2000W Full-Suspension 26 in Fat-Tire E-Bike
HKM-7256659 Electric Fat-Tire Bike
The HKM-7256659 is a full-suspension 26 x 4.0 in fat-tire electric bike with a 2000 W drive system and a 48 V 23 Ah pack. Both wheels are suspended for traction on technical terrain, a 7-speed Shimano drivetrain keeps the motor usable, and hydraulic disc brakes rein it in from 34 mph. It is built for serious off-road use and heavy loads.
2000 W Drive System48 V 23 Ah Pack34 mph Top Speed31-55 mi Range26 x 4.0 in Fat TiresFull Suspension7-Speed ShimanoHydraulic Disc Brakes
Motor
2000 W
70-80 N.m torque
Battery
48 V 23 Ah
1104 Wh pack
Top Speed
34 mph
55 km/h
Range
31-55 mi
50-100 km per charge
Tires
26 x 4.0 in
Aggressive off-road tread
Load Capacity
330 lb
150 kg rider plus cargo
Overview
The HKM-7256659 is a full-suspension fat-tire electric bike built around a 2000 W drive system rated at 70-80 N.m, with a 48 V 23 Ah pack good for 31-55 mi. Both wheels are suspended for traction on technical terrain.
A 7-speed Shimano drivetrain gives usable climbing and cruising gears, and the 26 x 4.0 in aggressive tread floats over sand and snow and bites loose climbs. A hydraulic front fork and rear linkage keep the wheels planted.
Hydraulic disc brakes with motor cut-off levers bring the bike to a controlled stop from 34 mph, and LED lighting powered from the main pack keeps it ready for a dark ride home. The rear linkage is what separates this from a hardtail.
Standard rack and mudguard mounts are present, so the HKM-7256659 works as a commuter during the week and a trail bike at the weekend. Keep total load inside the 330 lb (150 kg) capacity.
Key Features
2000 W Brushless Front Hub Motor
A 2000 W brushless front hub motor drives the HKM-7256659. There is no gearbox or second chain between the motor and the road, so drive losses stay low and routine maintenance comes down to keeping the axle hardware torqued and the drivetrain clean.
48 V 23 Ah Lithium Pack (1104 Wh)
The 48 V 23 Ah pack stores 1104 Wh of usable energy, which is what makes the quoted 31-55 mi (50-100 km) window realistic rather than optimistic. Charging from empty takes 4-6 hours on the supplied charger, and partial top-ups take proportionally less - there is no need to run the pack down before plugging in. A battery management board supervises cell balance, over-charge, over-discharge, and temperature so the pack is protected during both fast riding and long storage.
Full Suspension, Both Ends
A fork up front and a rear linkage keep both wheels in contact with the ground over roots and rocks, so the HKM-7256659 climbs and descends more surely than a hardtail and the rider arrives less beaten up.
Hydraulic disc brakes, Front and Rear
Sealed hydraulic lines actuate both calipers, so lever effort stays light and predictable when the rotors heat up on a long descent and there are no cables to stretch or corrode. Motor cut-off switches in both levers kill drive the instant either lever moves, which matters on a machine that reaches 34 mph.
7 Speeds Behind 2000 W
Seven sprockets give usable climbing and cruising gears, and the 2000 W drive has the grunt to hold speed on the flat. Pick a low gear on a climb and the motor stays in its efficient band.
26 x 4.0 in Aggressive Tread
The 4.0 in casing floats over sand and snow, and the aggressive tread bites loose climbs. On tarmac, raising pressure firms the casing and reclaims rolling efficiency.
LCD and Integrated Lighting
The backlit LCD reports speed, charge, assist level, and trip distance, and switches units in the settings menu. LED lighting runs from the main pack, so night riding needs no separate batteries.
Trail Bike That Commutes
With full suspension doing the work, the HKM-7256659 is as comfortable on a potholed commute as on a fire road. Standard mounts take a rack and mudguards for weekday use.
