Electric Bicycles >>
HKM-619411 29 in Full Suspension Electric Mountain Bike, 1000 W Rear Hub Motor, 48 V 19.2 Ah Removable Battery, 28 mph Top Speed, 27-Speed Drivetrain, Hydraulic Disc Brakes, 330 lb Load, Aluminum Alloy Frame
HKM-619411 Full Suspension Electric Mountain Bike
The HKM-619411 pairs a 1000 W rear brushless hub motor with a 48 V 19.2 Ah lithium pack (about 922 Wh) in an aluminum full-suspension frame. A triple chainring up front paired with a 9-speed cassette gives 27 gears for climbs and flats alike. Air-sprung fork with lockout, frame-mounted rear shock, hydraulic disc brakes at both ends, and Kenda 29 x 2.4 in knobby tires round out a bike that climbs and descends with composure up to 28 mph.
Overview
The HKM-619411 is a 29 in full-suspension electric mountain bike built for riders who want a real trail bike with electric assist. The down-tube-integrated 48 V 19.2 Ah lithium pack supplies a 1000 W rear hub motor with enough torque for sustained climbs, while the full-suspension frame and 29 in wheels roll over roots, rocks, and broken pavement without rattling the rider. Twenty-seven gears cover every grade from gentle spin to steep switchback, and hydraulic disc brakes at both ends provide the stopping power a 28 mph bike demands.
This is a bike designed to be ridden hard. The aluminum frame keeps weight near 55 lb despite the full-suspension layout, the integrated battery can be charged on or off the bike, and the controls are grouped on the left grip so your right hand never leaves the bar. A color LCD display shows speed, battery, assist level, odometer, and trip distance at a glance, even in direct sunlight.
Pre-ride, confirm tire pressure is at least 45 PSI, the battery is locked into the frame, and the brakes bite firm. On the trail, start in assist level 1 or 2 and let the hub motor warm up for the first mile before asking for full output. After the ride, plug the charger in before the pack drops below 20 percent - lithium cells last longer when they are not stored empty.
Key Features
A 1000 W brushless geared rear-hub motor delivers strong acceleration and pulls the bike up to 28 mph on assist. Because the motor sits in the rear wheel, the drivetrain stays simple and the bike pedals normally with the motor off - useful on technical climbs where you want to choose your own line.
A 48 V 19.2 Ah (~922 Wh) lithium pack slides up out of the down tube for indoor charging. The integrated location keeps the frame silhouette clean, lowers the center of gravity, and protects the cells from rocks and water thrown up by the front wheel.
The adjustable air-sprung suspension fork takes the bigger hits before they reach the handlebars. A lockout lever on the crown stiffens the fork for road sections so energy is not wasted on pedal-induced bob.
A frame-mounted rear shock works with the front fork to deliver full four-bar suspension. The rear wheel stays planted over roots and ripples instead of bouncing, which preserves traction on loose climbs.
Front and rear hydraulic disc brakes deliver strong, modulated stopping power in wet or dry conditions. The rotors run larger than mechanical discs and shed heat better on long descents.
A triple chainring up front paired with a 9-Speed Shimano cassette gives 27 gear combinations - enough range to spin comfortably up a steep climb and still hit a comfortable cadence on the flats.
The backlit center display shows speed, battery level, assist mode, odometer, and trip distance at a glance. Buttons on the left grip let the rider change assist levels without taking a hand off the bar.
A front headlight and rear brake light run off the main battery, so there is nothing extra to charge. The light is wired through the controller so it does not need its own switch.
Full Specifications
Battery & Range
A 48 V 19.2 Ah lithium-ion pack sits inside the down tube and is rated for about 922 Wh of usable energy. The pack slides up out of the frame for indoor charging - no need to bring the entire bike inside if the charger will not reach the garage. Samsung-style 21700 cells are paired with a battery management system that protects against overcharge, overdischarge, short circuit, and thermal runaway.
Real-world range depends on assist level, terrain, rider weight, and tire pressure. In assist level 1 on flat pavement, expect up to 70 mi per charge. In assist level 5 on steep trails with a heavy rider, expect closer to 35 mi. Charging from empty takes between 4 and 6 hours with the included 2 A charger; an optional 4 A fast charger cuts that to about 2.5 hours.
The integrated battery keeps the frame silhouette clean, lowers the bike's center of gravity for better handling, and protects the pack from rain and road grime.
An LED battery indicator on the side of the pack shows state of charge at a glance even when the pack is off the bike.
The keyed cradle lock prevents the pack from being removed or powered on without the key - useful when parking at a trailhead.
Daily Use & Care
- Start the battery with the keyed switch on the cradle, then long-press the power button on the display for three seconds.
