Mid-Drive Electric Dirt Bike with Fastace Full Suspension
HKM-4204243 Electric Dirt Bike
The HKM-4204243 fuses a lightweight aluminum alloy frame with a high-output mid-drive powertrain: a 6500 W peak motor making 233 Nm (171.9 lb-ft) through a single-speed gear set. The 60 V 40 Ah pack (2400 Wh) delivers up to 74.6 mi (120 km). Full Fastace suspension, hydraulic disc brakes, and 17 in CST off-road tires suit city streets and rough trails alike.
6500 W Peak Mid-Drive233 Nm Torque60 V 40 Ah / 2400 Wh74.6 mi Range17 in CST TiresFastace Full SuspensionHydraulic Disc BrakesFreewheel Rear Hub
Motor
6500 W Peak
Mid-drive, 233 Nm
Battery
60 V 40 Ah
2400 Wh removable lithium
Top Speed
31+ mph
50+ km/h
Range
74.6 mi
120 km per charge
Tires
17 in
CST, 70/100-19 F, 80/100-19 R
Load Capacity
330 lb
150 kg rider plus gear
Overview
The HKM-4204243 uses a purpose-designed aluminum alloy frame that balances rigidity with vibration damping. Geometry suits seated comfort and standing control on technical terrain, and the light mass eases low-speed handling.
The mid-drive motor sits at the bike's center of mass and drives the rear wheel through a single-speed gear set, lowering the polar moment of inertia for sharper turn-in. Peak output is 6500 W with 233 Nm from zero rpm.
Range is a highlight: the 60 V 40 Ah pack stores 2400 Wh for up to 74.6 mi (120 km). A freewheel rear hub lets the wheel spin freely when coasting, reducing drag on descents and flats.
Comfort and control come from full Fastace suspension and hydraulic disc brakes. The 17 in wheels wear CST tires (70/100-19 front, 80/100-19 rear) for a broad contact patch across soil, hardpack, and asphalt.
Key Features
6500 W Peak Mid-Drive Motor
The central motor delivers 233 Nm (171.9 lb-ft) through the single-speed gear set, optimizing weight distribution and efficiency versus a hub motor.
60 V 40 Ah Removable Battery (2400 Wh)
The high-capacity pack supports up to 74.6 mi (120 km) per charge. A smart BMS monitors cell voltage, temperature, and cycles for safety and longevity.
Fastace Full Suspension
Dedicated Fastace front fork and rear shock are calibrated for a wide range of rider weights and terrain, keeping both wheels damped for traction and less fatigue.
Hydraulic Disc Brakes
Fluid-filled lines give superior modulation and less hand fatigue than cable brakes. The sealed system is self-adjusting and resists mud, dust, and water.
Single-Speed Gear Drivetrain
A single-speed transmission removes clutch complexity while keeping power seamless from standstill to top speed. The freewheel rear hub coasts efficiently off-throttle.
17 in CST Off-Road Tires
CST tires in 70/100-19 front and 80/100-19 rear give a broad contact patch; the tread channels mud away to hold traction.
LED Lighting and Display
A bright display and LED lighting keep you informed and visible, showing speed, battery level, and range at a glance.
Toolkit and Trail-Ready Build
An included toolkit handles field adjustments. Water-resistant sealing and a freewheel hub round out a practical, durable package.
Full Specifications
Model
HKM-4204243 | Electric Dirt Bike
Frame Material
Aluminum alloy, off-road geometry
Motor
Mid-drive, 6500 W peak
System Voltage
60 V DC
Battery
60 V 40 Ah lithium-ion (2400 Wh), removable
Charger
Smart charger, 100-240 V input
Charging Time
6-8 hours from empty
Battery Cycle Life
Approximately 800 charge cycles to 80 percent capacity
Top Speed
31+ mph (50+ km/h)
Range Per Charge
Up to 74.6 mi (120 km), optimal conditions
Max Torque
233 Nm (171.9 lb-ft)
Peak Torque
233 Nm from zero rpm
Drivetrain
Single-speed gear set, freewheel rear hub
Brakes
Hydraulic disc brakes, front and rear
Suspension
Fastace full suspension: front fork and rear shock
Tires
CST 70/100-19 front, 80/100-19 rear
Wheels
17 in alloy rims
Seat
Off-road saddle, standing-control geometry
Display
LCD: speed, battery, range, mode
Throttle
Twist-grip throttle, progressive response
Lighting
LED headlight and tail-light
Load Capacity
330 lb (150 kg) rider plus gear
Bike Weight
Approximately 115 lb (52 kg) including battery
Recommended Rider Height
5 ft 4 in to 6 ft 3 in (163-191 cm)
Certifications
CE, RoHS; battery cells UN38.3 tested
Battery, Range, and Charging
The 60 V 40 Ah pack stores 2400 Wh - roughly four times a commuter e-bike pack - which delivers the 74.6 mi (120 km) maximum range on a single charge.
