Mixed-Wheel Electric Off-Road Motorcycle
HKM-7120595 Electric Off-Road Motorcycle
The HKM-7120595 runs a 14 in front wheel and a 12 in rear - the classic trail-bike proportion, scaled down. The taller front wheel climbs over roots, ruts, and rock steps that would stop a small wheel dead, while the shorter rear keeps the drive compact and the gearing short. Power comes from a 2000 W mid-mounted motor fed by a removable 48 V 21 Ah pack (1008 Wh), good for 25-31 mi of trail and 31 mph (50 km/h) flat out. Adjustable suspension at both ends and hydraulic disc brakes complete an aluminum-framed machine built for off-road use.
2000 W Mid-Drive (3000 W Peak)48 V 21 Ah / 1008 Wh Pack31 mph Top Speed25-31 mi Range14 in Front / 12 in RearAdjustable SuspensionHydraulic Disc Brakes265 lb Load Capacity
Motor
2000 W
3000 W peak mid-mounted drive
Battery
48 V 21 Ah
1008 Wh removable lithium
Top Speed
31 mph
50 km/h in the highest mode
Range
25-31 mi
40-50 km per charge
Wheels
14 / 12 in
Front and rear off-road knobbies
Load Capacity
265 lb
120 kg rider plus gear
Overview
A mixed wheel package is a deliberate engineering choice, not a styling one. The 14 in front wheel has a larger rolling radius, so it meets an obstacle at a shallower angle and rides over it instead of stopping against it - which is exactly what you want from the end of the bike that finds the obstacle first. The 12 in rear keeps the swingarm short, the wheelbase manageable, and the effective gearing low so drive torque reaches the ground without a tall reduction.
The motor is 2000 W mid-mounted, peaking near 3000 W, driving the rear wheel through a chain. Mounting it in the frame instead of the hub keeps unsprung mass at the rear wheel low, and the rear shock can therefore follow rough ground rather than being overwhelmed by a heavy wheel. Torque is available from the first degree of throttle with no clutch, no gear selection, and nothing to stall halfway up a loose climb.
The 48 V 21 Ah pack stores 1008 Wh. That returns 25-31 mi (40-50 km) of typical trail riding - meaningfully longer if you ride in a lower power mode, meaningfully shorter if you spend the session pinned in sand. The pack is key-locked into the frame and lifts out for indoor charging, taking 8-10 hours from fully empty. A battery management system watches cell voltage, current, and temperature throughout.
The chassis is aluminum alloy, and both ends of the suspension are adjustable so the machine can be set for the rider rather than a notional average. Braking is hydraulic disc front and rear, which on loose ground matters less for outright power than for modulation - the ability to apply precisely the braking the surface will accept. At roughly 104 lb (47 kg) ready to ride, it is substantial enough to feel planted at speed and still manageable to load into a van.
Key Features
2000 W Mid-Mounted Motor, 3000 W Peak
The brushless motor is mounted low and central in the aluminum frame and drives the rear wheel by chain. 2000 W continuous with roughly 3000 W available in bursts gives strong, immediate drive out of corners and enough reserve for sustained loose climbs. Because the mass sits between the footpegs rather than out at the rear wheel, the machine turns and tracks better than a hub-drive layout of the same weight.
48 V 21 Ah Removable Lithium Pack (1008 Wh)
Just over a kilowatt-hour of usable energy, key-locked into the frame and removable for indoor charging. Expect 8-10 hours for a full charge from empty on the supplied charger. The battery management system protects against overcharge, over-discharge, short circuit, and out-of-range cell temperature, and cuts output before the pack can be run into damage.
Adjustable Front and Rear Suspension
Both ends can be tuned. Setting sag correctly for rider weight is the single biggest improvement most riders can make to how an off-road machine handles, and it is impossible on a bike with fixed springs. With the taller 14 in front wheel and a properly set fork, the front end tracks through braking bumps rather than skipping across them.
Hydraulic Disc Brakes, Front and Rear
Sealed hydraulic lines actuate both calipers. On dirt, control comes from modulation rather than raw stopping force, and hydraulics give a far finer relationship between lever pressure and braking effort than any cable system. They also stay consistent when wet and muddy and self-compensate as the pads wear.
Multi-Stage Power Modes
A handlebar selector limits how much of the 2000 W the controller will release. The lowest setting makes the machine genuinely calm - appropriate for a new rider, a confined area, or a first lap of an unknown trail. The highest releases the full 31 mph. Dropping a mode is also the simplest way to add range on a long day.
14 in Front and 12 in Rear Knobby Tires
Deep, widely spaced tread blocks dig into loose dirt and sand and shed mud instead of packing with it. Air-filled construction lets you tune pressure to the surface. The larger front tire carries the roll-over duty; the smaller rear puts a short, torque-friendly contact patch under the drive.
