HKM-745491
Ultimate Off‑Road Electric Mountain Bike — Power Meets Precision
6,000W
Brushless Motor
250 Nm
Torque · 184 lb‑ft
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 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.
Superior Traction & Stability
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.
Braking & Safety
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.
Ergonomic & User‑Friendly
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
How steep of a hill can this bike climb?
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.
Is the battery removable? How do I charge it?
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.
Can I ride in the rain or wash the bike with a hose?
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.
What maintenance does the bike require?
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.
How fast does it go? Is it street‑legal?
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.
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.
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