Real-world range varies with rider weight, terrain, speed, tire pressure, temperature, and style. Smooth acceleration and freewheel coasting extend range; aggressive throttle and steep climbs reduce it.
Tip: Charge indoors at room temperature and unplug when green. Storing the pack between 30 and 70 percent for long layups preserves cell health.
The pack is removable for indoor charging and locks into the frame for riding. The BMS monitors voltage, temperature, and cycles continuously.
Daily Use & Care
- Set tire pressure for the surface: lower for loose dirt, higher for asphalt.
- Rinse mud and dust off the frame, rims, and drivetrain after off-road rides.
- Check axle nuts, stem, and suspension pivots before the first ride of each week.
- Keep the chain clean and tensioned; lubricate after wet or dusty rides.
- Inspect hydraulic brake pads monthly and replace under 1 mm.
- Charge indoors at room temperature; partial top-ups are fine.
- Keep connectors and the charge port covered when parked outside.
What's in the Box
- 1 x HKM-4204243 electric dirt bike, approximately 85 percent pre-assembled
- 1 x 60 V 40 Ah removable lithium battery pack
- 1 x Smart charger with 100-240 V input
- 1 x Toolkit for field adjustments
- 1 x Pair of folding pedals (if equipped)
- 1 x Owner manual and assembly guide
- 1 x Warranty and service booklet
- 1 x Spare fastener set
Frequently Asked Questions
What is the maximum range on a single charge?+
Up to 74.6 mi (120 km) under optimal conditions. Actual range varies with rider weight, terrain, speed, tire pressure, temperature, and style.
What type of motor does it use?+
A 6500 W peak mid-drive motor. It sits at the center and drives the rear wheel through a single-speed gear set, improving weight distribution and efficiency.
Is it suitable for off-road riding?+
Yes. Fastace suspension, CST off-road tires, and the aluminum frame are engineered for off-road, and 233 Nm climbs loose inclines.
What kind of brakes does it have?+
Hydraulic disc brakes on both wheels, with superior modulation and self-adjusting sealed fluid lines that resist contamination.
What is the battery specification?+
A 60 V lithium unit with 40 Ah, 2400 Wh total. Lithium-ion gives high energy density and long cycle life.
Does it require a license or registration?+
Requirements vary by jurisdiction. A 6500 W motor with 31+ mph top speed may sit outside standard e-bike classes; check local rules.
What is included on delivery?+
An included toolkit, Fastace suspension, CST tires, and hydraulic disc brakes are factory-installed. Do a pre-ride inspection first.
How does the freewheel rear hub work?+
It lets the rear wheel spin freely when the motor is off, like coasting, reducing drag and extending range. Throttle re-engages the drive.
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.
180 Days Purchase Protection
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.
30 Days Money-Back Guarantee
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 Battery2400 WhHydraulic BrakesFastace Suspension74.6 mi Range
Why Choose the HKM-4204243
Agile Mid-Drive Layout
Central motor placement lowers the polar moment of inertia for sharp, predictable turn-in on gravel, dirt, and pavement.
Range Without Anxiety
A 2400 Wh pack returns up to 74.6 mi (120 km), so long trail loops and commutes are realistic on one charge.
Two Worlds, One Bike
Calibrated suspension and lighting let you ride from the trailhead through town and back without swapping setups.
Quiet and Clean
The brushless mid-drive is near-silent with zero tailpipe emissions, opening noise-sensitive areas.
Light and Durable
An aluminum frame cuts mass without sacrificing structure, easing handling and reducing fatigue.
Built for Conditions
Water-resistant sealing, a freewheel hub, and a toolkit make the HKM-4204243 practical every day and off-road.
Controls & Indicators
Power Button
On the battery pack; hold to switch the system on and off
Mode Buttons
Display buttons cycle through power / assist modes
Twist Throttle
Right-hand grip; proportional response from standstill
Speedometer
Live speed readout in mph / km/h
Battery Gauge
Segment indicator plus percentage on the LCD
Light Switch
Toggle the LED headlight and tail-light
Shifter
Single-speed; control via throttle and brake (no gear shift)
Pre-Ride Safety Checklist
- Check tire pressure for the surface you plan to ride.
- Squeeze both brake levers; they should firm before the grip with no sponginess.
- Confirm the battery is seated and locked, and the display shows expected charge.
- Spin both wheels and check the rims run true with no pad rub.
- Verify axle nuts and stem bolts are tight and the headset has no play.
- Test the throttle at walking pace in a clear area before riding at speed.
- Switch on lights if near dusk, and wear a helmet rated for the speeds.
- If carrying gear, secure it before mounting.
Quick Troubleshooting
The motor does not engage when I twist the throttle.+
Confirm the display is on with charge, the battery is locked in place, and both brake levers are released - cut-off sensors disable the motor while a lever is pulled. Note any error code.
Range dropped noticeably.+
Check tire pressure first; a soft tire is the top cause. Cold weather temporarily reduces capacity. Beyond 30 percent year-round loss after many cycles suggests end of pack life.