LED Headlight and Tail-Light
Both lights run directly from the main pack, so nothing separate needs charging and the beam does not fade as an accessory cell drains. Sessions that run past dusk do not have to be cut short, and the tail-light keeps you visible to other riders sharing a trail.
Off-Road Cockpit: Wide Bars, Long Seat, Serrated Pegs
A wide motocross handlebar gives the leverage needed to steer with your body weight, the long flat seat lets you move forward for climbs and back for descents, and serrated footpegs hold boot soles through wet and mud. The whole cockpit assumes you will ride standing as often as seated.
Full Specifications
Model
HKM-7120595 | Electric Off-Road Motorcycle
Frame Material
Aluminum alloy off-road frame
Motor
2000 W mid-mounted brushless motor, approximately 3000 W peak
System Voltage
48 V DC
Battery
48 V 21 Ah lithium-ion (1008 Wh), removable and key-locked
Charger
48 V smart charger, 100-240 V input
Charging Time
8-10 hours from empty
Battery Cycle Life
Approximately 800 charge cycles to 80 percent capacity
Top Speed
31 mph (50 km/h) in the highest power mode
Range Per Charge
25-31 mi (40-50 km), varies with terrain, rider weight, and power mode
Climbing Grade
Up to approximately 20 degrees
Power Modes
Multi-stage output selector on the handlebar
Final Drive
Chain drive from the mid-mounted motor to the rear wheel
Brakes
Hydraulic disc, front and rear
Suspension
Adjustable front fork and adjustable rear shock
Tires
Air-filled off-road knobby tires, 14 in front and 12 in rear
Wheels
14 in front rim and 12 in rear rim
Seat
Long flat off-road seat
Display
LCD readout: speed, battery level, and selected power mode
Throttle
Twist throttle on the right grip, proportional response
Lighting
LED headlight and tail-light powered by the main battery
Load Capacity
265 lb (120 kg) rider plus gear
Vehicle Weight
Approximately 104 lb (47 kg) including battery
Recommended Rider
Teen and adult riders; direct adult supervision for riders under 16
Certifications
CE, RoHS; battery cells UN38.3 tested
Battery, Range, and Charging
The 48 V 21 Ah pack stores 1008 Wh. On an off-road machine that converts into session time rather than commuting distance, because trail riding consumes energy in bursts - hard drive out of a turn, a loose climb, a short straight, then coasting. Mixed trail use typically returns 25-31 mi (40-50 km). Sustained full-power running in deep sand will cut that considerably; steady exploring in a lower power mode will beat it.
The pack unlocks with a key and lifts clear of the frame, so it can be charged on a bench indoors instead of requiring an outlet wherever the machine is parked. Budget 8-10 hours from fully empty. In cold below 40 F (4 C) the pack temporarily surrenders 10-20 percent of usable capacity and recovers as it warms - worth knowing before a winter session, because the shortfall reads as an early low-battery warning rather than a fault.
Tip: Let the pack cool for 20-30 minutes after a hard session before charging. Putting a hot lithium pack on a charger ages the cells faster than almost anything else in normal use.
For storage longer than a month, leave the pack at 30-70 percent charge and top it up every 4-6 weeks. Riders who run back-to-back sessions often keep a second pack so one is charging while the other is on the machine.
Daily Use & Care
- Check chain tension and lubrication before every session. On a mid-drive machine a loose chain can come off under power; an over-tight one wears sprockets and bearings.
- Set tire pressure cold for the surface and inspect the knobs and sidewalls for cuts after rocky rides.
- Wash mud from the frame, calipers, shock body, and fork lowers with a low-pressure hose. Never aim a pressure washer at the motor case, battery bay, or fork seals.
- Re-torque the axle nuts, triple clamp, handlebar clamp, and footpeg bolts after each of the first few rides, then check them weekly.
- Re-check suspension sag whenever rider weight or gear changes significantly; a setup that suited a summer session in light kit will be wrong in winter gear.
- Inspect brake pad thickness and rotor condition monthly. Off-road grit wears pads far faster than road use.
- Charge indoors at room temperature on a non-flammable surface and unplug once the charger indicator turns green.
What's in the Box
- 1 x HKM-7120595 electric off-road motorcycle, approximately 85 percent pre-assembled
- 1 x 48 V 21 Ah removable lithium battery pack
- 1 x 48 V smart charger with 100-240 V input
- 2 x Battery keys
- 1 x Toolkit with hex wrenches and axle spanner
- 1 x Pair of serrated footpegs (pre-installed)
- 1 x Set of plastics and fender hardware
- 1 x Illustrated user manual and assembly guide
Frequently Asked Questions
Is this road legal?+
No. The HKM-7120595 is an off-road recreational vehicle intended for private property and designated off-road trails. It is not configured or certified for use on public roads, sidewalks, or bike paths. Confirm local off-highway vehicle rules before riding anywhere you do not own or have permission to use.
