HKM-420499 Full Suspension Electric Bike - 48V 1000W Motor, 18Ah, 26 Inch Fat Tires, Shimano 7-Speed, Hydraulic Disc Brakes
SKU: 42759222083

HKM-420499 Full Suspension Electric Bike - 48V 1000W Motor, 18Ah, 26 Inch Fat Tires, Shimano 7-Speed, Hydraulic Disc Brakes

Sale price$562.50 Regular price$625.00
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Description

HKM-420499 Full Suspension Electric Bike - 48V 1000W Motor, 18Ah, 26 Inch Fat Tires, Shimano 7-Speed, Hydraulic Disc BrakesHKM 420499 Full Suspension Electric Bike New Arrival HKM 420499 Full Suspension Electric Bike Engineered for the modern rider where 48V 1000W precision power meets all terrain versatility. Conquer urban streets and rugged trails with a single, seamlessly integrated machine built on a 6061 aluminum alloy full suspension frame. 48V 1000W Motor 31 mph Top Speed 18Ah Lithium Battery Full Suspension Shimano 7 Speed 26 Fat Tires Key Performance Metrics

HKM-420499 Full Suspension Electric Bike
⚡ New Arrival

HKM-420499 Full Suspension Electric Bike

Engineered for the modern rider — where 48V 1000W precision power meets all-terrain versatility. Conquer urban streets and rugged trails with a single, seamlessly integrated machine built on a 6061 aluminum alloy full suspension frame.

48V 1000W Motor 31 mph Top Speed 18Ah Lithium Battery Full Suspension Shimano 7-Speed 26″ Fat Tires

Key Performance Metrics

Power, range, and control — quantified.

Every figure below reflects real-world testing data gathered under standardized conditions. No exaggeration, just engineering transparency.

31 mph
50 km/h
Max Speed
18 Ah
Lithium Battery
Capacity
31 mi
50 km Electric
Pure EV Range
50 mi
80 km Assist
Pedal Assist Range

Powertrain

48V 1000W motor. Instant torque. Effortless momentum.

The heart of the HKM-420499 is a high-efficiency brushless hub motor engineered to deliver consistent output across a wide RPM band. Paired with a Shimano 7-speed drivetrain, it transforms every ride into a fluid, intuitive experience.

1000W Brushless Hub Motor
Rated at 1000W continuous output with peak efficiency exceeding 85%. The brushless design minimizes mechanical wear, reduces noise, and requires virtually no maintenance over thousands of miles.
Shimano 7-Speed Gear System
The legendary Shimano derailleur provides crisp, reliable shifts across seven distinct ratios. Whether climbing steep inclines or cruising on flat pavement, you will always find the optimal cadence.
Twist Throttle Control
A precision twist-grip throttle positioned on the right handlebar delivers smooth, progressive acceleration. Modulate power output effortlessly from a gentle crawl to full-speed sprint with a natural wrist motion.
Smart LCD Display
A high-contrast LCD panel mounted centrally on the handlebar provides real-time telemetry — speed, battery state-of-charge, pedal assist level, odometer, and trip distance — all readable in direct sunlight.

Energy System

18Ah lithium pack. Fast charging. Extended adventures.

The removable 48V 18Ah lithium-ion battery utilizes high-density 21700 cells arranged in a robust 13S6P configuration. This architecture optimizes thermal management, cycle life, and energy density for dependable long-range performance.

31 mi
Pure Electric Range (50 km)
50 mi
Pedal Assist Range (80 km)
~3.3 h
Full Recharge Time
🔋 Smart Battery Management System (BMS)
An integrated 13-cell BMS continuously monitors voltage, current, and temperature across every individual cell group. Overcharge protection, undervoltage lockout, short-circuit cutoff, and cell balancing are all handled automatically — maximizing both safety and longevity. The battery is rated for over 800 charge cycles before reaching 80% of original capacity, translating to years of dependable service for the average rider.
⚡ 3.3-Hour Rapid Charging
The included 2.5A smart charger replenishes the pack from empty to full in approximately 3 hours and 20 minutes. The charger communicates with the BMS to taper current during the final charging phase, protecting cell health while minimizing downtime between rides. A full charge costs less than $0.25 in electricity at average U.S. residential rates.

