72V Enduro-Format Electric Dirt Bike with 13000 W Output
HKM-3778259 Electric Enduro Dirt Bike
The HKM-3778259 is an enduro-format electric dirt bike: a 72 V system producing 13000 W and 400 N.m (295 lb-ft) of torque, a detachable down-tube lithium pack good for up to 93 mi (150 km) per charge, and full suspension tuned for sustained off-road use rather than short bursts. A 70/100-19 front and 80/100-17 rear tire pairing gives the classic enduro stance - a taller front wheel for obstacle roll-over, a shorter, wider rear for drive traction. The aluminum alloy frame carries up to 330 lb (150 kg) and hydraulic disc brakes handle the descents.
13000 W Output400 N.m (295 lb-ft) Torque72 V Detachable Lithium PackUp to 93 mi RangeFull SuspensionHydraulic Disc Brakes19 in Front / 17 in Rear Tires330 lb Load Capacity
Motor
13000 W
400 N.m torque on a 72 V system
Battery
72 V
Detachable down-tube lithium pack
Top Speed
31+ mph
Over 50 km/h as specified
Range
Up to 93 mi
150 km on a full charge
Suspension
Full
Enduro-tuned, front and rear
Load Capacity
330 lb
150 kg rider plus gear
Overview
Enduro is a specific discipline rather than a styling label: long days, mixed terrain, technical climbs linked by fast transit sections, and a machine that has to keep working for hours rather than minutes. The HKM-3778259 is built to that brief. The chassis, suspension travel and the up-to-93 mi (150 km) range all point at duration and repeatability rather than a single spectacular run.
The drivetrain produces 13000 W on a 72 V system with 400 N.m (295 lb-ft) of torque, available from zero rpm. On an enduro course that matters most at the slow end - restarting on a steep, loose climb after a stall, lifting the front wheel over a log, or holding traction through a rutted off-camber turn. There is no clutch to slip and no need to keep the motor in a narrow rev band.
The 70/100-19 front and 80/100-17 rear tire pairing is the traditional enduro combination for a reason. The taller, narrower front wheel rolls over obstacles rather than stopping against them and gives precise steering feel; the shorter, wider rear puts a larger contact patch on the ground for drive traction and takes landing impacts better. Both are spoked, so a rim can be re-trued rather than written off.
The battery is detachable and mounted on the down tube, which is the practical layout for enduro use: it keeps mass low and central, it lets the pack come out for indoor charging, and it makes a pack swap a tool-free operation between loops. A full recharge takes 5 to 8 hours. The aluminum alloy frame keeps the machine manageable to lift and turn around on a narrow trail.
Key Features
13000 W Output with 400 N.m of Torque
A 72 V drivetrain producing 13000 W and 400 N.m (295 lb-ft) delivers maximum torque from a standstill. In enduro terms that means restarting mid-climb without a clutch, lifting the front over an obstacle on throttle alone, and holding a steady drive through a rutted turn without hunting for the right gear. Response is immediate because there is no rpm to build.
Detachable 72 V Lithium Pack on the Down Tube
The pack mounts on the down tube, keeping mass low and centred where it has the least effect on handling, and it detaches for charging or replacement without tools. Charging takes 5 to 8 hours from empty. Riders running long days often carry a second pack, since swapping between loops takes seconds and needs no workshop.
Full Suspension Tuned for Enduro Distance
Long-travel suspension at both ends absorbs the repeated, moderate impacts that define a long enduro loop as well as the occasional large hit. Damping matters more over distance than peak travel does: a chassis that stays settled through hours of stutter bumps and root sections is what keeps a rider fresh enough to ride the last hour as well as the first.
Hydraulic Disc Brakes, Front and Rear
Sealed hydraulic lines and large rotors give consistent lever feel through long descents where cable systems fade and heat up. Effort stays light and predictable, which matters when you are braking with two fingers on a technical descent, and perforated rotor faces clear mud and water on the first rotation.
Chain and Sprocket Final Drive
All output passes through a heavy-duty chain and sprocket set rather than a wheel hub. That keeps unsprung weight down so the rear suspension can track the ground, multiplies wheel torque through the rear sprocket, and lets gearing be changed for a specific riding area. The rear wheel also drops out for a trailside tube change without touching motor wiring.