- Mount the bike with the saddle at hip height - the recommended saddle height leaves a slight bend in the knee at the bottom of the pedal stroke.
- Pedal off in assist level 1 to feel out the brakes and the bike's weight before opening the throttle or stepping up to a higher assist level.
- Lean the bike against a wall or use the kickstand when parking - the full-suspension frame is light enough at ~55 lb to carry up a short flight of stairs but heavy enough to want a stand.
What's in the Box
- 1 x HKM-619411 electric mountain bike (battery installed)
- 1 x 48 V 2 A charger
- 1 x Tool kit (Allen keys, spoke wrench, pedal wrench)
- 1 x Owner's manual and quick-start guide
- 2 x Battery keys
- 1 x Reflector set (front white, rear red)
Frequently Asked Questions
Does the HKM-619411 require assembly?+
Is the battery waterproof?+
Can I ride the bike without the battery?+
How fast can the bike go?+
What is the warranty?+
Service & Policies
Why Choose the HKM-619411
A 29 in wheel paired with a slack head-tube angle and short chain-stays puts the rider in a confident, balanced position for both climbing and descending. This is not a hybrid with mountain bike wheels.
At 922 Wh the integrated battery is larger than most competitors in this price tier. Real-world range tops 70 mi in low assist on flat ground - enough for a full day of trail riding.
A frame-mounted rear shock matched to the air-sprung fork keeps the rear wheel planted over roots and ripples. Cheaper e-MTBs run fork-only and bounce riders off the saddle on choppy descents.
Five assist levels respond to pedal cadence - the harder you pedal, the more motor you get. The system is smooth and intuitive even for riders who have never used an e-bike before.
Controls & Indicators
Pre-Ride Safety Checklist
- Check tire pressure with a gauge - both tires should be at least 45 PSI for paved use and 35 to 40 PSI for technical trail.
- Squeeze each brake lever and confirm the rotor bites firm within half an inch of lever travel.
- Lift the battery by the handle and confirm it locks fully into the cradle - a partially seated pack will cut power mid-ride.
- Look at the display - the battery bar should show at least three of five segments before heading out.
- Walk the bike forward and back, listening for any rubbing from the brakes or loose fenders.
Quick Troubleshooting
Top speed feels lower than expected+
Battery will not charge+
Display will not power on+
Brakes feel spongy+
Range is shorter than advertised+
Certifications & Standards
The HKM-619411 is engineered to meet the major North American and European safety and electromagnetic standards for electric bicycles. The battery pack is certified for both air and ground transport under UN 38.3, so the bike can be shipped and flown without hazmat surcharges on most carriers.
- UL 2849 - Electrical Drive System Safety
- EN 15194 - European E-Bike Safety Standard
- UN 38.3 - Battery Transport Safety
- CE - European Conformity
- FCC - Electromagnetic Compatibility
- RoHS - Hazardous Substance Restriction
Important Safety Notes
Riding any e-bike carries real risk. The HKM-619411 is built to minimize that risk with redundant electrical protections, hydraulic braking, and integrated lighting, but the rider is ultimately responsible for safe operation.
Always wear a helmet, follow local traffic laws, and ride within your ability. The bike is capable of 28 mph - faster than many riders are used to - so practice braking and cornering at low speed before taking it on a busy road.
- Overcurrent Protection - Controller cuts power if motor draws more than rated current
- Overheat Protection - Motor and controller reduce power if temperature exceeds safe range
- Low-Voltage Cutoff - Battery management system protects pack from over-discharge
- Short-Circuit Protection - Fused circuit cuts power in the event of a wiring fault
- Brake Light Activation - Rear light brightens when either brake lever is pulled
- Keyed Battery Lock - Battery cannot be removed or powered on without the key
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.
What Is Covered
Manufacturing Defects
We replace items with material or workmanship flaws at no charge.
Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
Zero Hidden Fees
All shipping costs for replacements and returns are covered.
How to File a Claim
How This Differs from the Warranty
The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.
We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.
Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.
Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
Proof of Purchase
A receipt or order number is required.
Fast Refund
Refund processed within 10 business days.
How to Start a Return
Returns & Exchanges Overview
Damages & Exchanges
Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.
We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.
The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.
What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
Free Repair or Replacement
Whichever is faster, at no cost to you.
Quick Turnaround
Claims assessed within 1 business day.
Transferable
Warranty follows the product, not the owner.
How to File a Warranty Claim
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Delivery Process
Delivery Time Summary
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Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.
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Our experts help you choose the right product.
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Modify orders, track shipments, or speed up delivery.
Warranty & Returns
Start claims or returns quickly and easily.
Technical Troubleshooting
Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week
