HKM-073939
Dual Battery Electric Motorcycle
A 2000W cruiser-style electric mountain bike engineered for riders who demand uncompromising power, extended range, and all-terrain versatility — redefining what an electric two-wheeler can achieve.
2000W Brushless Motor
Dual 60V 40AH System
40.4 mph (65 km/h)
265 lbs (120 kg) Load
Precision Engineering Meets Raw Capability
The COSWHEEL HKM-073939 is purpose-built to bridge the gap between rugged mountain biking and effortless electric cruising. Every component — from the brushless motor to the double oil brake system — has been selected to deliver a riding experience that feels intuitive, responsive, and exhilarating. Whether you're navigating city streets, climbing forest trails, or covering long distances on open roads, this machine adapts seamlessly.
2000W Brushless Motor — Silent Strength
At the core of the HKM-073939 lies a high-efficiency 2000W brushless DC motor. Unlike traditional brushed motors, brushless technology eliminates mechanical commutator wear, significantly extending motor lifespan while delivering higher torque density and superior energy conversion efficiency. This translates to brisk acceleration, sustained hill-climbing power, and whisper-quiet operation — even under heavy load. The motor's sealed construction also provides excellent resistance to dust and moisture, making it reliable across diverse environmental conditions.
Instant Torque Delivery
Brushless architecture ensures near-instantaneous throttle response. Maximum torque is available from a standstill, enabling confident starts on inclines and rapid overtaking when needed.
Maintenance-Free Longevity
With no brushes to replace and minimal internal friction, the motor requires virtually no routine maintenance — just reliable performance year after year.
Dual Battery Architecture — 60V 40AH Total Capacity
The HKM-073939 employs a sophisticated dual battery configuration that intelligently manages power distribution between two high-density lithium-ion packs. With a combined capacity of 60V 40AH, this system provides a total energy reserve of 2,400 watt-hours — placing it firmly in the upper tier of electric motorcycle energy storage. The dual-pack design not only extends range but also introduces redundancy: if one battery depletes, the second continues powering the motor without interruption. Smart battery management circuitry continuously monitors individual cell voltage, temperature, and charge balance, safeguarding against overcharge, deep discharge, and thermal anomalies.
Extended Range Confidence
The 60V 40AH energy reservoir supports long-distance journeys without the anxiety of frequent recharging stops — ideal for weekend explorers and daily commuters alike.
Intelligent Battery Management
Advanced BMS circuitry ensures optimal charging cycles, cell balancing, and real-time protection — maximizing both performance and battery service life.
Double Suspension — Absorb Everything the Trail Throws at You
A premium double suspension system sets the HKM-073939 apart from single-suspension alternatives. Both front and rear shock absorbers work in harmony to dissipate impact energy across the full chassis, dramatically reducing rider fatigue on rough terrain. The front fork suspension handles abrupt obstacles — potholes, roots, and curbs — while the rear coil-over or gas-charged damper maintains tire contact and stability through successive bumps. Together, they create a plush yet controlled ride quality that inspires confidence at speed and comfort over distance.
Engineered for All-Day Riding Comfort
The dual-suspension configuration reduces transmitted vibration by a significant margin compared to rigid-frame or front-only setups. On extended rides, this means less strain on your wrists, shoulders, and lower back — allowing you to stay focused and enjoy the journey longer.
Double Oil Brake System — Precision Stopping Power
Stopping power is just as critical as acceleration, and the HKM-073939 delivers with a dual hydraulic (oil) disc brake system. Unlike mechanical cable-actuated brakes, hydraulic brakes use incompressible fluid to transmit force from the lever to the caliper pistons, resulting in superior modulation, reduced hand effort, and consistent performance across varying temperatures. The dual-disc setup — one rotor per wheel — ensures balanced, fade-resistant braking even during prolonged descents or emergency stops. For riders navigating steep grades or carrying cargo, this level of braking authority is indispensable.
Hydraulic Modulation
Oil-based actuation provides progressive lever feel, allowing precise braking force control — from gentle speed scrubbing to full emergency stops.
Fade-Resistant Performance
Dual rotors dissipate heat efficiently, maintaining consistent bite even after repeated hard braking on long downhill sections.
Universal Fit — Built for Riders of All Statures
With a seat height of 32.6 inches (82.8 cm), the HKM-073939 strikes an optimal balance between ground reach and pedal efficiency. The cruiser-style frame accommodates riders ranging from 5'1" to 6'5" (155 cm to 196 cm), offering a natural, upright riding posture that reduces strain on the neck and lower back. The generous safe load capacity of 265 lbs (120 kg) ensures the bike remains stable and responsive even when carrying gear, groceries, or a passenger-ready payload.
