Electric Bicycles >>
HKM-9195731 48V 20Ah Electric Full-Suspension Mountain Bike, 750W Rear Hub Motor, 28 mph Top Speed, 26 x 4.0 in Fat Tires
HKM-9195731 Electric Full-Suspension Mountain Bike
The HKM-9195731 combines a 750 W brushless rear hub motor with a 48 V 20 Ah lithium pack (960 Wh) in a full-suspension aluminum frame built for trail and all-terrain riding. The 26 x 4.0 in KENDA fat tires grip loose surfaces from gravel to light snow, while a four-bar linkage rear suspension and lockable front fork absorb impacts that would jar a rigid frame. Hydraulic disc brakes front and rear, a Shimano 7-Speed derailleur drivetrain, and an LCD display complete a bike suited for weekend trails, fire-road tours, and daily commutes over mixed surfaces.
Overview
The HKM-9195731 is built around a 6061 aluminum alloy frame with a four-bar linkage rear suspension system. The linkage design keeps the rear wheel tracking the ground through its travel while isolating the rider from sharp impacts -- rocks, roots, and washboard sections that would transmit directly into the spine on a hardtail. The frame is rated for a combined rider-and-cargo load of 330 lb.
Power comes from a 750 W brushless rear hub motor with a 1200 W peak rating for short bursts on climbs and starts from a standstill. The motor drives through the rear hub so there is no chain between motor and ground, keeping maintenance low and drive losses minimal. A 48 V 20 Ah lithium pack stores roughly 960 Wh of energy -- above average for this class -- which translates into longer rides between charges.
Real-world range depends heavily on terrain and how much you pedal. Throttle-only on flat pavement at moderate speed returns around 35-45 mi. Moderate pedal-assist on the same surface stretches that to 55-65 mi. Aggressive pedaling on level ground with low assist has been measured at 70 mi from a full charge. Cold weather, soft tires, steep climbing, and continuous high-throttle use all reduce those numbers.
The 26 x 4.0 in KENDA fat tires run at low pressure (10-15 psi off-road) to spread weight over a large contact patch. The same wide casing adds traction and comfort on gravel, dirt paths, sand, and packed snow where a narrower tire would lose grip. The four-bar linkage rear suspension works with a lockable front suspension fork to smooth out the ride; most riders leave both active on trails and lock the front out for efficient pedaling on smooth pavement.
Key Features
A 750 W brushless motor (1200 W peak) is laced into the rear wheel hub. There is no chain or belt between the motor and the ground, so drive losses stay low and maintenance is limited to keeping the axle nuts torqued. Peak output handles a 25 degree slope with a solo rider.
The removable pack stores 960 Wh of energy -- enough for a full week of short commutes or a long day on the trails. It lifts out with a key for indoor charging. A full recharge takes about 6-7 hours on the supplied 2 A charger.
A four-bar linkage design keeps the rear wheel tracking smoothly through its travel while isolating the rider from impacts. Unlike a single-pivot design, the linkage maintains consistent chain growth and brake anti-squat for predictable handling under power and braking.
Sealed hydraulic lines actuate both calipers. Lever effort stays light and predictable when the rotors get hot, and there are no cables to stretch or corrode. Power-off brake levers cut motor drive instantly when either lever is pulled.
A 7-Speed Shimano drivetrain with index shifter gives usable pedaling cadence from walking pace up to cruising speed. The wide gear range lets you add human power when you want to extend range or climb under your own effort.
Run at low pressure the wide casing spreads weight over a large contact patch. KENDA's multi-purpose tread grips gravel, dirt, sand, and packed snow where a narrower tire would skate around on the loose surface.
The air/oil front fork features mechanical lockout for smooth-road efficiency. The rear coil shock is tuned for the linkage leverage ratio and can be adjusted to rider weight. Together they absorb what the fat tires cannot.
The butted and welded 6061 aluminum alloy frame keeps weight reasonable while providing the stiffness a full-suspension chassis demands. Internal cable routing keeps the look clean and reduces snag points on tight trails.
The Charge That Lasts
The 20Ah cell pack gives the HKM-9195731 the reserve to finish the day without a mid-route charge.
We would rather over-build what you cannot see than under-deliver what you can. What looks simple took careful engineering, because less is the harder thing to earn.
Full Specifications
Battery, Range, and Charging
The 48 V 20 Ah pack stores 960 Wh of energy. For context, most commuter e-bikes ship with 400-600 Wh, so this pack runs roughly 50-100 percent above the usual energy budget. That headroom is what lets the bike handle a throttle-only commute or a long trail ride without range anxiety at the end of the day.