The brakes feel spongy.+
Air in the hydraulic line or a fluid leak is likely. Stop and have the system bled and inspected before riding at speed.
The chain skips under load.+
Tension or alignment is off. Adjust the tensioner a quarter turn at a time; inspect the sprocket if it persists.
The suspension feels harsh or too soft.+
Adjust Fastace preload and damping for your weight and terrain. Add preload if it bottoms out; reduce if it floats.
The display shows an error code.+
Power off, wait 30 seconds, restart. If it returns, note the code and conditions and contact support.
Certifications & Standards
The HKM-4204243 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.
- 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 vehicle capable of 31+ mph (50+ km/h). Read the manual fully before the first ride and practice throttle control in an open, traffic-free area until the response feels predictable.
- Wear a helmet on every ride; at these speeds a certified motorcycle or downhill helmet is recommended.
- Do not exceed the 330 lb (150 kg) load capacity, which includes the rider and cargo.
- Check local law before riding on public roads or paths; a 6500 W peak mid-drive motor with 31+ mph (50+ km/h) top speed may place this vehicle outside standard e-bike classifications.
- Bed in the brake pads with progressive stops during the first few rides before riding at full speed.
- Do not ride through water deep enough to reach the motor or battery compartment.
- Charge only with the supplied charger, indoors, at room temperature, on a non-flammable surface.
- 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; tires add grip but do not eliminate traction loss.
HKM-4204243 · 6500 W peak mid-drive (233 Nm) · 60 V 40 Ah lithium (2400 Wh) · 31+ mph top speed · 74.6 mi range · 17 in CST tires · 330 lb (150 kg) load · aluminum alloy frame · hydraulic disc brakes · Fastace full suspension. Specifications are provided for reference; actual performance varies with rider weight, terrain, tire pressure, temperature, and riding style. Range figures are measured under moderate use on level terrain. This page describes the product only and is not legal advice regarding vehicle classification - confirm local regulations before riding on public roads.
Nationwide Service Network & Support
With over 3,000 authorized service centers across the United States, we ensure comprehensive after-sales support for your vehicle, giving you complete peace of mind.
We understand that maintenance needs may arise. When you purchase from us, you gain access to our unparalleled service ecosystem designed for maximum convenience and reliability.
1. DIY Repair & Parts Replacement:
For minor repairs or part replacements that can be handled personally, we provide cost-price genuine parts during the warranty period. Each order is accompanied by clear, step-by-step video tutorials to guide you through the self-repair process seamlessly.
2. Professional Servicing:
For issues requiring expert attention, simply contact our support team. We will locate the nearest authorized service center based on your order and location details. You only need to bring your vehicle to the designated center. Once servicing is complete, we will notify you for pickup. All repairs are free during the warranty period; afterward, only cost-based fees apply.
Rest assured—wherever you are, our extensive partner network is ready to keep your ride running smoothly.
Lifetime Limited Powertrain Warranty & Wrap Program
For added long-term security, our Lifetime Limited Powertrain Warranty and Lifetime Wrap Program provide continued mechanical breakdown coverage for as long as you own your vehicle—with no term or mileage restrictions.
Every product on Hekomart.com is expertly curated from thousands, quality tested, and lifestyle approved. Elevate your everyday.
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Every package receives 24/7 tracking visibility and proactive delivery updates, transforming waiting time into confidence. For time-sensitive purchases, our "Expedited Service Guarantee" offers optional priority handling at no extra cost, because your satisfaction isn't just a goal – it's the core of our delivery DNA.
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Credit Card 180 Days Purchase Protection
The 180 Days Purchase Protection protects the buyer if an item purchased has not been shipped or if a shipped item is significantly not as described by the seller. The 180 Days Purchase Protection covers all purchases and payments made through our website. We accept Visa, Master Card, American Express, and Discover Card. If you don't receive the item that you ordered, or it shows up significantly different from its description, you may qualify for Purchase Protection, and we'll reimburse you for the full purchase price plus any original shipping costs, subject to terms and limitations. If you are charged for a transaction that you didn't make, let us know within 60 days, and we've got you covered.
30 Days Money-Back Guarantee
We are confident that our products are of great quality and even better value. However, if upon receiving and inspecting your item you decide that you want to return it, you will have 30 days as of the date of shipment arrival to return it for a refund minus the shipping cost. No restocking charges. Any additional fees associated with a purchase transaction will be deducted from the amount of the refund.
24-Month Extended Warranty Service
If you purchase products from our website, you have 24 months to request repairs or replacement if any products turns out to be faulty or are not as advertised. During the warranty period if any product is found to have a manufacturer defect, we will repair or replace the defective part(s). If a product cannot be repaired or replaced within a reasonable time, you can request a refund or price reduction. We are confident that our products are of great quality and even better value. However, if upon receiving and inspecting your item you decide that you want to return it, you will have 30 days as of the date of shipment arrival to return it for a refund minus the shipping cost.