70/100-19 Front and 80/100-17 Rear Knobby Tires
The classic enduro wheel pairing: a 19 in front for obstacle roll-over and steering precision, a 17 in rear that is wider for drive traction and better at absorbing landing impact. The knob pattern bites in loose soil, mud and sand, and spoked rims can be re-tensioned and re-trued after a hard hit rather than replaced.
LED Lighting, Horn and Instrument Display
LED headlight and tail light run from the main pack, which matters on a discipline where loops routinely run longer than planned. A horn is fitted as standard, and the display reports speed, state of charge and trip distance and stays legible in direct sun.
Aluminum Alloy Frame, Kickstand and Toolkit
The lightweight aluminum alloy frame keeps the machine easy to pick up and turn around in tight terrain while resisting flex under 400 N.m of drive torque. A kickstand and a toolkit are supplied, which sounds minor until you are 20 mi into a loop and need to tension a chain without laying the bike on its side.
Full Specifications
Model
HKM-3778259 | Electric Enduro Dirt Bike
Frame Material
Lightweight aluminum alloy
Motor
13000 W output on a 72 V system
System Voltage
72 V DC
Battery
Detachable 72 V lithium pack, down-tube mounted
Charger
Smart charger with LED status, 110-240 V input
Charging Time
5 to 8 hours from empty
Battery Cycle Life
Approximately 800-1000 full cycles to 80 percent capacity
Top Speed
Over 31 mph (over 50 km/h) as specified
Range Per Charge
Up to 93 mi (150 km), varies with terrain, rider weight, and throttle use
Gradeability
Steep technical climbs; limited by traction rather than available torque
Peak Torque
400 N.m (295 lb-ft)
Final Drive
Heavy-duty chain and sprocket
Brakes
Hydraulic disc brakes, front and rear
Suspension
Full suspension, enduro-tuned front and rear
Tires
70/100-19 front, 80/100-17 rear, knobby off-road tread
Wheels
19 in front and 17 in rear spoked rims
Riding Position
Long flat enduro seat and wide handlebar for seated or standing riding
Display
Instrument display: speed, state of charge, trip distance
Throttle
Twist throttle with progressive mapping
Lighting and Signalling
LED headlight, tail light and horn powered by the main pack
Load Capacity
330 lb (150 kg) rider plus gear
Battery Mounting
Down-tube position, detachable without tools for charging or swapping
Intended Use
Off-road enduro and trail riding on private land and designated areas
Certifications
CE, RoHS; battery cells UN38.3 tested
Battery, Range, and Charging
Range is the specification that defines an enduro machine, and the 72 V detachable pack supports up to 93 mi (150 km) on a full charge. That is enough for a full day of linked loops rather than a single run followed by a wait. Mounting the pack on the down tube keeps the heaviest single component low and between the wheels, where it has the least effect on how the bike changes direction.
What actually determines range on a given day is terrain and throttle habit. Steady transit sections on firm ground approach the stated maximum; sustained technical climbing, deep mud and heavy throttle use consume energy far faster. Cold weather temporarily reduces available capacity and it returns as the pack warms. A full charge from empty takes 5 to 8 hours.
Tip: For long ride days, plan around a conservative range estimate rather than the maximum figure, and turn back at 60 percent consumed rather than 50. Terrain on the way out is rarely as easy on the way back, and the last climb of a loop is always the one that empties a pack.
Because the pack detaches without tools, a second pack turns a long day into two full loops with a two-minute swap in between. Charging indoors at room temperature also gives more consistent behaviour than charging in a cold trailer, and it is easier on cell life.
Daily Use & Care
- Check chain tension and lubrication before every ride day. With 400 N.m passing through it, a slack chain is the fastest way to end a loop early.
- Clean and lubricate the chain every 200-300 mi and after any ride in mud or sand, where grit gets packed into the rollers and grinds away the pins.
- Inspect spoke tension on both wheels after hard landings and rocky sections; one loose spoke untrues a rim progressively.
- Wipe the suspension stanchions and wiper seals after dusty rides so grit is not dragged past the seals on the next compression.
- Check brake pad thickness regularly. Enduro riding involves long descents, and pads wear quietly with little warning before they are gone.
- Rinse mud off with a hose rather than a pressure lance; direct high-pressure water forces grit past bearing seals and connector gaskets.
- Keep the battery contacts on the down-tube mount clean and dry, and charge indoors at room temperature on a non-flammable surface.
