, and out back sit two coil shocks with red springs under the saddle. The pair exists because small wheels feel more of the road; the coils take the edge off roots and curb cuts so the rider is not on the pegs for every bump.

Braking is disc rotors at both wheels, with a lever on each side of the bars. Discs keep their bite when the rims pick up mud or water, which matters on a bike meant for gravel paths as well as pavement, and they want a quick pad check rather than a cable adjustment.

• Frame: carbon steel, compact mini layout
• Suspension: front fork and dual rear coil shocks
• Brakes: disc, front and rear
• Drivetrain: Shimano 6-speed derailleur
• Tires: 16 x 4.0 fat casing
• Lighting: round LED headlight with horn

Fitted as shipped: the round LED headlight with its halo ring, front and rear fenders, platform pedals and the LED dash with the horn button. The bars carry the throttle, the Shimano shifter and the mode button within thumb reach.

750W Peak Motor and the Removable Pack

The motor is a 750W peak brushless unit in the rear wheel, quoted at 60 N·m of torque and good for 30 degree climbs on the poster. It pulls away from a stop clean on throttle alone, and the Shimano six-speed drivetrain behind it means the pedals are a real fallback when the pack runs flat. The listed top speed is 21.7 mph, which is quick for a 16-inch bike and the reason we keep saying helmet.

The pack is 48V 15Ah, worth 720Wh, and it lifts out of the frame so it can be charged at a desk or in an apartment rather than next to the bike. Charging from empty takes four to six hours. We quote 37 miles per charge as the conservative span; the posters print 50 miles on throttle and 70 miles on pedal assist, and the source page claims up to 56, so treat 37 as the number a plan holds to.

The LED dash shows the energy bar, speed, the pedal-assist level and odometer mileage at a glance, and the horn sits on the right side of the bars. The pack carries an IP54 rating against splashes and is built to UL 2849, so a wet path does not end the ride, but a pressure washer at the connectors still will.

Campus Runs and Weekend Trails

This bike is built for teens and shorter adults, riders from five feet tall up, and the poster's campus tested label is the right frame: dorm runs, weekend trails and neighborhood loops where a full-size bike is more machine than anyone needs. It is a second bike, not a touring rig.

The 16 x 4.0 fat casings are the other half of the story: the wide contact patch grips gravel and grass, and the small wheel keeps the whole bike light enough to lift over a curb, and the tread clears mud.

• Campus and neighborhood loops
• Weekend trails and beach paths
• Riders 5 ft 0 in and up
• Storage where a full-size fat bike will not fit
• Not for stairs or a roof rack

What's in the Box

Partially assembled on arrival: fit the front wheel, the handlebar and the pedals, then torque-check every bolt and charge the pack before the first ride. Budget 30 to 45 minutes, then recheck the axle nuts and the bars after the first ten miles.

Color and Finish

Two finishes come off the same line: orange and black. The orange bike pairs a bright frame with black fork lowers, black rims, black fenders and a black saddle, and the dark hardware lets the frame color do the talking. The black bike hides road grime better than bright paint.

The wear points are the saddle edges where a bag rubs, the chainstay where the chain slaps, and the fork stanchions, which want a wipe after a wet ride.

Battery Care and Maintenance

One full charge before the first ride, then keep the 720Wh pack inside the 20 to 90 percent band for daily use and take it to full once a month. Charge indoors at room temperature, keep the charge port cover shut between sessions, and store the pack near half charge if the bike will sit for a month.

Each ride starts with a tire pressure check and a squeeze of both brake levers. Disc pads want a look every few hundred miles, and the six-speed chain wants a wipe and a drop of lube so the shifts stay clean. IP54 covers splashes, not hoses: rinse the frame with a damp cloth, never a pressure washer near the connectors, and dry the bike off before it spends a damp night in a shed.

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-8874835 · compact fat tire electric bike · 750W peak brushless motor with 60 N·m of torque · removable 48V 15Ah pack worth 720Wh · 37 miles per charge as the conservative span · 21.7 mph top speed · four to six hour charge · 16 x 4.0 fat tires · carbon steel mini frame · front fork and dual rear coil shocks · disc brakes front and rear · Shimano six-speed drivetrain · three ride modes: throttle, pedal assist and pedal · LED dash with energy bar, speed, assist level and mileage · round LED headlight with horn · UL 2849 and IP54 · 264 lb load rating · 74.3 lb bike weight · orange and black · riders from five feet tall · campus runs, dorm loops and weekend trails rather than highway miles