High-Torque Full-Suspension Electric Dirt Bike
HKM-0491603 Electric Dirt Bike
The HKM-0491603 is a high-torque electric dirt bike built around a 3000 W peak brushless rear hub motor and a 60 V 30 Ah lithium pack (1800 Wh). The 20 x 4.0 in fat tires and a full-suspension chassis, a hydraulic front fork plus a rear spring shock, keep the ride composed on broken pavement, dirt paths, and gravel. Hydraulic disc brakes at both ends, a 7-speed drivetrain, an LED headlight, and a twist throttle make it ready for short commutes, campsite loops, and weekend trail runs.
3000 W Peak Rear Hub Motor60 V 30 Ah / 1800 Wh Pack13-19 mph Top Speed56-93 mi Range (90-150 km)20 x 4.0 in Fat TiresFull SuspensionHydraulic Disc Brakes7-Speed Drivetrain
Motor
3000 W
Peak rear hub, >100 N.m torque
Battery
60 V 30 Ah
1800 Wh removable lithium
Top Speed
13-19 mph
21-30 km/h, throttle
Range
56-93 mi
90-150 km, varies with assist
Tires
20 x 4.0 in
Fat tread, all-terrain
Charging
5-6 h
Full charge from empty
Overview
The HKM-0491603 is built on an aluminum dirt-bike frame tuned for stable handling at neighborhood speeds and on loose surfaces. The low 20 in wheels drop the center of gravity and shorten the wheelbase, so the bike feels agile in tight spaces and easy to put a foot down at a stop. The chassis is rated for a combined rider-and-cargo load suitable for daily use and light trail riding.
Underneath the bodywork is a modern electric drivetrain: a 3000 W brushless rear hub motor that peaks at over 100 N.m of torque, fed by a 60 V 30 Ah lithium pack that stores roughly 1800 Wh of energy. The twist throttle gives immediate, clutch-free acceleration; a 7-speed gear system lets you add human power when you want to extend the range or climb without drawing the full motor current.
Real-world range is wide because the bike adapts to how you ride. Throttle-only on flat pavement at moderate speed returns around 35-55 mi. Moderate pedal-assist on the same terrain stretches that to 60-80 mi. Aggressive pedaling on level ground with low assist has been measured near the 93 mi (150 km) upper limit. Cold weather, soft tires, and steep terrain all reduce those numbers; warmer months and firmer tires push them back up.
Comfort hardware matches the drivetrain. A hydraulic front fork smooths out broken pavement and gravel, and a rear spring shock takes care of the larger hits that reach the rear wheel. The 20 in wheel diameter keeps the bike low and planted, which is why it handles a wide range of rider heights and stays composed when the surface turns rough.
Product Detail Gallery
A closer look at the components that make the HKM-0491603 a capable full-suspension electric dirt bike.
Key Features
3000 W Brushless Rear Hub Motor
A 3000 W brushless motor is laced directly into the rear wheel hub and peaks at more than 100 N.m of torque. There is no chain or belt between the motor and the ground, so drive losses stay low and maintenance is limited to keeping the axle nuts torqued. Peak output pulls away confidently from a stop and climbs grades that would stall a commuter bike.
60 V 30 Ah Lithium Pack (1800 Wh)
The pack sits in the frame behind a lockable cover and lifts out with a key for indoor charging. 1800 Wh is enough for a full day of mixed riding between charges. A full recharge from empty takes about 5-6 hours on the supplied charger; partial top-ups take proportionally less.
Full Suspension: Hydraulic Front Fork + Rear Shock
A hydraulic front fork smooths out broken pavement and gravel when the surface gets rough, and a rear spring shock absorbs the larger hits that reach the rear wheel. Together they keep the chassis composed on potholes, roots, and washboard dirt where a rigid frame would transmit every bump to the rider.
Hydraulic Disc Brakes, Front and Rear
Sealed hydraulic lines actuate both calipers. Lever effort stays light and predictable when the rotors get hot, and there are no cables to stretch or corrode. Power-off brake levers cut motor drive the instant either lever is pulled, a meaningful safety feature on a powered two-wheeler.
7-Speed Drivetrain
A 7-speed gear system gives usable pedaling cadence from a slow crawl up to cruising speed. The wide gear range is what lets heavier riders climb steep grades without overheating the battery, and it lets you keep moving if you want to extend the range with pedal power.
20 x 4.0 in All-Terrain Fat Tires
Run at low pressure the wide casing spreads rider weight over a large contact patch. The same tires add grip and comfort on gravel, wet pavement, light dirt, and park paths where a narrower tire would skate around on the loose surface.
LED Headlight
A bright LED headlight runs off the main pack so there are no separate batteries to keep charged. It adds visibility in traffic and at dusk, which matters on a bike that can keep up with neighborhood traffic.