Full Specifications
Model
HKM-7256659 | Electric Fat-Tire Bike
Frame Material
Aluminum alloy full-suspension frame with rear linkage
Motor
2000 W brushless drive system, 70-80 N.m rated torque
System Voltage
48 V DC
Battery
48 V 23 Ah lithium-ion (1104 Wh), removable and lockable
Charger
2 A smart charger, 100-240 V input
Charging Time
4-6 hours from empty
Battery Cycle Life
Approximately 800 charge cycles to 80 percent of rated capacity
Top Speed
34 mph (55 km/h)
Range Per Charge
31-55 mi (50-100 km), varies with terrain, rider weight, tire pressure, and assist level
Climbing Grade
Up to approximately 32 degrees in the lowest gear
Peak Torque
52-59 lb-ft (70-80 N.m)
Drivetrain
7-speed Shimano derailleur with index shifter
Brakes
Hydraulic disc brakes, front and rear, with motor cut-off levers
Suspension
Front suspension fork and rear suspension linkage, both with rebound adjustment
Tires
26 x 4.0 in fat tires with an aggressive off-road tread
Wheels
26 in double-wall alloy rims, stainless steel spokes
Saddle and Contact Points
Padded saddle with quick-release seat post clamp, rubber grips
Display
Backlit LCD: speed, charge, assist level, trip distance, odometer
Throttle and Assist
Twist-grip throttle plus multi-level pedal-assist
Lighting
LED headlight and tail-light powered from the main pack
Load Capacity
330 lb (150 kg) rider plus cargo
Vehicle Weight
Approximately 86 lb (39 kg) including battery
Recommended Rider Height
5 ft 6 in to 6 ft 4 in (168-193 cm)
Certifications
CE, RoHS; battery cells UN38.3 tested
Battery, Range, and Charging
The 48 V 23 Ah pack holds 1104 Wh. Most mainstream commuter e-bikes ship with 400-600 Wh, so this pack sits well above that band, and the extra energy is what turns a nervous end-of-day commute into an ordinary one.
Real-world range moves with four things more than anything else: how much you pedal, total rider and cargo weight, tire pressure, and terrain. Throttle-heavy riding at the top of the speed range sits at the low end of the 31-55 mi (50-100 km) window. Moderate assist on rolling terrain lands in the middle. Light assist on level ground with a steady cadence is what produces the high figure. Cold weather below 40 F (4 C) temporarily trims available capacity by 10-20 percent; the capacity comes back once the pack warms up again.
Tip: Store the pack between 30 and 70 percent state of charge if the bike will sit unused for more than a month, and top it up every 4-6 weeks. Charging indoors at room temperature rather than in an unheated garage measurably extends usable pack life.
The charge port is reachable without removing anything, and the supplied 2 A charger runs on 100-240 V so it works on household power anywhere. Two keys are included. Charge after a ride rather than the next morning: a pack that goes into storage warm and full ages faster than one that is topped up and then left at room temperature.
Daily Use & Care
- Tire pressure sets the character of the ride. Run the upper half of the sidewall pressure range on pavement for lower rolling resistance, and drop toward the lower half on gravel or dirt so the casing can flatten and grip.
- Rinse the frame, rims, and drivetrain with fresh water after riding on salted roads or wet gravel. Road film attacks aluminum and steel fasteners over time if it is left in place.
- Check the axle hardware and stem bolts before the first ride of each week. Motor torque works fasteners loose faster than on a conventional bicycle.
- Wipe and re-lubricate the chain every 100-150 mi, or after any ride through standing water or heavy dust. A dry chain wears the Shimano cassette far faster than a clean, oiled one.
- Inspect brake pad thickness monthly. Pads wear silently until they are gone; replace the friction material once it is under 1 mm.
- Charge indoors at room temperature and unplug once the charger indicator turns green rather than leaving it connected for days at a time.
- Keep the display boot and the charge-port cover closed when the bike is parked outside so moisture stays out of the connectors.
- Torque the 26 in spoke nipples and check wheel true after the first 50 mi. New wheels bed in, and a 86 lb machine loads the spokes harder than a conventional bicycle does.
