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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
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Description
HKM-349971 750W Off-Road Electric Mountain Bike with 20-Inch Fat Tires for Adults - High Speed & Eco-FriendlyHKM 349971 750W OffRoad Electric Mountain Bike Engineered for the modern adventurerdominate rugged trails and city streets with relentless 750W power, full suspension, and fattire confidence. No terrain offlimits. 750W Brushless Motor Instant torque, whisperquiet operation, and sustained hillclimbing power. 13Ah Lithium Battery Downtube integrated, 50 km range, fast 7hour charge. 18. 631 mph Top Speed 3050 km h. Three assist levels, throttle boost for
HKM-349971 750W Off‑Road Electric Mountain Bike
Engineered for the modern adventurer—dominate rugged trails and city streets with relentless 750W power, full suspension, and fat‑tire confidence. No terrain off‑limits.
Unleash Your Trail Potential
The HKM-349971 redefines off‑road e‑biking with a purpose‑built 750W brushless motor that delivers peak efficiency and instant acceleration. Its intelligent pedal‑assist system senses your effort and amplifies it seamlessly, while a thumb throttle gives on‑demand power for steep ascents or quick getaways. Whether carving singletrack or commuting, the balance of torque and speed—up to 31 mph (50 km/h)—keeps every ride exhilarating yet controlled.
At its core, a high‑capacity 13Ah lithium battery sits flush inside the down tube, preserving the bike’s sleek silhouette and protecting cells from the elements. With an IP54 waterproof rating, you can charge through puddles and light rain without hesitation. The battery management system (BMS) continuously monitors temperature, voltage, and current, prolonging lifespan and ensuring consistent range of 31 miles (50 km).
Engineering That Dominates
750W Brushless Powertrain
The high‑torque brushless motor delivers up to 80 Nm of rotational force, easily climbing grades of 25° without pedal assist. Its sine‑wave controller ensures smooth, silent acceleration—no cogging, no vibration. Choose from Eco, Trail, or Turbo modes to balance range and performance, or engage the throttle for instant full‑power delivery. The motor is IP65 rated, so dust and water splashes are no concern.
13Ah Smart Lithium Battery
Hidden within the aluminum down tube, the 48V 13Ah lithium‑ion pack uses automotive‑grade cells (18650) for high energy density and longevity. The integrated BMS protects against overcharge, over‑discharge, and short circuits. A full recharge takes only 7 hours with the included 2A smart charger. The lockable, removable battery design adds security and convenience—charge it on or off the bike.
Full Suspension System
Front suspension fork with 80mm of travel and a rear shock absorber work in unison to soak up trail chatter and hard landings. Adjustable preload lets you tune the ride for your weight and terrain. This dual‑shock setup dramatically improves traction and comfort, keeping the tires planted on uneven surfaces and reducing rider fatigue on long adventures.
Dual Disc Brakes
160mm mechanical disc brakes front and rear provide confident, progressive stopping power in wet, muddy, or dusty conditions. The large rotors dissipate heat quickly, reducing fade on long descents. Ergonomically designed brake levers offer precise modulation, so you can scrub speed smoothly or stop on a dime when the trail demands it.
20‑Inch Fat Tires (20" x 4.0)
These massive 4‑inch wide tires run at low pressure (5–30 PSI) to create a massive contact patch, delivering incredible traction and floatation. The aggressive tread pattern bites into loose dirt, gravel, sand, and snow, while the puncture‑resistant casing reduces the chance of flats. Combined with the double‑wall alloy rims, they’re built to take abuse and keep rolling.
IP54 Weather Protection
Ride through rain, splash through puddles, or wash off mud without worry. The IP54 rating means the entire electrical system is protected against dust ingress and water spray from any direction. Sealed connectors, gasketed displays, and a corrosion‑resistant frame ensure long‑term reliability in all seasons.
Rugged ABS‑Iron Frame
The fusion of high‑strength iron and lightweight ABS plastic creates a frame that’s both impact‑resistant and agile. The geometry is tuned for confident off‑road handling with a low standover height, making it accessible for a wide range of riders. The frame passed rigorous fatigue testing to withstand the stresses of trail riding and jumps.
Technical Specifications
Frequently Asked Questions
How does the 750W motor compare to typical e‑bike motors?
Can I ride in rain or through puddles?
How do I charge the battery and how long does it last?
Are fat tires necessary for off‑road riding?
Is the bike heavy? Can I lift it onto a car rack?
Does it come assembled?
Free Shipping
On all orders, every day. No minimum purchase required. Delivered to your door.
180‑Day Purchase Protection
Extended peace of mind. If any manufacturing defect arises, we’ll repair or replace.
30‑Day Money‑Back Guarantee
Ride it, test it, love it—or return it within 30 days for a full refund.
24‑Month Warranty Service
Comprehensive coverage on frame, motor, and battery. Prompt support when you need it.
*Range and speed figures may vary based on rider weight, terrain, assist level, tire pressure, and weather conditions. All specifications are subject to change without notice. The HKM-349971 is intended for off‑road use; please comply with local regulations regarding e‑bike classification and usage on public roads.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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