LCD Display and Twist Throttle
A backlit LCD shows speed, battery level, assist mode, trip distance, and odometer at a glance. The twist-grip throttle delivers proportional, motorcycle-style acceleration that works independently of the pedal-assist setting.
Full Specifications
Model
HKM-0491603 | Electric Dirt Bike
Frame Material
Aluminum alloy, dirt-bike geometry
Motor
3000 W brushless rear hub motor (peak), >100 N.m torque
System Voltage
60 V DC
Battery
60 V 30 Ah lithium-ion (1800 Wh), removable and lockable
Charger
Smart charger, 100-240 V input, US plug; 5-6 h full charge
Battery Cycle Life
Approximately 800 charge cycles to 80 percent capacity
Top Speed
13-19 mph (21-30 km/h)
Range per Charge
56-93 mi (90-150 km), varies with terrain, rider weight, and assist level
Climbing Ability
Strong climbing via 3000 W peak motor and >100 N.m torque
Peak Torque
>100 N.m
Drivetrain
7-speed gear system
Brakes
Hydraulic disc brakes, front and rear, with power-off levers
Suspension
Hydraulic front fork + rear spring shock
Tires
20 x 4.0 in fat tires, knobby all-terrain tread
Wheels
20 in alloy rims, stainless spokes
Display
Backlit LCD: speed, battery level, assist mode, trip distance, odometer
Throttle
Twist-grip throttle
Lighting
LED headlight, powered by main battery
Certifications
CE, RoHS; battery cells UN38.3 tested
Battery, Range, and Charging
The 60 V 30 Ah pack stores 1800 Wh of energy, roughly double the capacity of a typical commuter e-bike and enough for long rides or a full day of mixed use between charges. That headroom is what lets the bike handle a throttle-only commute without range anxiety at the end of the day.
Real-world range depends on four variables more than anything else: how much you pedal, rider weight, tire pressure, and terrain. Throttle-only riding on flat pavement lands in the 35-55 mi band. Moderate pedal-assist on the same terrain regularly returns 60-80 mi. Aggressive pedaling at low assist on level ground has been measured near 93 mi (150 km). Cold weather below 40 F (4 C) temporarily reduces available capacity by 10-20 percent; it returns once the pack warms up.
Tip: Store the pack between 30 and 70 percent charge if the bike will sit unused for more than a month, and top it up every 4-6 weeks. Charging indoors at room temperature extends usable pack life considerably compared with charging in an unheated garage.
The pack unlocks with the supplied key and lifts out of the frame in a few seconds for indoor charging, while the bike stays locked outside. Charging with the pack installed works equally well through the frame-side charge port.
Real-World Riding
From trailheads to city streets and open sand, the HKM-0491603 is built to ride where ordinary e-bikes hesitate.
Component Close-Ups
Backlit LCD Dashboard
The handlebar LCD shows speed, battery level, assist mode, and trip distance at a glance. A twist throttle delivers instant, linear power for controlled starts on hills and loose ground.
Precision Handlebar Controls
Ergonomic grips, a responsive twist throttle, and hydraulic brake levers place confident control within easy reach — whether climbing, descending, or stopping in a hurry.
Welded Aluminum Frame
A reinforced aluminum frame and clean weld joints keep the chassis rigid under load while absorbing trail chatter through the full-suspension system.
Why Riders Choose the HKM-0491603
Direct-Drive Power
A 3000 W peak brushless rear hub motor sends strong, low-end torque straight to the wheel — no chains or belts to maintain, just clean, responsive acceleration.
Removable Long-Range Battery
The 60 V 30 Ah (1800 Wh) pack pulls out by key for indoor charging and returns with a reassuring click. Ride farther, charge wherever you live.
All-Terrain Suspension
A hydraulic front fork and rear spring shock soak up roots, rocks, and rough pavement so the ride stays composed when the trail does not.
Fat Tires, Real Grip
Twenty-by-four-inch knobby tires bite into loose dirt, sand, and snow where narrow tires would spin — stability you can feel.
Confident Stopping Power
Hydraulic disc brakes front and rear deliver progressive, fade-resistant stopping in wet or dry conditions, with one finger at the lever.
Daily Use & Care
- Tire pressure sets the character of the bike. Run 15-20 psi on pavement for lower rolling resistance; drop to 10-12 psi for gravel and dirt so the tire can flatten and grip the surface.
- Rinse the frame, rims, and drivetrain with fresh water after riding on salted roads or wet gravel. Road film attacks aluminum fasteners over time if left in place.
- Check that both axle nuts and the stem bolts are torqued before the first ride of each week. Hub-motor torque works fasteners loose faster than on a conventional bicycle.
- Wipe and re-lubricate the chain every 100-150 mi, or after any ride through standing water or dusty conditions.
