Full-Suspension 6061 Aluminum Fat Tire Electric Bike
HKM-596307 Electric Fat Tire Bike
The HKM-596307 is built for riders whose route does not stay on one surface. A 1000 W high-torque brushless hub motor pushes it to 30 mph (48 km/h), a removable 48 V 15 Ah lithium pack covers 28-31 mi (45-50 km) between charges, and 20 x 4.0 in fat tires hold their line on gravel, packed sand, wet tarmac, and light snow. Front fork and rear coil-over shock work together to keep the frame calm on rough ground, while a 6061 aluminum chassis rated to 330 lb keeps the whole package light enough to handle in a crowded bike room.
1000 W Brushless Hub Motor48 V 15 Ah / 720 Wh Pack30 mph Top Speed28-31 mi Range20 x 4.0 in Fat TiresFront and Rear SuspensionFront and Rear Disc Brakes330 lb Load Capacity
Motor
1000 W
High-torque brushless hub
Battery
48 V 15 Ah
720 Wh removable lithium
Top Speed
30 mph
48 km/h, throttle only
Range
28-31 mi
45-50 km per charge
Tires
20 x 4.0 in
Fat tread, multi-surface
Load Capacity
330 lb
150 kg rider plus cargo
Overview
The frame is 6061 aluminum alloy, TIG-welded at every joint. That alloy is used widely in transport engineering because it holds a high strength-to-weight ratio while resisting corrosion, and here it lets the bike carry a 330 lb (150 kg) rated load without the mass of a steel chassis. The geometry puts the rider in a natural upright position with a low standover height, so mounting and dismounting is easy in traffic and comfortable over a long commute.
A 1000 W brushless hub motor supplies the drive. Sealed against dust and moisture and free of brushes to wear out, it delivers torque smoothly from a standstill and holds 30 mph (48 km/h) on level ground. Energy comes from a removable 48 V 15 Ah lithium-ion pack - about 720 Wh - with cell management that protects against overcharge, over-temperature, and short circuit. A full recharge takes roughly 6-8 hours, on or off the bike.
Under typical conditions - moderate pedal-assist, flat to mildly hilly ground, a rider around 165 lb (75 kg) - expect 28-31 mi (45-50 km) per charge. Heavy throttle use, sustained climbing, headwinds, cold weather, and low tire pressure all pull that number down; steady pedalling in a lower assist level pushes it back up. Because the pack is removable, apartment and office riders can charge it away from the bike and treat the full range as available every morning.
Comfort comes from three layers working together. The telescopic front fork uses progressive spring rates to soak up sharp hits, the rear coil-over shock carries adjustable preload so it can be matched to rider weight, and the 4.0 in tires cushion the small, high-frequency vibration that suspension alone never quite removes. On a long ride, that stack is what leaves you fresher than a rigid fat bike would.
Key Features
1000 W High-Torque Brushless Hub Motor
The motor is built into the wheel hub, so drive reaches the ground without a secondary chain or belt and there is essentially nothing to service. Sealed construction resists dust and moisture, and the brushless design converts a high share of pack energy into forward motion. Torque arrives immediately, which is what makes merging into traffic or starting on an uphill grade feel effortless.
Removable 48 V 15 Ah Lithium Pack (720 Wh)
The pack lifts off the frame with a key so it can charge at home, at a desk, or anywhere with a standard outlet - a practical difference for anyone without power near their parking space. A full charge takes about 6-8 hours with the supplied charger. Integrated cell management guards against overcharging, overheating, and short circuits.
Front Fork and Rear Coil-Over Full Suspension
The telescopic front fork uses progressive spring rates so small bumps stay supple while big hits still find support. The rear coil-over shock carries adjustable preload, which lets you dial the ride to your weight and load rather than accepting a single factory setting. Together they cut the fatigue that builds over a long rough-surface ride.
Front and Rear Disc Brakes
Dual mechanical disc brakes hold their bite in wet and dry conditions alike. Large-diameter rotors shed heat during long descents so lever feel stays consistent, and independent front and rear circuits provide balanced deceleration plus redundancy. Motor cut-off switches disengage power the moment either lever is applied.
7-Speed Precision Gear System
Seven carefully spaced ratios let you match cadence to the ground under you - spin up a steep incline in a low gear, then stretch out on flat road in a tall one. The derailleur shifts crisply under load, and pedalling in the right gear meaningfully extends how far a single charge takes you.
