HKM-071635
26" 4.0 Fat Tire Electric Bike
A meticulously engineered electric bike that fuses rugged all-terrain capability with refined urban sophistication — built for riders who demand performance without compromise.
1000W High-Torque Motor — Conquer Every Incline
The heart of the HKM-071635 is a robust 1000W brushless rear hub motor, purpose-built to deliver relentless torque across diverse terrain. With an output ranging from 59 to 66 ft-lbs (80–90 Nm), this motor transforms challenging uphill sections into effortless ascents. Unlike mid-drive systems that strain the chain and drivetrain, the hub motor design isolates propulsion forces at the wheel, reducing mechanical wear and ensuring consistent performance over thousands of miles. Whether you are accelerating from a standstill at a traffic light or powering through loose gravel on a backcountry trail, the instantaneous throttle response provides a surge of confidence. The motor's sealed construction also protects internal components from dust, moisture, and debris, making it suitable for year-round riding in varied conditions.
48V 16AH Lithium Battery — Ride Farther, Worry Less
At the core of the HKM-071635's endurance lies a premium 48V 16AH lithium-ion battery pack, delivering a certified range of up to 37.3 miles (60 km) on a single charge under standard conditions. The battery employs high-density 21700 lithium cells, which offer superior energy density and thermal stability compared to older 18650 form factors. This translates to longer cycle life — typically rated for over 800 full charge cycles before capacity dips below 80%. An intelligent Battery Management System (BMS) continuously monitors individual cell voltage, temperature, and discharge rates, safeguarding against overcharging, overheating, and short circuits. The removable battery design also adds convenience: charge it on or off the bike, swap in a spare for extended journeys, or store it indoors during colder months to preserve longevity.
6061 Aluminum Alloy Frame — Strength Without the Burden
The HKM-071635 is built around a precision-welded 6061 aluminum alloy frame, a material widely adopted in aerospace and high-performance cycling for its exceptional strength-to-weight ratio. Through a process of T6 heat treatment, the aluminum gains enhanced tensile strength and resistance to stress fractures, ensuring the frame remains rigid under heavy loads and over rugged terrain. The geometry has been carefully optimized: a slightly relaxed head tube angle provides stable, predictable steering at speed, while the low standover height allows riders of varying statures to mount and dismount with ease. Integrated internal cable routing not only contributes to a clean, minimalist aesthetic but also shields brake lines and shifter cables from snags, abrasion, and the elements. Despite its robust construction, the frame remains refreshingly lightweight, making the bike manageable when lifting onto a bike rack or navigating stairwells.
26" × 4.0 Fat Tires — Unmatched Traction & Stability
Rolling on oversized 26-inch by 4.0-inch fat tires, the HKM-071635 redefines what an electric bike can traverse. The expansive contact patch — significantly larger than standard mountain bike tires — distributes the rider's weight across a broader surface area, dramatically improving floatation on soft substrates like sand, snow, and loose dirt. On paved roads, the same wide footprint translates to enhanced cornering grip and a planted, confidence-inspiring feel at higher speeds. The aggressive tread pattern features alternating center knobs for low rolling resistance and deep side lugs that bite into loose terrain during off-camber sections. Constructed with a high TPI (threads per inch) casing and puncture-resistant layers, these tires resist pinch flats and thorn penetrations, reducing the likelihood of trailside repairs. Running at lower air pressures — as low as 8 PSI in off-road conditions — further enhances shock absorption and traction without compromising rim integrity.
7-Speed Shimano Drivetrain — Precision Gearing for Every Grade
The HKM-071635 is equipped with a 7-speed Shimano derailleur system, offering a practical and reliable range of gear ratios suitable for both flat urban sprints and steep mountain climbs. The indexed shifter provides crisp, tactile feedback with each gear change, while the Shimano rear derailleur's spring-loaded parallelogram design maintains precise chain alignment across all seven cogs. This reduces chain slap and minimizes the risk of derailment on bumpy terrain. The gear range allows you to downshift for low-speed technical sections or upshift to maintain efficient pedaling cadence at higher speeds — an essential feature when riding beyond the motor's assisted speed threshold. The system's widespread compatibility also means replacement parts and routine maintenance are straightforward and cost-effective.