Real-world range depends on four variables more than anything else: how much you pedal, rider and cargo weight, tire pressure, and terrain. Throttle-only riding on flat pavement at moderate speed lands in the 35-45 mi band. Moderate pedal-assist on the same terrain regularly returns 55-65 mi. Aggressive pedaling at low assist on level ground has been measured at 70 mi from a full charge. Cold weather below 40 F (4 C) temporarily reduces available capacity by 10-20 percent; it returns once the pack warms up.
The pack unlocks with the supplied key and lifts out of the down tube in a few seconds, so you can charge it at a desk while the bike stays locked outside. Two keys are included. Charging with the pack installed works equally well -- the charge port is accessible from the drive side without removing anything.
Daily Use & Care
- Run tire pressure at 10-15 psi for off-road traction; increase to 18-22 psi for paved commutes to reduce rolling resistance.
- Rinse the frame, rims, and drivetrain with fresh water after riding on muddy trails or salted roads. Road film attacks aluminum fasteners over time if left in place.
- Check that both axle nuts and the stem bolts are torqued before the first ride of each week. Hub-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 dusty conditions.
- Inspect brake pad thickness monthly. Hydraulic pads wear silently until they are gone; replace when the friction material is under 1 mm.
- Charge indoors at room temperature. Unplug the charger once the indicator turns green rather than leaving it connected for days.
- Keep the display and charge port covers closed when the bike is parked outside so moisture stays out of the connectors.
What's in the Box
- 1 x HKM-9195731 electric mountain bike, approximately 85 percent pre-assembled
- 1 x 48 V 20 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 folding pedals
- 1 x Set of fenders (front and rear)
- 1 x User manual and assembly guide
Frequently Asked Questions
How much assembly is required out of the box?+
What kind of terrain can this bike handle?+
What is the actual range I should plan for?+
Is a license or registration required?+
How long does the battery take to charge?+
Can I pedal it if the battery runs out?+
How does the four-bar suspension compare to a single-pivot design?+
Is the battery removable for indoor charging?+
Service & Policies
Why Choose the HKM-9195731
The four-bar linkage rear suspension and lockable front fork turn broken pavement, gravel shortcuts, and dirt trails into comfortable surfaces. Lock the fork out for efficient pedaling on smooth roads; open everything up when the trail gets rough.
The 26 x 4.0 in KENDA fat tires run at pressures as low as 10 psi, creating a large contact patch that conforms to uneven surfaces. Sand, snow, loose gravel, and mud are all rideable where a narrow tire would sink or slide.
Use the thumb throttle for immediate acceleration from a stop, or shift through the 7-Speed Shimano cassette and pedal to extend range. Most owners mix both -- throttle to clear obstacles, pedals for cruising efficiency.
The motor lives in the rear hub with no mid-drive gearbox, belt, or extra chain to service. Fewer moving parts in the drive path means less to maintain and a notably quiet ride compared with mid-drive systems.
At 960 Wh, the 48 V 20 Ah pack holds well above the class-average energy. That means fewer charge stops per week for commuters and longer loop distances for recreational riders before needing to find an outlet.
Sealed electrical connectors, a covered and lockable battery compartment, and hydraulic brake lines that cannot corrode in road film make sense for a bike that transitions between pavement, gravel, and light trail use daily.
Controls & Indicators
Pre-Ride Safety Checklist
- Check tire pressure and set it for the terrain: 10-15 psi for off-road, 18-22 psi for pavement.
- Squeeze both brake levers. They should firm up well before reaching the grip, with no sponginess indicating air in the hydraulic line.
- 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 brake pads or the frame.
- Verify the quick-release levers and axle nuts are tight, and that the headset has no play when you rock the bike with the front brake applied.
- Test the throttle at walking pace in a clear area before riding in traffic or on trails.
- Switch on the headlight and tail-light if you will be riding near dusk, and wear a helmet rated for the speeds this bike reaches.
- Check that the front fork lockout lever moves freely and the rear shock has no visible oil leaks.
Quick Troubleshooting
The motor does not engage when I press the throttle.+
Range dropped noticeably compared with when it was new.+
The brakes feel spongy at the lever.+
The chain skips under hard pedaling.+
The rear suspension makes noise over bumps.+
The display shows an error code and the bike will not move.+
Certifications & Standards
The HKM-9195731 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 28 mph. Read the manual fully before the first ride and practice throttle control in an open, traffic-free area until the response feels predictable.
- Wear a helmet on every ride. At 28 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 any cargo.
- Check local law before riding on public roads or paths. A 750 W motor with 1200 W peak output and 28 mph top speed may place this vehicle outside standard e-bike classifications in your area.
- Bed in the brake pads with 10-15 progressive stops during the first few rides before riding at full speed.
- Do not ride through water deep enough to reach the hub motor or the battery compartment.
- 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; fat tires add grip but do not eliminate the risk of losing traction.
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.
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Manufacturing Defects
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Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
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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.
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Request a return within 30 days of delivery.
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What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
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Claims assessed within 1 business day.
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Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
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