Chassis & Suspension

6061 aluminum alloy. Full suspension. Total composure.

The foundation of ride quality is the frame. The HKM-420499 employs a hydroformed 6061-T6 aluminum alloy structure — a material trusted in aerospace and high-performance automotive applications for its exceptional strength-to-weight ratio.

6061-T6 Aluminum Alloy Frame
Hydroformed from aerospace-grade 6061-T6 aluminum, this frame delivers an optimal balance of rigidity and compliance. The T6 temper indicates full solution heat treatment and artificial aging — yielding tensile strength above 45,000 psi while keeping the chassis lightweight and responsive.
Full Suspension System
A dual-shock rear suspension paired with a hydraulic front fork absorbs trail chatter, potholes, and curb strikes. The progressive spring rate ensures small-bump sensitivity without bottoming out on larger impacts, keeping the tires planted and the rider in control.
26-Inch Fat Tires
Oversized 26″ × 4.0″ fat tires provide a massive contact patch for superior traction on sand, snow, gravel, and mud. The increased air volume acts as additional passive suspension, absorbing micro-vibrations that would otherwise reach the rider.
Optimized Weight Distribution
The battery placement within the downtube and the mid-mounted motor configuration achieve a near 50/50 front-to-rear weight balance. This lowers the center of gravity, sharpens handling response, and inspires confidence during high-speed cornering and technical descents.

Safety Systems

Hydraulic disc brakes. Power cut-off. Total confidence.

Stopping power is a non-negotiable priority. The HKM-420499 integrates a dual-piston hydraulic disc brake system with an automatic motor cut-off that activates the moment the brake levers are engaged — eliminating any possibility of unintended acceleration during braking.

🛑 Hydraulic Disc Brake System
Dual-piston hydraulic calipers grip large-diameter stainless steel rotors — 180mm front and 160mm rear. Hydraulic actuation provides superior modulation and requires less lever effort compared to mechanical disc brakes. The sealed system is immune to cable stretch and contamination, delivering consistent bite point and predictable stopping performance in wet, muddy, or dusty conditions.
🔌 Automatic Motor Cut-Off
A hall-effect sensor integrated into each brake lever instantly signals the motor controller to disengage power delivery when either brake is applied. This safety interlock responds in under 5 milliseconds — faster than a human blink — ensuring that braking always overrides motor output without any manual mode switching required.
💡 Integrated LED Headlight
A high-luminosity LED headlight with a focused beam pattern provides excellent forward visibility during low-light operation. The light is powered directly from the main battery pack and controlled via the LCD display, drawing minimal current while delivering over 300 lumens of illumination for safe nighttime riding.

Ride Dynamics

Three ways to ride. One seamless experience.

The HKM-420499 adapts to your riding style — not the other way around. Choose from three distinct operating modes to match your energy level, terrain, and desired workout intensity.

Full Electric Mode
Twist the throttle and go. The motor delivers 100% of propulsive force — no pedaling required. Ideal for quick errands, traffic-heavy commutes, or moments when you simply want to enjoy the breeze without breaking a sweat. Range: up to 31 miles (50 km).
Pedal Assist Mode
Five levels of proportional pedal assist amplify your input. The torque sensor detects pedaling force in real time and seamlessly blends motor power with your effort. This mode extends range to up to 50 miles (80 km) while providing a natural, bicycle-like feel with a welcome boost on hills.
Manual Pedal Mode
Switch off the motor entirely and ride the HKM-420499 as a traditional bicycle. The Shimano 7-speed drivetrain and lightweight aluminum frame make unassisted pedaling surprisingly efficient — perfect for exercise sessions or conserving battery on long excursions.
All-Terrain Capability
The combination of full suspension, fat tires, and selectable power delivery makes the HKM-420499 genuinely versatile. From city potholes to forest singletrack, from sandy beaches to snow-covered paths — this bike handles surfaces that would challenge conventional e-bikes.

Technical Specifications

Every component, every dimension, every detail.

Comprehensive specifications for the HKM-420499. All measurements are provided in both U.S. customary and metric units for clarity.