Hydraulic Disc Brakes — Authority to Stop on Command
Safety is non-negotiable, and the HKM-071635 addresses this with front and rear hydraulic disc brakes. Unlike mechanical disc brakes that rely on cable tension — which can stretch and require frequent adjustment — hydraulic systems use incompressible mineral oil to transmit force from the lever directly to the caliper pistons. This results in superior modulation, meaning you can precisely meter braking force rather than experiencing an abrupt on/off bite. The larger rotor diameter increases heat dissipation during prolonged descents, combating brake fade and maintaining consistent stopping power when you need it most. Whether you are navigating a wet urban intersection or descending a dusty fire road, the sealed hydraulic system remains impervious to contaminants that would degrade cable-actuated alternatives.
Suspension Front Fork — Smooth Out the Rough Edges
The HKM-071635's front suspension fork is engineered to absorb impact energy from potholes, roots, rocks, and uneven pavement, transforming jarring hits into manageable undulations. Internally, a coil spring or air chamber (depending on configuration) compresses upon impact, while oil-damped rebound control prevents the fork from snapping back harshly — a critical feature that keeps the front tire planted for continuous traction. With a travel range sufficient for both urban commuting and light trail riding, the fork strikes an ideal balance between comfort and efficiency. The stanchions are hard-anodized to reduce friction and resist scratching, extending service intervals and maintaining plush performance over the bike's lifetime. Riders who frequently encounter cobblestone streets, gravel paths, or potholed city roads will immediately appreciate the reduction in upper-body fatigue.
Vibrant Color LCD Display — Intelligence at a Glance
Mounted centrally on the handlebar, the high-resolution color LCD display serves as the command center for your ride. In direct sunlight or under overcast skies, the screen remains legible thanks to its anti-glare coating and adjustable backlight. Real-time metrics — including current speed, battery state-of-charge (displayed as a percentage), trip distance, odometer, assist level, and motor output wattage — are presented in a clean, intuitive layout. The display also integrates with the bike's pedal-assist system, allowing you to toggle between multiple levels of electric assistance on the fly. An IP65 water-resistance rating ensures the unit withstands rain and splashes without malfunctioning. Additionally, the USB port on the display module can charge a smartphone or GPS device during longer excursions, adding a layer of practical utility.
Personalization Options — Make It Uniquely Yours
The HKM-071635 goes beyond off-the-shelf conformity with available customization options. Riders can select from a curated palette of frame colors, ranging from understated matte finishes to bold, vibrant hues that stand out on the trail or street. Beyond color, custom logo placement and branding options are available for fleet orders, corporate programs, or individuals who wish to add a personal touch. These customizations are applied using durable, UV-resistant paints and decals that maintain their luster through years of exposure to sun, rain, and trail debris. Whether you want a bike that matches your brand identity or simply reflects your personal aesthetic, the HKM-071635 accommodates without compromising its core engineering integrity.
Engineering Insights
Understanding the technology that sets the HKM-071635 apart.
Hub Motor vs. Mid-Drive: Why Hub Motors Excel for All-Terrain E-Bikes
Hub motors place the propulsion unit directly within the wheel hub, eliminating the need for complex drivetrain integration. This design reduces stress on the chain, cassette, and derailleur — components that wear faster under mid-drive torque loads. For fat tire applications specifically, hub motors allow the use of wider dropout spacing without compromising frame geometry, enabling the massive 4.0-inch tires that define this category. Additionally, regenerative braking potential (where supported) and independent pedal/drive systems mean that even if the chain breaks mid-ride, the throttle can still propel you home.
Lithium-Ion Battery Care: Maximizing Lifespan
Modern lithium-ion packs, like the 48V 16AH unit in the HKM-071635, perform best when kept between 20% and 80% state-of-charge for daily use. Occasional full charges are fine — and recommended for balancing cells — but long-term storage at 100% charge in high temperatures can accelerate chemical aging. Storing the battery in a cool, dry environment (ideally 59–68°F / 15–20°C) and avoiding complete depletion will help maintain capacity for years. The integrated BMS handles cell-level protection automatically, but mindful charging habits extend overall lifespan significantly.
Fat Tire Physics: Why Width Matters
A 4.0-inch tire at low pressure creates a contact patch nearly double that of a standard 2.2-inch mountain bike tire. This larger footprint lowers ground pressure, preventing the bike from sinking into soft surfaces. On hardpack or pavement, the increased rubber contact improves braking traction and cornering stability. The trade-off — slightly higher rolling resistance — is effectively neutralized by the 1000W motor's ample power output, giving riders the best of both worlds: off-road capability without on-road sluggishness.
