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Description
HKM-745491 60V 6000W Off-Road Fat Tire Electric Mountain Bike - 17-Inch Wheels, 30AH Lithium Battery, Hydraulic Disc Brakes, Max Speed 70Km/hHKM 745491 Ultimate OffRoad Electric Mountain Bike Power Meets Precision 6,000W Brushless Motor 250 Nm Torque 184 lbft 43. 5 mph Top Speed 70 km h 37+ mi Range 60+ km Built to conquer the most demanding trails, the HKM 745491 redefines what an electric mountain bike can achieve. Its 6,000 watt brushless motor unleashes instant torque and silent acceleration, while the massive 30Ah lithium battery ensures you stay out longer. Every component from the
HKM-745491
Ultimate Off‑Road Electric Mountain Bike — Power Meets Precision
Built to conquer the most demanding trails, the HKM-745491 redefines what an electric mountain bike can achieve. Its 6,000-watt brushless motor unleashes instant torque and silent acceleration, while the massive 30Ah lithium battery ensures you stay out longer. Every component — from the hydraulic disc brakes to the IPX65 weather‑sealed electronics — is engineered for uncompromising durability and performance. Whether you’re carving singletrack or powering through loose gravel, this fat‑tire beast delivers confidence at every turn.
⚡ Core Technologies
6,000W Brushless Motor
High‑efficiency permanent magnet motor delivers relentless torque. Silent, zero‑maintenance, and built for steep climbs and rapid acceleration.
30Ah Lithium Battery
Grade‑A Li‑ion cells with smart BMS. Provides 37+ miles (60+ km) of range per charge. Removable for convenient off‑bike charging.
250 Nm Maximum Torque
184 lb‑ft of twisting force conquers inclines up to 35°. No hill is too steep — the torque band is optimized for off‑road grit.
Hydraulic Disc Brakes
Dual‑piston calipers with 203mm rotors deliver confident stopping power from 43.5 mph (70 km/h) to zero, wet or dry.
17‑inch Wheels & Fat Tires
Oversized 4.5″ wide knobby tires maximize grip on sand, snow, and rock. The 17‑inch rim strengthens lateral stability at high speeds.
IPX65 Waterproof Rating
Electronics and connections are sealed against dust and low‑pressure water jets. Ride through rain and puddles without worry.
5‑Speed Gear System
Seamless manual shifting adapts cadence to terrain. Low gear for climbing, high gear for flat‑out speed — all with precise indexing.
Carbon Steel Frame
Engineered for high stress with reduced flex. Balances robust strength with a manageable 78 lb (35.4 kg) weight for a full‑size electric mountain bike.
📋 Technical Specifications
| Motor Type | 6,000W Brushless DC (BLDC) — Peak Output |
| Max Torque | 250 Nm (184 lb‑ft) |
| Top Speed | 43.5 mph (70 km/h) — electronically governed |
| Battery | 30Ah Lithium‑ion, 72V architecture, removable |
| Range | 37+ miles (60+ km) — depending on terrain & assist level |
| Charge Time | 6–8 hours (110–240V charger included) |
| Wheel Size | 17″ alloy rims with 4.5″ wide all‑terrain tires |
| Brakes | Hydraulic disc, 203mm rotors front & rear |
| Gear System | 5‑speed manual shift, thumb lever actuated |
| Frame Material | Carbon steel, hydroformed main triangle |
| Suspension | Front fork — coil spring with preload adjustment, 120mm travel |
| Waterproof Rating | IPX65 — protected against water jets |
| Max Load | 330 lbs (150 kg) — rider + cargo |
| Bike Weight | Approx. 78 lbs (35.4 kg) with battery |
| Display | Backlit LCD — speed, battery, odometer, assist level |
| Lighting | Integrated LED headlight & taillight, powered by main battery |
🏔️ Engineered for the Wild
Every ride on the HKM-745491 feels like an event. The instant torque delivery of the brushless motor is addictive — twist the throttle and the fat tires dig in, launching you forward with a silent surge. Unlike combustion engines, the electric powertrain requires zero warm‑up and emits no fumes, so you can explore nature preserves with a clear conscience. The cadence‑sensing pedal assist offers five levels of support, letting you dial in exactly how much sweat you want to trade for speed.
The 30Ah battery pack uses high‑discharge cells capable of sustaining the massive current draw of the 6,000W motor without voltage sag. Even under continuous load, the BMS actively balances cells and monitors temperature, prolonging battery lifespan. You can check remaining capacity at a glance on the handlebar LCD, and when it’s time to recharge, simply unlock the battery and carry it indoors.
The 17‑inch wheels wrapped in 4.5‑inch wide tires provide a contact patch that rivals many motorcycles. This footprint spreads the bike’s weight and reduces ground pressure, making it nearly impossible to sink into soft sand or mud. The aggressive tread pattern sheds debris quickly, while the reinforced sidewalls resist pinch flats when running low pressures. Whether you’re rock crawling or powering through snowy single‑track, you’ll appreciate the grip.
Combined with a rigid yet compliant carbon steel frame, the HKM-745491 tracks straight at high speed and remains composed during aggressive cornering. The geometry places the rider in an upright, controlled position — ideal for long days of exploration.
Stopping authority comes from hydraulic disc brakes with large 203mm rotors. The dual‑piston calipers generate consistent bite, and the sealed hydraulic lines ensure maintenance‑free operation for months. The IPX65 rating means all wiring harnesses, connectors, and the motor controller are impervious to rain, splashes, and even direct hose‑downs. Ride through creek crossings or muddy bogs without worrying about electrical faults.
An integrated LED headlight illuminates the trail ahead, while the rear light keeps you visible to others. Both are powered by the main battery, so you never have to worry about separate batteries dying unexpectedly.
The five‑speed gearbox shifts with a satisfying click, allowing you to maintain optimal cadence whether grinding uphill at 5 mph or cruising at 40+ mph. The thumb throttle and pedal‑assist modes work harmoniously — use throttle only for a motorcycle‑like experience, or combine with manual gears for an engaging ride. The wide, padded saddle and lock‑on grips reduce fatigue on all‑day adventures, and the platform pedals provide excellent grip even with muddy shoes.
❓ Frequently Asked Questions
With 250 Nm of torque and the fat tires’ grip, the HKM-745491 can tackle inclines up to 35° when riding solo. Actual performance varies with rider weight and surface conditions, but it routinely outperforms mid‑drive e‑bikes on technical climbs.
Yes, the 30Ah lithium pack unlocks from the downtube using the included key. Charge it on or off the bike with the supplied 110‑240V smart charger. A full charge takes 6–8 hours from empty.
Absolutely. The IPX65 rating certifies protection against water jets from any direction. Riding in heavy rain or washing with a low‑pressure hose is safe — just avoid submerging the battery or display.
Regular checks include tire pressure, brake pad wear, chain lubrication, and bolt torques. The brushless motor is maintenance‑free. The hydraulic brakes require occasional bleeding, and the battery should be stored at 50–80% charge if unused for months.
Top speed is electronically limited to 43.5 mph (70 km/h). Regulations for electric bikes vary by region — this model is designed for off‑road and private land use. Always check local laws before riding on public roads.
🛡️ Purchase with Confidence
Free Shipping
On all orders, no minimum. Delivered to your door with care.
180-Day Protection
Extended purchase protection covers manufacturing defects beyond standard periods.
30-Day Money‑Back
Not satisfied? Return within 30 days for a full refund, no questions asked.
24-Month Warranty
Comprehensive coverage on frame, motor, and battery. Ride worry‑free.
* Specifications and features are subject to minor refinements. Always refer to the latest user manual for operational guidelines.
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