20 x 4.0 in Fat Tires with Reflective Sidewalls
The wide contact patch improves grip on loose gravel, wet pavement, packed sand, and light snow, while the extra air volume absorbs road imperfections before the suspension has to. Deep multi-directional tread channels water and debris away from the contact surface, and reflective sidewall striping adds side-on visibility after dark.
LED Lighting and Rider Visibility
An LED headlight runs off the main pack, and integrated mounting points accept additional aftermarket lamps front and rear for riders who commute in the dark year-round. Combined with the reflective tire sidewalls, the bike stays visible from the side at junctions - the angle where cyclists are most often missed.
Rack Mounts and Everyday Carrying Capacity
Threaded mounting points at the rear triangle and fork accept a rack, panniers, or a basket without clamps or adapters. With a 330 lb total rating supported by reinforced welds and a heavy-duty spoke pattern, there is real headroom for a loaded commute or a weekly grocery run.
Full Specifications
Model
HKM-596307 | Electric Fat Tire Bike
Frame Material
6061 aluminum alloy, TIG-welded, low standover geometry
Motor
1000 W high-torque brushless hub motor, sealed construction
System Voltage
48 V DC
Battery
48 V 15 Ah lithium-ion (720 Wh), removable, with cell management
Charger
2 A smart charger, 100-240 V input
Charging Time
6-8 hours from empty, on or off the bike
Battery Cycle Life
Approximately 800 charge cycles to 80 percent capacity
Top Speed
30 mph (48 km/h)
Range Per Charge
28-31 mi (45-50 km), varies with terrain, rider weight, and assist level
Climbing Grade
Up to approximately 30 degrees with a solo rider
Peak Torque
85 N.m
Drivetrain
7-speed derailleur with index shifter
Brakes
Front and rear mechanical disc brakes with motor cut-off levers
Suspension
Telescopic front fork with progressive springs + rear coil-over shock with adjustable preload
Tires
20 x 4.0 in fat tires, multi-directional tread, reflective sidewalls
Wheels
20 in alloy rims, heavy-duty spoke pattern
Saddle
Padded comfort saddle, upright riding position, low standover height
Display
Handlebar LCD: speed, battery level, pedal-assist mode, trip distance, odometer
Throttle
Twist-grip throttle plus multi-level pedal-assist sensor
Lighting
LED headlight powered by the main battery; mounting points for auxiliary lamps
Load Capacity
330 lb (150 kg) rider plus cargo
Bike Weight
Approximately 68 lb (31 kg) including battery
Recommended Rider Height
5 ft 2 in to 6 ft 4 in (157-193 cm)
Certifications
CE, RoHS; battery cells UN38.3 tested
Battery, Range, and Charging
The 48 V 15 Ah pack stores roughly 720 Wh. Advanced cell management sits between the cells and the controller, cutting off charge current when the pack is full, limiting discharge if temperature climbs, and protecting against short circuits. That electronics layer is a large part of why a lithium pack keeps returning consistent range over hundreds of cycles rather than fading quickly.
Under typical conditions - moderate pedal-assist, flat to mildly hilly terrain, and a rider of roughly 165 lb (75 kg) - the pack returns 28-31 mi (45-50 km). Aggressive throttle use, steep climbs, headwinds, colder temperatures, and heavier loads reduce that figure. Riding in a lower assist level and keeping tire pressure correct are the two easiest ways to protect your range.
Tip: The pack charges on or off the bike, which makes this a practical choice for apartment dwellers and office commuters with no outlet near their parking space. Carry the pack inside, plug it in, and the bike is ready the next morning.
If the bike will sit unused for more than a month, store the pack at roughly 30-70 percent charge and top it up every 4-6 weeks. Charge indoors at room temperature - a heated room does far more for long-term pack health than any charging accessory.
Daily Use & Care
- Set tire pressure to suit the surface: firmer on tarmac for lower rolling resistance, softer on gravel, sand, or snow so the tread can flatten and grip.
- Adjust the rear shock preload when your load changes. A commute with loaded panniers needs more preload than an unladen weekend ride.
- Rinse the frame, rims, and drivetrain with fresh water after riding on salted roads or wet gravel, then dry and re-lubricate the chain.
- Check axle nuts and stem bolts for torque before the first ride of each week; hub-motor torque works fasteners loose faster than on a conventional bicycle.
- Inspect disc pad thickness monthly and replace when the friction material is under 1 mm. Check rotors for warping at the same time.
- Charge indoors at room temperature and unplug once the indicator turns green rather than leaving the charger connected for days.