32.6"
Seat Height (82.8 cm)
47.8"
Wheelbase (121.5 cm)
265 lbs
Max Load (120 kg)
5'1" – 6'5"
Rider Height Range
Technology
Versatility
Understanding What Makes the HKM-073939 Exceptional
Brushless vs. Brushed Motors: In a brushed DC motor, physical carbon brushes press against a rotating commutator to deliver current — this creates friction, sparking, and gradual wear. Brushless motors replace this mechanical switching with electronic commutation, eliminating the primary wear point entirely. The result is higher efficiency (typically 85–90% vs. 75–80% for brushed), quieter operation, and dramatically longer service intervals. For an electric motorcycle intended for daily use, this difference compounds into years of trouble-free riding.
Hydraulic Disc Brakes — The Fluid Advantage: Mechanical disc brakes rely on a steel cable that stretches over time and introduces friction at every bend. Hydraulic systems use a sealed fluid circuit that transmits force with near-zero loss, providing a firmer lever feel and requiring less frequent adjustment. In wet or muddy conditions, where cable-actuated systems can become sluggish, hydraulic brakes maintain consistent performance — a critical safety consideration for all-weather riders.
Dual Suspension Dynamics: Single-suspension bikes (front fork only) leave the rear wheel rigid, meaning every impact transmitted through the rear triangle goes directly into the rider's spine. A properly tuned dual suspension system decouples the rider from trail irregularities at both contact patches, improving traction, reducing fatigue, and enabling higher average speeds over technical terrain. The HKM-073939's double suspension is calibrated to handle everything from urban potholes to backcountry singletrack.
One Machine, Infinite Possibilities
Urban Commuting
Slicing through city traffic with brisk acceleration and nimble handling. The silent electric drivetrain makes early-morning departures discreet, while the double suspension soaks up potholed streets effortlessly.
Trail Exploration
Confidently tackle unpaved paths, forest roads, and moderate singletrack. The 2000W motor provides the torque needed for steep climbs, while dual suspension maintains composure on descents.
Weekend Touring
With the dual 60V 40AH battery system, plan longer recreational rides without route-anxiety. Cruise scenic backroads at a relaxed pace, knowing you have ample range to return home comfortably.
Errand Running & Cargo
With a 265 lbs load capacity, the HKM-073939 easily handles grocery runs, gear hauls, and passenger duties. The stable wheelbase and robust frame inspire confidence under load.
Support
Frequently Asked Questions
What is the real-world range on a full charge?
Range varies based on rider weight, terrain, speed, and assist level. Under mixed riding conditions with moderate throttle use, riders can expect substantial coverage from the 60V 40AH dual battery system. For maximum range, maintain steady speeds on flat terrain and use lower power-assist settings. The dual-pack design also allows you to carry a single battery for shorter trips, reducing weight.
How long does it take to fully charge both batteries?
Charging time depends on the charger output. With the standard charger, a full charge of the dual battery system typically takes several hours. The intelligent BMS manages charging to protect cell health, tapering current as the batteries approach full capacity. For daily commuting, many riders top off overnight.
Is the HKM-073939 suitable for off-road use?
Absolutely. The double suspension system, robust frame geometry, and high-torque brushless motor make it well-suited for gravel paths, fire roads, and moderate trails. The dual oil brakes provide reliable stopping power on loose surfaces. However, it is not designed for extreme downhill or motocross-style riding.
What maintenance does the motor require?
The brushless DC motor is effectively maintenance-free under normal use. There are no brushes to replace, and the sealed bearing assembly requires no lubrication. We recommend periodic inspection of wiring connections and keeping the motor housing clean from excessive mud or debris buildup.
Can the batteries be removed for charging?
Yes, the dual battery packs are designed to be removable. This allows convenient indoor charging, security when parking in public spaces, and the flexibility to carry spare batteries for extended adventures.
What is the expected battery lifespan?
Lithium-ion cells in the 60V 40AH system are rated for hundreds of full charge-discharge cycles before capacity degradation becomes noticeable. With proper care — avoiding prolonged storage at full charge or fully depleted states — the batteries can deliver reliable service for several years of regular use.
Purchase with Confidence
Free Shipping on All Orders
Complimentary delivery with every purchase — no hidden fees or minimum order requirements. Your HKM-073939 arrives at your doorstep at no extra cost.
180 Days Purchase Protection
Extended coverage against manufacturing defects for a full six months. Ride with peace of mind knowing your investment is safeguarded.
30 Days Money-Back Guarantee
Not completely satisfied? Return the bike within 30 days for a full refund — no questions asked. Your satisfaction is our priority.
24 Months Warranty Service
Comprehensive two-year warranty coverage on the motor, battery system, and frame. Dedicated support team ready to assist with any concerns.
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.
Express Delivery Priority - Where Speed Meets Satisfaction
At Hekomart.com, we understand the anticipation that comes with every online order. While most platforms rely on standard economy shipping, we prioritize your excitement by strategically selecting premium express carriers to accelerate deliveries. Our intelligent logistics system analyzes real-time data to optimize routes, partnering with globally-recognized couriers like DHL, FedEx, and UPS to ensure 30% faster doorstep arrivals* than industry averages.
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.
*Based on internal 2025 data comparing standard shipping durations across major platforms. Delivery times vary by destination and customs procedures.
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.
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