What's in the Box
- 1 x HKM-7256659 bike, approximately 85 percent pre-assembled
- 1 x 48 V 23 Ah lithium battery pack
- 1 x 2 A smart charger with 100-240 V input
- 2 x Battery or lock keys
- 1 x Pair of pedals
- 1 x Toolkit with hex wrenches and pedal spanner
- 1 x User manual and assembly guide
Frequently Asked Questions
How much assembly is required out of the box?+
The bike ships approximately 85 percent assembled. What remains is fitting the front wheel, straightening and bolting the handlebar, installing the pedals and saddle, and checking brake alignment and rotor clearance. Budget 30-45 minutes with the supplied tools, and have a shop check torque and bed the brakes in if you are not comfortable doing that yourself.
What range should I actually plan for?+
Plan for 31-55 mi (50-100 km). Headwinds, hills, cold weather, heavier riders, and low tire pressure all pull the figure down; a warm day, firm tires, and a steady pedaling cadence push it back up.
How long does the battery take to charge?+
About 4-6 hours with the supplied charger from a fully empty pack. Partial top-ups take proportionally less time, and the pack does not need to be run down before recharging. Charging with the pack on board works exactly as well as charging it on a bench.
What does full suspension add over a hardtail?+
Both wheels stay in contact with the ground over rough terrain, so you keep traction for climbing and control for descending. The trade is a little extra weight and pivot bearings to service, which the HKM-7256659 repays in capability.
Can I add a rack and mudguards?+
The frame carries standard mounts for a rear rack and full-length mudguards. Keep total load inside the 330 lb (150 kg) capacity, counting rider and cargo.
Is a license or registration required?+
Rules vary by state and by city. The common three-class US e-bike framework caps assisted speed at 20 or 28 mph and motor output at 750 W, and this machine is documented at 34 mph with a 2000 W rating, so it may fall outside class limits where you live and be treated as a moped or motor-driven cycle. Check your state DMV and local ordinances before riding on public roads or shared paths.
Can I ride it with the motor switched off?+
Yes. The 7-speed Shimano drivetrain works independently of the motor. At roughly 86 lb the machine is heavy for unassisted pedaling, so getting home on a flat pack is slow but entirely possible on level ground.
Is the battery removable for indoor charging?+
Yes. It unlocks with the supplied key and lifts out for charging at a desk while the bike stays locked outside. You can also charge it in place through the frame-side port.
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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 Battery1104 Wh PackHydraulic disc34 mph31-55 mi Range
Why Choose the HKM-7256659
2000 W, Two Wheels Planted
A 2000 W drive system puts serious torque down, and full suspension keeps both wheels tracking so the power becomes forward motion rather than wheelspin. The HKM-7256659 climbs grades that stop lighter bikes.
Full Travel, Real Traction
Rear suspension is not just comfort here; it keeps the rear wheel down and driving on technical terrain. With both ends active, the bike handles rough ground with confidence.
Two Ways to Ride
Twist the throttle for immediate, clutch-free acceleration, or shift through the 7-speed Shimano drivetrain and pedal. Most owners mix both: throttle to pull away from a stop, gears and pedal-assist to stretch the range on the flat, and full power for the hills.
Quiet Under Power
The motor lives inside the rear wheel hub. No mid-drive gearbox, no belt, and no extra chain sit in the drive path, so there is very little to service and the ride stays notably quiet even at full power.
A Practical Alternative to a Second Car
A full 1104 Wh charge costs a few cents of household electricity and covers 31-55 mi (50-100 km). There is no fuel, no oil change, and no emissions test. For trips under 10 mi the bike is usually quicker door to door than a car once parking is counted, and it removes a daily short-trip journey from the vehicle that costs the most to run.
Stable Fat Platform
The 26 x 4.0 in tire is the stable, forgiving choice for heavy off-road use. It tracks straight through chop and floats over soft ground, which is why the HKM-7256659 feels sure-footed.
Controls & Indicators
Power Button
Located on the battery pack; hold to switch the system on and off
Assist Level Buttons
Up and down buttons on the display cycle through the pedal-assist levels plus zero assist
Throttle
Right-hand twist grip; proportional response, works independently of the assist level
Speedometer
Live speed readout in mph, switchable to km/h in the display settings menu
Battery Gauge
Segmented state-of-charge indicator plus voltage or percentage readout on the display
Light Switch
Long-press the up button to toggle the LED headlight and tail-light
Shifter
Right-hand index shifter for the 7-speed Shimano rear derailleur
Pre-Ride Safety Checklist
- Check tire pressure and set it for the surface you plan to ride; pressure has more effect on range and grip than any other single adjustment you can make in 30 seconds.