- Store the bike sheltered and dry. It handles light to moderate rain well, but standing water and prolonged damp shorten the life of bearings and connectors.
What's in the Box
- 1 x HKM-596307 electric fat tire bike, partially pre-assembled
- 1 x 48 V 15 Ah removable lithium battery pack
- 1 x 2 A smart charger with 100-240 V input
- 2 x Battery keys
- 1 x Toolkit with hex wrenches and pedal spanner
- 1 x Pair of pedals
- 1 x LED headlight (pre-installed)
- 1 x Illustrated user manual and assembly guide
Frequently Asked Questions
What is the actual range I can expect on a single charge?+
Under typical conditions - moderate pedal-assist, flat to mildly hilly terrain, and a rider of roughly 165 lb (75 kg) - expect 28-31 mi (45-50 km). Aggressive throttle use, steep inclines, headwinds, cold weather, and heavier loads reduce the figure. Lower assist levels and correct tire pressure are the two most effective ways to extend it.
How long does the battery take to fully charge?+
Roughly 6-8 hours with the included charger. The pack can be charged while mounted on the bike or removed and charged separately, which suits apartment dwellers and office commuters without an outlet near their parking area.
Is this bike suitable for off-road use?+
Yes. The 20 x 4.0 in fat tires grip loose surfaces such as gravel, packed sand, forest trails, and light snow. The front and rear suspension absorbs shock from uneven ground, and the 1000 W motor has the torque for steep dirt climbs. It is a trail-capable bike rather than a motocross machine - avoid jumps and extreme downhill terrain.
What is the maximum weight capacity?+
The rated load is 330 lb (150 kg), including the rider and any cargo. The 6061 aluminum frame, reinforced welds, and heavy-duty spoke pattern on the fat wheels are what support that figure.
Does the bike require assembly on delivery?+
It arrives partially assembled. Most riders finish the job - handlebar, front wheel, pedals, and saddle - in 30 to 45 minutes with the included tools and illustrated instructions. Any local bike shop can perform the final assembly and safety check if you prefer.
Can I ride this bike in the rain?+
Yes, in light to moderate rain. The sealed brushless motor, protected battery housing, and corrosion-resistant aluminum frame are all built for wet-weather use. Avoid submersion, do not pressure-wash the bike, and store it somewhere dry to maximise component life.
How does the pedal-assist system work alongside the throttle?+
The assist sensor reads your pedalling and amplifies it across several support levels, from a gentle boost to strong electric propulsion. The twist throttle works independently, giving on-demand power without pedalling. Most riders throttle away from a stop and then settle into an assist level for the rest of the ride.
Is a license or registration required?+
Rules vary by state and locality. A 1000 W motor with a 30 mph top speed exceeds the limits of the common three-class e-bike framework in many US jurisdictions, which may place this bike in a moped or motor-driven cycle category. Check your state DMV and local ordinances before riding on public roads or bike paths.
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 Battery720 Wh PackFull Suspension6061 Aluminum330 lb Load
Why Choose the HKM-596307
Commuter Agility, Trail Capability
The same bike that threads a bike lane at 20 mph will carry you up a fire road on the weekend. Fat tires, full suspension, and a 1000 W motor cover both jobs without swapping wheels, tires, or gearing.
Suspension That Can Be Tuned
Preload adjustment on the rear shock means the bike can be set for a light rider on smooth tarmac or a heavier rider carrying panniers on gravel. Most bikes at this price ship with one fixed spring rate; being able to match the shock to your weight changes how the whole bike feels.
Two Independent Ways to Add Power
Pedal-assist amplifies your own input across several levels; the twist throttle bypasses the pedals entirely. Use assist to make a long ride feel easy, and the throttle for the moments - a junction, a driveway ramp - where you want instant torque with no cadence.
Sealed Hub Drive, Minimal Maintenance
No brushes to replace, no mid-drive gearbox, no secondary chain. The motor is sealed against dust and moisture and runs quietly enough that you hear the tires on the road rather than the drivetrain.
6061 Aluminum: Light, Strong, Corrosion-Resistant
A 6061 aluminum chassis carries a 330 lb rating while staying light enough to lift onto a rack or carry through a doorway, and it does not rust the way painted steel does after a winter of salted roads.
Built to Be Ridden All Year
Sealed motor construction, a protected battery housing, weather-resistant connectors, and disc brakes that work wet mean rain is part of normal service. Ride through a shower, dry the bike off, and carry on.
