HKM-9235283 Dual Hub Fat Tire Electric Dirt Bike Throws 2000W at a 1200Wh Tank Pack for up to 70 Miles of Range

2000W · 1200Wh · up to 70 mi · 20 in · single or dual drive · 330 lb load · Shimano 7

Hydraulic Discs Dual Coil Shocks and Tank Pack for City and TrailOne Switch Two Motors All Weekend

A dual motor fat tire electric dirt bike with a 2000W brushless hub in each wheel, a removable 48V 25Ah tank pack worth 1200Wh, and knobby 20-inch tires over hydraulic disc brakes. A suspension fork and dual rear coil springs soak up the broken ground, and a Shimano seven-speed drivetrain with a twist-grip throttle keeps the ride flexible. Rated up to 70 miles per charge and a 31 mph top speed, with turn signals, an electronic horn and an LCD on the bars.

The format is a mini moped with pedals: a long banana seat, tall bars, a round LED headlight up front and a tank box sitting in the frame between your knees. That tank box is the 25Ah pack, lockable and liftable, and it is where the up to 70 mile claim comes from. The two hub motors split the work between the wheels, and the switch on the bars runs the rear alone on dry pavement or both hubs together when the ground turns soft.

The trade is attention. A dual-motor bike with fat tires is quick and thirsty under hard throttle, and 31 mph wants a helmet and a look at local rules before it mixes with traffic. Keep the pack charged and the chain clean, and it is a dependable runabout for city streets, gravel paths and sandy lots alike.

At a Glance

• 2000W Dual Motors — A hub in each wheel, brushless
• 1200Wh Tank Pack — 48V 25Ah, removable and lockable
• Up to 70 Miles — Maker max figure per charge
• 31 mph Top Speed — 50 km/h as listed
• Single or Dual Switch — Rear only or both hubs, your call
• Hydraulic Discs — Red calipers front and rear
• Dual Coil Rear — Suspension fork up front too
• 20 x 4.0 Fat Tires — Knobby casings for loose ground
• Shimano 7 Speed — Thumb shifter plus twist throttle
• LCD Display — Speed, battery and assist level
• Turn Signals and Horn — Street lighting front and rear
• 330 lb Load Rating — 150 kg platform rating

What the Second Motor Changes

Two hub motors change the character of a fat tire bike. Driving the front wheel as well as the rear keeps the bike straight in sand, wet grass and loose gravel, where a rear-only machine breaks the back tire free and steps sideways under power. Traction is what the second motor buys.

It also splits the load. Two motor shells shedding heat are less likely to end a long climb smelling hot than one shell doing everything, and each controller sees less current. On a bike built for 31 mph that margin is the one that matters.

The switch on the bars selects single or dual drive. Run the rear hub alone for dry pavement and better range, or bring the front in when the surface gets loose. It is a real control, not a badge, and it changes how the bike behaves.

• Front and rear hub motors
• 2000W combined output
• Single or dual motor switch
• Brushless drive with twist throttle
• Traction on sand, grass and gravel
• Two shells share the heat load

Front drive does alter steering feel slightly under power, and the frame keeps that from becoming vagueness at speed. Two controllers mean more wiring to keep clean and dry, which is the honest cost of the layout.

The Tank Pack and the Range Story

The pack is 48V 25Ah, worth 1200Wh, and it lives in the tank box on the frame rather than hidden in a tube. The box locks with a key and lifts out, so the pack charges at a desk instead of next to the bike, and the maker also lets you charge it in place. A management system balances the cells and guards against overdraw and over-discharge, and the gauge on the pack shows what is left.

We quote up to 70 miles per charge, the maker figure for the 25Ah pack, which assumes a light rider on flat ground at low assist. Hard throttle, hills, cold weather and a full load all cut into it, sometimes by half, so treat 70 as an upper bound rather than a promise or a plan. Filling the pack from empty takes about six to seven hours on the included charger.

The bars carry the working parts: an LCD with speed, battery level and assist setting, a Shimano thumb shifter for the seven gears, a twist-grip throttle, and the pad that runs the lights, the turn signals and the electronic horn. Everything the ride needs sits under the rider's hands. Acceleration is smooth from a standstill.

A Moped Frame for City and Trail

The frame is a welded moped-style mini: banana seat, tall bars, and the tank box up top. A suspension fork works the front wheel and two coil springs sit under the seat, so broken pavement gets filtered instead of passed to the rider. Hydraulic discs at both ends park it from 31 mph.

The 20 x 4.0 knobby tires are the other half of the story, with a wide contact patch that floats over soft ground and a tread that bites into dirt and sand where a street tire would skate. The versatility covers most riding needs.

• City streets and bike paths
• Sandy lots and gravel shoulders
• Loose ground with both hubs running
• Evening runs with the lights and signals
• Not for stairs or a roof rack

What's in the Box

The bike arrives partially assembled: fit the front wheel, the handlebars and the pedals, then torque-check every bolt and charge the pack before the first ride. Budget 30 to 45 minutes for the job. Recheck the axle nuts and the bars after the first ten miles.

Color and Finish

Two finishes ship: a black frame with red accents on the battery box and the shock ends, and a green frame with the same red hardware and white stripes on the tank box. The round headlight, the black rims and the knobby tires keep both looks grounded in dirt-bike territory.

The wear points are the fork stanchions and the chainstay, which want a wipe after wet rides, and the seat corners where a bag rubs the finish.

Battery Care and Maintenance

Give the pack one full charge before the first ride, then keep it near the middle of its band for daily use and top it off now and then so the cells stay balanced. Charge indoors with the supplied charger, unplug when the light turns green, and store the pack around 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. Hydraulic pads want a look monthly, the seven-speed chain wants a wipe and a drop of lube, and the coil springs want their sag checked now and then. Keep the axle nuts tight, wipe the frame after wet rides, and never aim a pressure washer at the connectors or the charge port. A gritty chain eats range before the pack does.

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-9235283 · dual motor fat tire electric dirt bike · 2000W from two brushless hubs with a single or dual switch · removable lockable 48V 25Ah tank pack worth 1200Wh · up to 70 miles per charge, maker figure · 31 mph top speed · six to seven hour charge on the included charger · 20 x 4.0 knobby fat tires · moped-style frame with banana seat · suspension fork and dual rear coil springs · hydraulic disc brakes front and rear · Shimano seven-speed derailleur and twist-grip throttle · LCD display with speed, battery level and assist setting · LED headlight, tail light and turn signals · electronic horn · 330 lb load rating · black and green finishes · city streets, gravel paths and sandy lots