Motor & Electronics
Motor TypeBrushless DC Hub Motor, Rear Drive Rated Power1000W Continuous Nominal Voltage48V DC Controller TypeSine Wave, 25A Peak Throttle TypeTwist Grip, Right Handlebar DisplayLCD with Backlight, IP65 Rated HeadlightIntegrated LED, 300+ Lumens Wiring HarnessWaterproof IP67 Connectors
Battery System
Battery ChemistryLithium-Ion (Li-NMC) Capacity18 Ah / 864 Wh Nominal Voltage48V Cell Configuration13S6P, 21700 Cells Charge Time~3.3 Hours (0-100%) Cycle Life800+ Cycles to 80% Capacity BMS ProtectionOvercharge, Undervoltage, Short-Circuit, Thermal Battery WeightApprox. 9.9 lb (4.5 kg)
Frame & Chassis
Frame Material6061-T6 Aluminum Alloy, Hydroformed Suspension TypeFull Suspension (Front Fork + Rear Shock) Front SuspensionHydraulic Fork, 80mm Travel Rear SuspensionDual Coil-Over Shock, Progressive Rate Wheel Size26″ × 4.0″ Fat Tires Tire TypeAll-Terrain, Puncture-Resistant Rider Height Range5′ 3″ – 6′ 4″ (160 – 193 cm) Max Payload330 lb (150 kg)
Brakes & Drivetrain
Brake TypeHydraulic Disc, Dual Piston Front Rotor180mm Stainless Steel Rear Rotor160mm Stainless Steel Safety FeatureAutomatic Motor Cut-Off on Brake Gear SystemShimano 7-Speed, Rear Derailleur ChainKMC Rust-Resistant, 1/2″ × 3/32″ CranksetAluminum Alloy, 48T Chainring
Dimensions & Weight
Total Length72.8″ (185 cm) Wheelbase46.5″ (118 cm) Standover Height30.7″ (78 cm) Handlebar Height42.5″ – 44.9″ (108 – 114 cm) Adjustable Saddle Height Range33.5″ – 39.4″ (85 – 100 cm) Net WeightApprox. 66 lb (30 kg) Including Battery
Performance
Max Speed (Electric)31 mph (50 km/h) Pure EV Range31 miles (50 km) Pedal Assist Range50 miles (80 km) Max Climbing GradeUp to 25° Incline IP Rating (Electronics)IP65 Water-Resistant

Why the HKM-420499

Designed to outperform. Built to endure.

In a market crowded with compromises, the HKM-420499 stands apart through thoughtful engineering and component selection that prioritizes long-term ownership satisfaction over short-term cost cutting.

Genuine 1000W Output
Unlike many e-bikes that advertise peak power figures, the HKM-420499 delivers a true 1000W continuous rating. This means sustained performance on long climbs without thermal throttling or premature controller cutback.
Removable Battery Design
The battery pack slides out with a key-lock mechanism, allowing you to charge it indoors at your desk or replace it with a spare for extended adventures. No need to bring the entire bike to an outlet.
Shimano Drivetrain Reliability
Shimano components are the gold standard in cycling. The 7-speed Tourney-level derailleur and shifter provide decades of proven reliability with readily available replacement parts and universal service knowledge at any bike shop worldwide.
Real-World Range Testing
Range figures are based on standardized testing with a 165 lb (75 kg) rider on mixed terrain at 68°F (20°C). Your actual range may vary based on rider weight, terrain, tire pressure, wind conditions, and assist level — but our numbers are transparent and reproducible.

Frequently Asked Questions

Everything you need to know before you ride.

Honest answers to the most common questions about the HKM-420499.