- Inspect brake pad thickness monthly. Hydraulic pads wear silently until they are gone; replace when the friction material is under 1 mm.
- Charge indoors at room temperature. Unplug the charger once the indicator turns green rather than leaving it connected for days.
- Keep the charge port cover closed when the bike is parked outside so moisture stays out of the connector.
What's in the Box
- 1 x HKM-0491603 electric dirt bike, approximately 85 percent pre-assembled
- 1 x 60 V 30 Ah removable lithium battery pack
- 1 x Smart charger with 100-240 V input (US plug)
- 1 x Toolkit with hex wrenches and pedal spanner
- 1 x Kickstand
- 1 x Pair of mudguards (fenders)
- 1 x User manual and assembly guide
Frequently Asked Questions
How much assembly is required out of the box?+
The bike ships approximately 85 percent assembled. Remaining steps are fitting the front wheel, straightening and bolting the handlebar, installing the pedals and saddle, mounting the mudguards, and checking brake alignment. Budget 30-45 minutes with the supplied tools. Have a bike shop check torque and brake bedding if you are not comfortable doing it yourself.
What is the actual range I should plan for?+
Plan for 56-93 mi depending on how much you pedal. Throttle-only riding at moderate speed lands closer to 35-55 mi. Moderate pedal-assist on mixed terrain regularly returns 60-80 mi. Heavier riders, headwinds, hills, and low tire pressure all reduce range.
How fast does it go?+
The listed top speed is 13-19 mph (21-30 km/h). The motor is rated for a 3000 W peak output with over 100 N.m of torque, which is what delivers strong acceleration and climbing rather than a high top number. Check your local rules before riding on public roads or paths.
Is a license or registration required?+
Rules vary by state and locality. A 3000 W peak motor may place this vehicle outside the common three-class e-bike framework in many US jurisdictions, which can mean moped or motor-driven cycle classification. Check your state DMV and local ordinances before riding on public roads or bike paths.
How long does the battery take to charge?+
About 5-6 hours from fully empty with the supplied smart charger. Partial top-ups take proportionally less time; there is no need to run the pack down before recharging.
Can I pedal it if the battery runs out?+
Yes. The 7-speed drivetrain works independently of the motor. The bike is heavy, so pedaling home unassisted is slow going, but it is entirely possible on flat ground.
Will the brakes handle the speed?+
Hydraulic disc brakes front and rear are the appropriate specification for a powered two-wheeler of this weight. Bed the pads in during the first few rides with 10-15 progressive stops from moderate speed to build the friction layer on the rotors.
Is the battery removable for indoor charging?+
Yes. It unlocks with the supplied key and lifts out of the frame. You can also charge it in place through the frame-side charge port.
Premium Build, Proven Performance
Studio-Grade Product, Ready to Ride
Every HKM-0491603 is presented like a flagship machine. What you see is what arrives — a complete, ready-to-ride electric dirt bike.
Proven Across Terrain
From forest trails to city lanes and open shoreline, the same chassis carries you with composure. Real range, real capability, every ride.
Mobile-friendly view — the full product at a glance, optimized for phones and tablets.
Service & Policies
Free Shipping on All Orders
Every order ships free. Handling Time: 0-1 business days (Monday to Friday). Transit Time: 2-5 business days (Monday to Friday). A tracking number is emailed as soon as the parcel leaves our warehouse.
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Your purchase is protected for 180 days from the delivery date against manufacturing defects and damage in transit. If something arrives wrong, we make it right.
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Not completely satisfied? Request a return within 30 days of delivery for a full refund. We keep the process simple and hassle-free.
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 Battery1800 Wh PackHydraulic BrakesFull Suspension3000W Peak
Why Choose the HKM-0491603
High-Torque Dirt Performance
A 3000 W peak rear hub motor with over 100 N.m of torque pulls away from a stop and climbs steep grades that would stall a commuter bike, so the HKM-0491603 feels at home on hills and loose surfaces.
Full Suspension for Rough Ground
A hydraulic front fork and a rear spring shock absorb potholes, roots, and gravel so the chassis stays composed off smooth pavement. The fork soaks up the small stuff while the rear shock handles the bigger hits.
Twist Throttle, Instant Response
The twist-grip throttle gives immediate, clutch-free acceleration with no pedaling required to get moving. It is the simplest way to roll away from a stop or to bridge a steep section without spinning the pedals.
Direct Rear-Hub Drive
The motor is laced into the rear wheel hub with no mid-drive gearbox or extra chain to service, which keeps maintenance simple and the ride quiet. Fewer moving parts in the drive path means less to adjust over time.
Low, Agile 20 in Platform
The 20 in wheels lower the center of gravity and shorten the wheelbase for quick handling in tight spaces and easy footing at a stop, which suits a wide range of rider heights and city maneuvering.