What's in the Box
- 1 x HKM-3778259 electric enduro dirt bike, largely pre-assembled
- 1 x Detachable 72 V lithium battery pack
- 1 x Smart charger with LED status indication, 110-240 V input
- 2 x Battery keys
- 1 x Toolkit for chain, spoke and fastener adjustment
- 1 x Kickstand (fitted)
- 1 x Horn and handlebar control hardware
- 1 x User manual and pre-ride inspection guide
Frequently Asked Questions
What makes this an enduro bike rather than a motocross bike?+
Enduro is about distance and mixed terrain rather than short laps on a prepared track. That shows up in the up-to-93 mi range, suspension tuned for hours of moderate impacts rather than only big jumps, the 19 in front and 17 in rear wheel pairing for varied ground, and practical fittings such as a kickstand, horn, lighting and a toolkit.
What is the actual top speed?+
The specified figure is over 50 km/h (over 31 mph). Enduro machines are geared for torque and traction across varied terrain rather than for outright top speed on flat ground - the gearing priority is getting up and over obstacles, not maximum velocity.
How far will it really go on a charge?+
Up to 93 mi (150 km) under favourable conditions - steady speed on firm ground with moderate throttle. Technical climbing, mud, sand and aggressive riding will reduce that substantially. Plan the first few loops with margin until you know how your terrain affects it.
Can I carry a second battery?+
Yes, and many riders doing full days do exactly that. The pack detaches from the down tube without tools, so swapping between loops takes seconds. Charging a pack takes 5 to 8 hours from empty, so a spare is the practical way to double a ride day.
Why 19 in front and 17 in rear?+
A taller, narrower front wheel rolls over obstacles instead of stopping against them and gives precise steering feel. A shorter, wider rear puts more rubber on the ground for drive traction and absorbs landing impact better. It is the standard enduro pairing because it works.
How much can it carry?+
The rated load capacity is 330 lb (150 kg), covering the rider, riding gear, hydration pack, tools and anything strapped to the bike. Exceeding it compromises suspension behaviour and lengthens braking distances.
What maintenance does an electric enduro bike need?+
Chain tension and lubrication, brake pad inspection, spoke tension checks and keeping the suspension clean. There is no engine oil, air filter, spark plug, carburetor or fuel system - which on a long ride day also means no fuel to carry.
Is it road legal?+
No. The HKM-3778259 is intended for off-road enduro and trail riding on private land and in designated areas. Rules vary by state and locality, so confirm local regulations before transporting or riding it anywhere other than private property.
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CERoHSUN38.3 BatteryDetachable PackEnduro TiresFull SuspensionHydraulic Discs
Why Choose the HKM-3778259
Built Around Duration, Not a Single Run
Up to 93 mi of range, a detachable pack that swaps in seconds, a kickstand, a toolkit and lighting all point at the same use case: long days on mixed terrain. Those are the specifications that decide whether a machine is still enjoyable in hour four.
Enduro Wheel Pairing, Enduro Suspension
A 19 in front and 17 in rear on long-travel suspension is not a styling decision. It is the combination that rolls over obstacles, drives out of ruts and survives repeated landings, and it is why the format has not changed in decades of competition use.
400 N.m Where It Counts
Peak torque from zero rpm is most valuable at the slow end - restarting on a steep loose climb, lifting the front over a log, holding drive through an off-camber turn. No clutch, no stalling, no hunting for the right gear at the worst possible moment.
Silent Access to Sensitive Areas
Enduro routes often cross land where noise is the deciding factor in whether access continues. A machine with no exhaust note and no fumes is far easier to justify to a landowner, and lets you hear the terrain and other riders around you.
No Fuel to Carry on a Long Day
On a combustion enduro bike, range planning means carrying fuel. Here it means charging the pack and, if the day is long, carrying a second one. There is also no oil, no filter, no plug and no carburetor to service between rides.
Sealed for Wet Trails
Sealed connectors, a gasketed battery interface and protected electronics mean rain, wet grass, puddles and shallow crossings are part of normal use rather than reasons to turn back. Rinse and dry the bike afterwards and it is ready for the next loop.
Controls & Indicators
Ignition
Keyed power switch arms the controller and wakes the display
Power Mode Selector
Handlebar switch adjusts output mapping for technical or open terrain
Throttle
Twist throttle with progressive mapping
Speedometer
Live speed readout in mph, switchable to km/h
Battery Readout
State of charge and live pack voltage on the display
Kill Switch
Handlebar cut-off isolates motor drive immediately
Horn and Diagnostics
Handlebar horn button; on-screen error codes report motor, battery and controller faults
Pre-Ride Safety Checklist
- Check tire pressure front and rear and set it for the surface: firmer for hardpack transit, softer for loose rock and roots.