Why a 14 in front wheel and a 12 in rear?+
The front wheel meets obstacles first, so a larger rolling radius there buys real capability - it climbs over roots and rock steps that would stop a smaller wheel. Keeping the rear at 12 in shortens the swingarm and the wheelbase and lowers the effective gearing, which puts drive torque to the ground without a tall reduction ratio. It is the same logic full-size trail bikes use.
How much assembly is required?+
The machine arrives approximately 85 percent assembled. You fit the front wheel, align and bolt the handlebar, install fenders and plastics, and check brake and chain adjustment. Budget 45-60 minutes with the supplied tools, and verify chain tension and all axle and clamp torque before the first ride.
What range should I actually plan for?+
Plan for 25-31 mi (40-50 km) of mixed trail riding. Continuous full power in sand or on sustained climbs can approach half of that; steady riding in a lower power mode extends it. Rider weight, tire pressure, and ambient temperature all move the figure.
How do I set the suspension up?+
Start with sag. With your riding gear on, sit on the machine and have someone measure how far the suspension compresses under your weight compared with fully extended; the manual gives the target figure. Adjust preload at both ends until you hit it, then ride the same section of trail after each further change so you can tell what the adjustment actually did.
Can it be ridden in the rain or through water?+
Light rain and wet trail are fine and the electronics are splash-resistant. Do not ride through water deep enough to reach the motor case or battery bay, and do not pressure-wash the machine - high-pressure water forces past seals that handle rain without any difficulty.
What maintenance does it need compared with a petrol dirt bike?+
Substantially less. There is no oil, no air filter, no spark plug, and no carburettor. The recurring jobs are chain tension and lubrication, tire pressure, brake pads, fastener torque, suspension sag, and keeping the fork seals clean. Everything else is inspection.
Does the battery come out for charging?+
Yes. It unlocks with the supplied key and lifts clear of the frame, so it can be charged indoors on a bench. Charging in place also works if that suits where you store the machine.
Service & Policies
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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.
CERoHSUN38.3 Battery1008 Wh PackHydraulic BrakesAdjustable SuspensionOff-Road Use
Why Choose the HKM-7120595
Trail-Bike Geometry, Compact Package
The 14/12 wheel split is what full-size trail machines use, scaled down. You get the roll-over benefit where it counts at the front without the wheelbase, seat height, and weight of a full-size bike - which is what makes this rideable on land where a big machine would be unwelcome or unmanageable.
Suspension You Can Actually Set
Adjustable front and rear means the machine can be matched to the rider rather than to an average. Correct sag transforms how a bike holds a line through braking bumps and how much grip the rear finds on a loose climb, and it costs nothing but a few minutes with a tape measure.
Twist and Go, No Clutch, No Gears
Full torque from zero rpm means no clutch to slip, no gear to choose, and nothing to stall on a technical section. New riders skip most of the coordination barrier; experienced riders spend their attention on the line instead of the drivetrain.
Quiet Enough to Keep Riding
An electric drive is a fraction of the noise of a two-stroke. That has practical value: private land near neighbours, early starts, and shared trails all stay viable when the loudest thing on the machine is tire knobs biting dirt.
No Fuel, No Oil, No Filters
The maintenance list drops to chain, tires, brakes, fasteners, and suspension. There is nothing to mix, nothing to drain, nothing to foul, and no warm-up before a session - switch it on and ride.
Sealed Where It Matters
Hydraulic brake lines that cannot ingest grit, a covered and locked battery bay, sealed electrical connectors, and a splash-resistant controller. After a muddy ride the routine is a low-pressure rinse, a chain lube, and a charge.
Controls & Indicators
Ignition Switch
Key or button switches the drive system on and off
Mode Selector
Handlebar switch steps through the available power modes
Twist Throttle
Right-hand grip; proportional response with no clutch or gear selection
Speedometer
Live speed on the LCD, switchable between mph and km/h
Battery Gauge
Segmented charge indicator on the display
Light Switch
Handlebar switch toggles the LED headlight and tail-light
Suspension Adjusters
Preload adjustment at the fork and rear shock to set sag for rider weight
Pre-Ride Safety Checklist
- Check chain tension and lubrication. On a mid-drive machine this is the most important single pre-ride item.
- Set tire pressure cold for the surface you plan to ride and inspect both tires for cuts or missing knobs.