- Squeeze both brake levers. They should firm up well before touching the grip, with no sponginess or long lever travel.
- Confirm the battery is seated and locked and that the display shows the state of charge you expect.
- Spin both wheels and check that the rims run true and that nothing rubs a brake pad or the frame.
- Check that the axle hardware is tight and that the headset has no play when you rock the machine with the front brake applied.
- Test the throttle at walking pace in a clear, traffic-free area before riding in traffic.
- Switch on the headlight and tail-light if you will be riding near dusk, and wear a helmet rated for the speed this machine reaches.
- Confirm that the display reads the assist level you expect before you set off, so the first throttle input is not a surprise.
Quick Troubleshooting
The motor does not engage when I twist the throttle.+
Confirm the display is on and showing charge, the battery is locked into place, and both brake levers are fully released - the brake cut-off sensors disable drive while a lever is pulled. If the display shows an error code, note the code and contact support.
Range dropped noticeably compared with when it was new.+
Check tire pressure first; a soft tire on pavement is the most common cause. Then consider temperature, because cold reduces available capacity temporarily. If range is down more than 30 percent year-round after many charge cycles, the pack is approaching the end of its service life.
The brakes feel spongy or the lever pulls to the grip.+
Sponginess in a hydraulic system normally means air in the line or a fluid leak. Stop riding and have the system bled and inspected - do not continue on a 34 mph machine with compromised brakes.
The chain skips under hard pedaling.+
The Shimano indexing is out of adjustment or the chain and cassette are worn. Turn the barrel adjuster a quarter turn at a time to realign the indexing. If the chain skips only in the smallest cogs, the cassette is worn and should be replaced together with the chain.
There is a rattle or knock from the suspension over bumps.+
Check that the axle and any quick-release lever are fully closed and that the wheel is seated in the dropouts. If the noise persists, inspect the stanchions or shock body for scoring and have a shop service the unit.
The display shows an error code and the machine will not move.+
Switch 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 - error codes map to specific faults in the controller, motor, throttle, or battery circuits.
Certifications & Standards
The HKM-7256659 is produced in a facility operating under an ISO 9001 quality management system. The cells and the assembled pack carry the test documentation normally required for lithium-ion transport and retail sale.
- CE - European Conformity marking covering the electrical assembly.
- RoHS - Restriction of Hazardous Substances compliance for the electronics.
- UN38.3 - Lithium battery transport safety testing, required for 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 2000 W machine documented at 34 mph. Read the manual before the first ride and practise throttle control and braking in an open, traffic-free area until the response feels predictable. Braking distance grows quickly with speed and with load, so leave more room than a conventional bicycle needs.
- Wear a helmet on every ride. At 34 mph a standard bicycle helmet is the minimum; many riders choose a certified downhill or motorcycle helmet at these speeds.
- Do not exceed the 330 lb (150 kg) load capacity, which includes the rider, any cargo, and anything carried on a rack.
- Check local law before riding on public roads or shared paths. A 2000 W system with a 34 mph top speed may sit outside standard e-bike classifications in your area.
- Bed the brake pads in with 10-15 progressive stops from moderate speed during the first few rides before riding at full speed.
- Do not ride through water deep enough to reach the motor housing or the battery compartment.
- Charge only with the supplied charger, indoors, at room temperature, on a non-flammable surface, and do not leave a charging pack unattended overnight.
- Do not open, puncture, or modify the battery pack. Damaged lithium cells can vent and ignite.
- Reduce speed substantially on gravel, wet surfaces, and steep descents. Wide tires add grip but they do not change the physics of losing traction at speed.
HKM-7256659 · 2000 W front hub motor · 48 V 23 Ah lithium (1104 Wh) · 34 mph top speed · 31-55 mi range · 26 x 4.0 in fat tires · 330 lb (150 kg) load capacity · hydraulic disc brakes · aluminum full-suspension frame. 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.
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