Built for Real Use
Sealed electrical connectors, a covered and lockable battery compartment, and hydraulic brake lines that resist corrosion suit a bike that is ridden daily and parked outside.
Controls & Indicators
Power Button
Located on the battery pack; hold to switch the system on and off
Mode Buttons
Buttons on the display cycle through assist levels and settings
Twist Throttle
Right-hand grip; proportional response, works independently of pedal-assist level
Speedometer
Live speed readout in mph, switchable in the settings menu
Battery Gauge
Charge indicator plus percentage readout on the LCD
Light Switch
Toggles the LED headlight
Shifter
Index shifter for the 7-speed drivetrain
Pre-Ride Safety Checklist
- Check tire pressure and set it for the terrain you plan to ride: 15-20 psi for pavement, 10-12 psi for gravel or dirt.
- Squeeze both brake levers. They should firm up well before reaching the grip, with no sponginess that would indicate air in the hydraulic line.
- Confirm the battery is seated and locked, and that the display shows the expected state of charge.
- Spin both wheels and check that the rims run true and nothing rubs the brake pads or the frame.
- Verify the axle nuts are tight and that the headset has no play when you rock the bike with the front brake applied.
- Test the throttle at walking pace in a clear area before riding in traffic or on a loose surface.
- Switch on the headlight if you will be riding near dusk, and wear a helmet rated for the speeds this bike reaches.
- Check that the kickstand folds clear and the mudguards do not contact the tires before each ride.
Quick Troubleshooting
The motor does not engage when I twist the throttle.+
Confirm the display is on and shows charge, the battery is locked into place, and both brake levers are fully released. Brake cut-off sensors disable the motor while a lever is pulled. If the display shows an error code, note it and contact support.
Range dropped noticeably compared with when it was new.+
First check tire pressure; a soft tire on pavement is the most common cause. Then consider temperature, cold reduces available capacity temporarily. If range is down more than 30 percent year-round after many charge cycles, the pack may be approaching the end of its service life.
The brakes feel spongy at the lever.+
Sponginess in a hydraulic system usually means air in the line or a fluid leak. Stop riding and have the system bled and inspected. Do not continue riding a powered two-wheeler on compromised brakes.
The chain skips under hard pedaling.+
The derailleur indexing is likely out of adjustment, or the chain and cassette are worn. Adjust the barrel adjuster a quarter turn at a time to align the indexing. If the chain skips only in the smallest cogs, the cassette is worn and should be replaced along with the chain.
The front fork rattles over bumps.+
Check that the quick-release lever on the fork is fully closed and that the wheel is seated in the dropouts. If the rattle persists, the fork may need service. Inspect the stanchions for scoring and have a shop rebuild the lowers if needed.
The display shows an error code and the bike will not move.+
Power the system off, wait 30 seconds, and switch it back on. If the code returns, note the exact code and the conditions that produced it, then contact support. Error codes map to specific faults in the controller, motor, or throttle circuits.
Certifications & Standards
The HKM-0491603 is produced in a facility operating under an ISO 9001 quality management system. The battery 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 a high-output electric dirt bike capable of 13-19 mph with a 3000 W peak motor. Read the manual fully before the first ride and practice throttle control in an open, traffic-free area until the response feels predictable. If you will be carrying a passenger, practice solo first, loaded braking distances are noticeably longer.
- Wear a helmet on every ride. At these speeds a bicycle helmet is the minimum; many riders choose a certified motorcycle or downhill helmet.
- Do not exceed the manufacturer-rated load capacity for the rider and cargo.
- Check local law before riding on public roads or paths. A 3000 W peak motor may place this vehicle outside standard e-bike classifications in your area.
- Bed in the brake pads with 10-15 progressive stops during the first few rides before riding at speed.
- Do not ride through water deep enough to reach the hub motor or the battery compartment.
- Charge only with the supplied charger, indoors, at room temperature, and on a non-flammable surface. Do not leave a charging battery unattended overnight.
- Do not attempt to open, puncture, or modify the battery pack. Damaged lithium packs can vent and ignite.
- Reduce speed substantially on gravel, wet surfaces, and downhill grades. Fat tires add grip but do not eliminate the risk of losing traction.
HKM-0491603 · 3000 W brushless rear hub (peak) · 60 V 30 Ah lithium (1800 Wh) · 13-19 mph top speed (21-30 km/h) · 56-93 mi range (90-150 km) · 20 x 4.0 in fat tires · full suspension · hydraulic disc brakes · 7-speed drivetrain · aluminum dirt-bike frame. Specifications are provided for reference; actual performance varies with rider weight, terrain, tire pressure, temperature, and riding style. Range figures are measured under moderate pedal-assist on level pavement. This page describes the product only and is not legal advice regarding vehicle classification - confirm local regulations before riding on public roads.
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