Controls & Indicators
Power Button
On the battery pack; hold to switch the system on and off
Mode Buttons
Up and down buttons on the display cycle through the pedal-assist levels plus zero assist
Twist Throttle
Right-hand grip; proportional response, works independently of the assist level
Speedometer
Live speed readout in mph, switchable to km/h in the settings menu
Battery Gauge
Segmented charge indicator with percentage readout on the LCD
Light Switch
Long-press the up button to toggle the LED headlight
Shifter
Right-hand index shifter for the 7-speed rear derailleur
Pre-Ride Safety Checklist
- Check tire pressure and set it for the surface you plan to ride - firmer for tarmac, softer for gravel, sand, or snow.
- Confirm the rear shock preload matches your weight and load; a heavily loaded bike on a light setting will bottom out on the first big hit.
- Squeeze both brake levers. They should firm up well before touching the grip, with both rotors spinning free when released.
- Confirm the battery is seated and locked and that the display shows the expected state of charge.
- Spin both wheels and check that the rims run true and nothing rubs the pads or the frame.
- Verify axle nuts are tight and the headset has no play when you rock the bike with the front brake applied.
- Shift through all seven gears while pedalling slowly to confirm the derailleur indexes cleanly.
- Test the throttle at walking pace in a clear area before riding in traffic, and wear a helmet rated for the speeds this bike reaches.
Quick Troubleshooting
The motor does not engage when I twist the throttle.+
Confirm the display is on and shows charge, the battery is locked into place, and both brake levers are fully released - the cut-off sensors disable the motor while either lever is pulled. If the display shows an error code, note it and contact support.
Range dropped noticeably compared with when it was new.+
Check tire pressure first, then temperature - cold reduces available capacity temporarily. Consider whether your route or assist habits have changed. If range is down more than 30 percent year-round after many charge cycles, the pack may be approaching the end of its service life.
The disc brakes feel weak or pull to one side.+
Mechanical disc brakes need occasional cable tension adjustment as the pads wear. Turn the barrel adjuster at the lever a quarter turn at a time until the bite point returns, and recentre the caliper over the rotor if only one pad is contacting.
The rear shock bottoms out on bumps.+
Increase the preload on the coil-over collar. If it still bottoms out at maximum preload, you are likely carrying more weight than the current spring is rated for - reduce cargo or fit a firmer spring.
The chain skips under hard pedalling.+
The derailleur indexing is likely out of adjustment, or the chain and cassette are worn. Turn the barrel adjuster a quarter turn at a time to realign. If skipping happens only in the smallest cogs, replace the cassette along with the chain.
The display shows an error code and the bike will not move.+
Power the system off, wait 30 seconds, and switch it back on. If the code returns, note the exact code and the conditions that produced it, then contact support - codes map to specific faults in the controller, motor, or throttle circuits.
Certifications & Standards
The HKM-596307 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 by air, sea, and road.
- 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 bicycle capable of 30 mph. Read the manual fully before the first ride and practise throttle control in an open, traffic-free area until the response feels predictable. Full suspension and fat tires make rough ground feel calm, which can disguise how quickly the bike is actually travelling - watch the speedometer on unfamiliar trails.
- Wear a helmet on every ride. At 30 mph a bicycle helmet is the minimum; many riders choose a certified motorcycle or downhill helmet at these speeds.
- Do not exceed the 330 lb (150 kg) load capacity, which includes the rider and all cargo.
- Check local law before riding on public roads or paths. A 1000 W motor with a 30 mph top speed may place this vehicle outside standard e-bike classifications in your area.
- Bed in the disc pads with 10-15 progressive stops during the first few rides before riding at full speed.
- Avoid riding through standing water deep enough to reach the hub motor or the battery housing, and never pressure-wash the bike.
- Charge only with the supplied charger, indoors, at room temperature, and on a non-flammable surface. Do not leave a charging battery unattended overnight.
- 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; wide tires add grip but do not remove the risk of losing traction.
HKM-596307 · 1000 W high-torque brushless hub motor · 48 V 15 Ah removable lithium (720 Wh) · 30 mph top speed · 28-31 mi range · 20 x 4.0 in fat tires · 330 lb (150 kg) load capacity · 6061 aluminum frame · front fork and rear coil-over suspension · front and rear disc brakes · 7-speed drivetrain. Specifications are provided for reference; actual performance varies with rider weight, terrain, tire pressure, temperature, and riding style. Range figures are measured under moderate pedal-assist on level pavement. 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.
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.