What is the actual top speed, and can it be unlocked?
The HKM-420499 reaches a maximum speed of approximately 31 mph (50 km/h) on full electric mode under optimal conditions — flat terrain, minimal wind, and a fully charged battery. This speed is electronically governed by the sine-wave controller to comply with regulatory frameworks. The top speed on pedal assist will vary based on gear selection and rider input. We do not recommend or endorse any modification that bypasses factory speed limiting, as doing so may affect warranty coverage, legal compliance, and overall safety.
How does the pedal assist system actually work?
The pedal assist system uses a cadence sensor integrated into the bottom bracket area. As you pedal, the sensor detects crank rotation and signals the controller to provide proportional motor output. There are five distinct assist levels selectable via the LCD display. Level 1 provides a gentle boost (approximately 20% of maximum power), while Level 5 delivers near-full motor output with minimal pedal effort. The system engages smoothly within approximately one-half crank rotation and disengages within a quarter-second of pedaling cessation — ensuring a natural, predictable riding feel.
What kind of maintenance does this e-bike require?
Routine maintenance for the HKM-420499 is similar to a traditional bicycle, with a few additional considerations. We recommend: (a) checking tire pressure before each ride — 15-20 PSI for fat tires depending on terrain; (b) cleaning and lubricating the chain every 100-150 miles; (c) inspecting brake pads for wear every 300 miles and bleeding hydraulic lines annually; (d) keeping the battery charged between 20% and 80% for daily use to maximize cycle life; (e) storing the battery at approximately 50% charge if the bike will be unused for more than 30 days. The brushless motor itself requires zero maintenance — no brushes to replace, no internal lubrication needed.
Can I ride this bike in the rain or through puddles?
Yes — with reasonable precautions. The motor, battery housing, LCD display, and all wiring connectors carry an IP65 water-resistance rating, meaning they are protected against low-pressure water jets from any direction. Riding in rain, through shallow puddles, or on wet roads is perfectly acceptable. However, IP65 is not a submersible rating. Do not pressure-wash the bike or submerge any electrical components. After riding in wet conditions, we recommend wiping down the chain and drivetrain components to prevent surface rust, and ensuring the battery contacts are dry before charging.
How does the full suspension compare to a hardtail e-bike?
A hardtail e-bike has suspension only at the front fork, leaving the rear wheel rigidly connected to the frame. The HKM-420499's full suspension design adds a rear shock absorber that allows the rear wheel to move independently of the frame. This provides three key advantages: (1) improved traction on uneven surfaces because the rear tire maintains better ground contact; (2) reduced rider fatigue on long rides by absorbing high-frequency vibrations; (3) greater control and stability during descents. The trade-off is a slight increase in weight and mechanical complexity, but for riders who value comfort and all-terrain versatility, the difference is transformative.
What is the assembly process upon delivery?
The HKM-420499 ships approximately 85% assembled. The major components — frame, motor, battery housing, suspension, and drivetrain — are pre-installed and factory-tested. You will need to: attach the handlebar stem to the head tube (4 bolts), install the front wheel (thru-axle), attach the pedals (left and right specific — clearly marked), mount the headlight, and adjust the saddle height. All necessary tools are included in the box. Most riders complete assembly in 30-45 minutes. A detailed illustrated manual is provided, and a QR code on the packaging links to a step-by-step video guide.
What is the real-world range if I ride aggressively?
Range is influenced by multiple variables. Our stated figures — 31 miles (50 km) pure electric and 50 miles (80 km) pedal assist — assume a 165 lb (75 kg) rider, mixed terrain with moderate elevation changes, tire pressure of 18 PSI, ambient temperature around 68°F (20°C), and minimal headwind. Under aggressive riding (frequent full-throttle acceleration, sustained top speed, steep climbs, heavier rider weight, or cold weather), pure electric range may decrease to approximately 20-25 miles (32-40 km). Conversely, conservative riding on flat terrain with high pedal assist can yield ranges exceeding 55 miles (88 km). The LCD display provides a real-time range estimate based on current power draw.

Purchase With Confidence

Rider-first policies. Zero risk.

Every HKM-420499 is backed by comprehensive coverage designed to give you total peace of mind from the moment you click "order."

Free Shipping on All Orders
Complimentary standard shipping to all 48 contiguous United States. No minimum order value, no hidden surcharges. Typical delivery within 5-8 business days with full tracking provided.
180-Day Purchase Protection
Extended protection covers manufacturing defects and component failures for a full 180 days from the date of delivery. If something goes wrong that is our fault, we make it right — no hassle, no runaround.
30-Day Money-Back Guarantee
Not completely satisfied? Return the bike in its original condition within 30 days for a full refund of the purchase price. We believe in this product and want you to love it — or your money back.
24-Month Warranty Service
A full two-year warranty covers the frame, motor, battery, and controller against manufacturing defects. Our U.S.-based support team responds within one business day to all warranty claims with replacement parts shipped promptly.

The HKM-420499 Full Suspension Electric Bike — engineered for those who demand more from every ride.
Experience the intersection of power, comfort, and intelligent design.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42759222083

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