Technical Specifications
Key parameters at a glance.
1000W
Motor Rated Power
59–66 ft-lbs
Torque (80–90 Nm)
48V 16AH
Lithium Battery
37.3 mi
Max Range (60 km)
26" × 4.0
Fat Tire Size
7-Speed
Shimano Drivetrain
Hydraulic
Disc Brakes (F&R)
6061 Aluminum
Alloy Frame
Suspension
Front Fork
Color LCD
Display with USB
Built for Every Journey
From weekday commutes to weekend explorations, the HKM-071635 adapts seamlessly.
Urban Commuting
Glide through city streets with authority. The fat tires absorb pothole impacts, hydraulic brakes handle sudden stops in traffic, and the 7-speed drivetrain keeps cadence comfortable at every intersection. Arrive at work refreshed, not exhausted.
Mountain Trail Riding
Tackle steep fire roads and rocky singletrack with 80–90 Nm of torque on tap. The suspension fork smooths out root-laced descents, while fat tires find grip where standard tires would slip. Your adventure begins where the pavement ends.
Frequently Asked Questions
What is the actual range I can expect from the 48V 16AH battery?
Range varies based on rider weight, terrain, assist level, tire pressure, and ambient temperature. Under typical conditions — a 165 lb (75 kg) rider on mixed terrain using pedal-assist level 3 — you can expect approximately 37.3 miles (60 km). Using throttle-only mode at maximum speed will reduce range, while conservative pedal-assist on flat pavement can exceed the rated figure. Carrying a spare charged battery effectively doubles your range for extended tours.
How does the hydraulic disc brake system differ from mechanical brakes?
Hydraulic brakes use sealed fluid lines to transmit lever pressure directly to the caliper pistons. This eliminates cable stretch and friction losses inherent in mechanical systems, resulting in lighter lever effort, more precise modulation, and consistent performance in wet or muddy conditions. They are also self-adjusting for pad wear, meaning less frequent maintenance compared to cable-actuated brakes.
Can I ride the HKM-071635 in the rain or snow?
Yes. The motor, battery housing, and LCD display all carry IP65 or equivalent water-resistance ratings, meaning they withstand rain, splashes, and snow exposure. The fat tires perform exceptionally well on snow-packed surfaces when run at lower pressures (8–12 PSI). After riding in wet conditions, we recommend wiping down the chain and drivetrain components to prevent surface corrosion and prolong component life.
What is the top speed of this electric bike?
The HKM-071635 is electronically governed to comply with regional e-bike regulations. In most configurations, the motor provides assistance up to 20 mph (32 km/h) in throttle mode and up to 28 mph (45 km/h) in pedal-assist mode, depending on local legal classifications. The 1000W motor has ample headroom to maintain these speeds even on moderate inclines.
How heavy is the bike, and can I transport it on a standard bike rack?
The aluminum alloy frame keeps the overall weight manageable for an electric fat tire bike. We recommend using a platform-style hitch rack rated for e-bikes (minimum capacity of 60 lbs / 27 kg per bike) for vehicle transport. The removable battery can be taken off to reduce weight by approximately 8–10 lbs (3.6–4.5 kg) during loading. Always consult your rack manufacturer's specifications before transporting any e-bike.
Does the bike require assembly upon delivery?
The HKM-071635 ships partially assembled. Typical setup involves attaching the front wheel, handlebar stem, pedals, and seat post — tasks that most riders complete in 30–45 minutes using the included toolkit and illustrated guide. The brakes and drivetrain are pre-adjusted at the factory. For those who prefer professional assembly, any local bike shop can perform the final setup quickly.
Purchase with Confidence
Free Shipping
Complimentary shipping on every order — no minimum purchase required. Delivered directly to your doorstep.
180-Day Protection
Extended purchase protection covers manufacturing defects and material flaws for a full 180 days from delivery.
30-Day Money-Back
Not completely satisfied? Return within 30 days for a full refund — no questions asked, no restocking fees.
24-Month Warranty
Comprehensive 2-year warranty on the frame, motor, and battery — because lasting quality deserves lasting coverage.
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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