- Squeeze both brake levers. They should firm up well before the grip, with no sponginess indicating air in the hydraulic line.
- Confirm the battery is seated and key-locked and that the display shows the state of charge you expect.
- Check the axle nuts, triple clamp, handlebar clamp, and footpeg bolts for torque, and rock the machine with the front brake applied to check for fork play.
- Confirm the suspension is set for your weight and gear before you leave, rather than adjusting it out on the trail.
- Select the lowest power mode and test the throttle at walking pace in a clear area before committing to a trail.
- Wear full off-road protective equipment: a DOT-compliant or off-road helmet, goggles, gloves, elbow and knee protection, long sleeves and trousers, and over-the-ankle boots.
Quick Troubleshooting
The motor does not respond to the throttle.+
Confirm the ignition is on and the display shows charge, the battery is key-locked in place, and neither brake lever is being held - the cut-off sensors disable drive while a lever is pulled. Check that a power mode above zero is selected. If an error code appears, note it and contact support.
The chain came off under power.+
Chain tension is the usual cause. Set it to the slack figure in the manual with a rider seated, and confirm the rear axle is square in the swingarm so the sprockets line up. Inspect both sprockets for hooked teeth and replace the chain and sprockets as a set if they are worn.
The front wheel deflects off roots instead of climbing them.+
Usually fork setup or tire pressure rather than the wheel. Check sag first - a fork set too stiff for the rider skips across obstacles rather than absorbing them - then drop a few psi from the front tire so the casing can conform to what it hits.
Range has dropped noticeably.+
Check tire pressure and how much of the session has been spent in the highest power mode. Cold weather temporarily reduces capacity as well. If the drop exceeds 30 percent in warm conditions after many charge cycles, the pack is approaching the end of its service life.
The brake lever feels soft or travels closer to the grip.+
Air in the line, a fluid leak, or worn-out pads. Stop riding and have the system inspected and bled. Compromised brakes on a descent are not something to work around.
The display shows an error code and the machine will not move.+
Switch the system off, wait 30 seconds, and switch it back on. If the code returns, record the exact code and what you were doing when it appeared, then contact support - codes map to specific faults in the controller, motor, throttle, or battery circuits.
Certifications & Standards
The HKM-7120595 is produced in a facility operating under an ISO 9001 quality management system. The lithium cells and the assembled 48 V pack carry the test documentation normally required for lithium-ion transport and sale.
- CE - European Conformity marking covering the electrical assembly.
- RoHS - Restriction of Hazardous Substances compliance for the electronics.
- UN38.3 - Battery transport safety testing, required for lithium-ion shipping by air, sea, and road.
- MSDS - Material Safety Data Sheet available for the battery pack on request.
- ISO 9001 - Quality management system certification held by the manufacturing facility.
Important Safety Notes
This is an off-road recreational vehicle, not a road machine. It is intended for private property and designated off-road trails only. Read the manual fully before the first ride, start in the lowest power mode, and build throttle and brake control in an open area before taking on unfamiliar terrain.
- Wear full protective equipment on every ride: a DOT-compliant or off-road helmet, goggles, gloves, elbow and knee protection, long sleeves and trousers, and over-the-ankle boots.
- Do not exceed the 265 lb (120 kg) load capacity, which includes the rider and all carried gear.
- Riders under 16 should ride only under direct adult supervision and with the power mode limited.
- Do not ride on public roads, sidewalks, or bike paths. Confirm local off-highway vehicle rules before riding on land you do not own.
- Do not ride through water deep enough to reach the motor case or battery bay, and do not pressure-wash the machine.
- Charge only with the supplied charger, indoors, at room temperature, on a non-flammable surface, and never leave a charging pack unattended overnight.
- Do not open, puncture, or modify the battery pack. Damaged lithium cells can vent and ignite.
- Let the motor and pack cool between hard sessions, and reduce speed sharply on wet rock, loose gravel, and steep descents.
HKM-7120595 · 2000 W mid-mounted brushless motor (approximately 3000 W peak) · 48 V 21 Ah lithium (1008 Wh) · 31 mph (50 km/h) top speed · 25-31 mi (40-50 km) range · 14 in front and 12 in rear off-road knobby tires · 265 lb (120 kg) load capacity · aluminum alloy frame · adjustable front and rear suspension · hydraulic disc brakes front and rear · approximately 104 lb (47 kg). Specifications are provided for reference; actual performance varies with rider weight, terrain, tire pressure, temperature, and riding style. This vehicle is intended for off-road recreational use on private property or designated trails and is not configured for public road use. This page describes the product only and is not legal advice regarding vehicle classification - confirm local regulations before riding.
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