- Check chain tension and lubrication. On a 400 N.m drivetrain a slack or dry chain is the most common cause of a failed loop.
- Squeeze both brake levers. They should firm up well before the grip, with no sponginess that would indicate air in the hydraulic line.
- Confirm the battery is locked onto the down-tube mount and the display shows the expected state of charge.
- Spin both wheels and check spoke tension, rim trueness and that nothing rubs the rotors.
- Verify axle nuts, triple clamp bolts and swingarm pivot fasteners are torqued to specification.
- Test the throttle at walking pace in a clear area, and confirm the kill switch cuts drive before you rely on it.
- Wear a certified off-road helmet, goggles, gloves, boots and body armour, and carry the toolkit and water for the length of the loop.
Quick Troubleshooting
The motor does not respond to the throttle.+
Confirm the ignition is on, the display is powered and showing charge, the battery is locked onto the down-tube mount, the kill switch is in the run position and both brake levers are released. If the display reports an error code, note it before contacting support.
Power fades on a long technical climb.+
Thermal roll-back is normal protective behaviour when sustained high output is demanded in hot conditions. Let the motor cool and check that cooling surfaces are not packed with mud. Persistent fade at moderate temperature warrants a controller and temperature-sensor check.
The chain jumps or derails under hard drive.+
Tension is almost always the cause. Re-tension to specification and confirm the rear wheel is square in the swingarm. Inspect the sprocket teeth for hooking and the chain for elongation, and replace chain and sprockets as a set once either is worn.
Range is well short of the stated figure.+
Terrain and throttle habit dominate. Technical climbing and deep mud can halve the range compared with steady riding on firm ground. Check tire pressure as well - a soft rear tire on hardpack costs meaningful energy over a long loop.
The rear suspension packs down over repeated bumps.+
This usually means rebound damping is too slow - the shock is not returning fully before the next impact. Back rebound damping out in small increments and test. If adjustment does not fix it, the shock needs service.
The display shows an error code and the bike will not move.+
Switch the ignition off, wait 30 seconds and restart. If the code returns, record the exact code and the conditions that produced it, then contact support - codes map to specific faults in the motor, battery, controller or sensor circuits.
Certifications & Standards
The HKM-3778259 is produced in a facility operating under an ISO 9001 quality management system. The lithium cells and the assembled 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 electric enduro machine producing 13000 W and 400 N.m of torque from zero rpm. It is intended for adult riders on private land or in designated riding areas. Read the manual fully and practise throttle control on open ground before taking it onto technical terrain or into a long loop far from the trailhead.
- Wear a certified off-road motorcycle helmet, goggles, gloves, boots and body armour on every ride.
- The HKM-3778259 is not homologated for public road use. Ride on private land or in designated off-road riding areas only.
- Peak torque is available from a standstill. Practise restarting on a slope in an open area before attempting it on a technical climb.
- Bed in the brake pads with 10-15 progressive stops during the first ride before riding long descents.
- Do not exceed the 330 lb (150 kg) load capacity, which includes the rider, riding gear and anything carried on the bike.
- Do not submerge the battery or the motor. Rain, wet ground and shallow crossings are acceptable; deep water is not.
- Charge only with the supplied charger, indoors, at room temperature, and on a non-flammable surface. Do not leave a charging battery unattended overnight.
- On long loops, plan range conservatively and carry the supplied toolkit, water and a means of communication.
HKM-3778259 · 13000 W output on a 72 V system · 400 N.m (295 lb-ft) torque · detachable down-tube lithium pack · over 31 mph (over 50 km/h) top speed as specified · up to 93 mi (150 km) range · 5-8 h charge · chain final drive · full suspension · hydraulic disc brakes · 70/100-19 front and 80/100-17 rear knobby tires · aluminum alloy frame · kickstand, horn and toolkit supplied · 330 lb (150 kg) load capacity. Specifications are provided for reference; actual performance varies with rider weight, terrain, tire pressure, temperature, and riding style. Range figures represent favourable conditions. This machine is intended for off-road recreational use and is not homologated for public roads. This page describes the product only and is not legal advice regarding vehicle classification - confirm local regulations before riding.
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