HKM-394707 High-Performance 72V 8000W Electric Dirt Bike with 35Ah Lithium Battery and Hydraulic Disc Brakes
SKU: 52389274448

HKM-394707 High-Performance 72V 8000W Electric Dirt Bike with 35Ah Lithium Battery and Hydraulic Disc Brakes

Sale price$1889.99 Regular price$2099.99
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Description

HKM-394707 High-Performance 72V 8000W Electric Dirt Bike with 35Ah Lithium Battery and Hydraulic Disc BrakesHKM 394707 High Performance 72V 8000W Electric Dirt Bike Engineered for rugged terrain and pure adrenaline the HKM 394707 combines a formidable 8000W brushless motor, precision full hydraulic suspension, and a long range 35Ah lithium battery to redefine off road freedom. 8000W Brushless Motor Massive 330 Nm (243. 4 lbft) of torque delivers instant acceleration across sand, mud, and rocky inclines. 35Ah Detachable Lithium Battery Ride 6281 miles

HKM-394707 High-Performance 72V 8000W Electric Dirt Bike

Engineered for rugged terrain and pure adrenaline — the HKM-394707 combines a formidable 8000W brushless motor, precision full-hydraulic suspension, and a long-range 35Ah lithium battery to redefine off-road freedom.

8000W Brushless Motor Massive 330 Nm (243.4 lb‑ft) of torque delivers instant acceleration across sand, mud, and rocky inclines.
35Ah Detachable Lithium Battery Ride 62–81 miles (100–130 km) on a single charge. Quick 3–5 hour recharge keeps adventures rolling.
Adjustable Full Hydraulic Suspension Soak up bumps and drops with tunable damping — confident control on the gnarliest trails.

Unleash True Off‑Road Power

The heart of the HKM-394707 is a high-efficiency 8000‑watt brushless motor, tuned for immediate throttle response. With 330 newton‑meters (243.4 pound‑feet) of peak torque on tap, the bike climbs steep grades and powers through loose surfaces without hesitation. The electronic controller optimizes energy flow, minimizing heat buildup even during sustained high‑load riding.

Max Speed Over 31 mph (50+ km/h) — thrilling trail velocity
0–31 mph (0–50 km/h) Rapid acceleration — reaches top speed in seconds
Torque 330 Nm (243.4 lb‑ft) at the rear wheel

Endurance That Matches Your Ambition

The 72‑volt architecture paired with a 35‑Ah lithium‑ion pack offers a real‑world range of 62–81 miles (100–130 km), depending on terrain and riding style. The detachable design allows you to charge the battery on or off the bike — ideal for apartment dwellers or base‑camp setups. Intelligent Battery Management System (BMS) safeguards against overcharge, overheating, and deep discharge, extending pack life cycle by years.

35 Ah Capacity 72 V nominal, 2520 Wh total energy — ample for day‑long trail sessions.
3–5 Hour Fast Charge From empty to full while you rest. Standard 110 V / 220 V charger included.
62–81 Miles Range 100–130 km on mixed terrain. Eco mode extends distance further.

Lightweight Aluminum Alloy Chassis

The frame is forged from aerospace‑grade 6061 aluminum alloy, striking the perfect balance between rigidity and low weight. This reduces overall mass for better handling and longer battery life, while maintaining exceptional torsional strength. The welded joints are double‑pass smoothed for stress distribution, and the swingarm geometry is optimized for off‑road tracking stability.

Frame Material 6061 Aluminum Alloy — lightweight, corrosion‑resistant
Max Load 331 lbs (150 kg) — accommodates rider plus gear

Race‑Ready Suspension & Braking

Both front and rear feature fully adjustable hydraulic dampers with piggyback reservoirs, allowing fine‑tuning of compression and rebound to match rider weight and terrain. The 7.5‑inch (190 mm) travel soaks up roots, rocks, and jumps. Hydraulic disc brakes with 210 mm rotors front and rear deliver powerful, fade‑resistant stopping even in wet conditions.

Fully Adjustable Hydraulic Fork Inverted design reduces unsprung weight. Rebound & compression clickers.
Hydraulic Disc Brakes Dual 210 mm rotors, sintered pads — consistent bite and modulation.

Aggressive Traction, Any Terrain

Fitted with heavy‑duty knobby tires sized F 70/100‑19 and R 80/100‑19, the HKM‑394707 finds grip on hardpack, loam, gravel, and mud. The 19‑inch rims provide ample sidewall flex for bump absorption while resisting pinch flats. Multi‑edge tread blocks are self‑cleaning in sticky soil.

Front Tire 70/100‑19 (approx. 2.75‑19) — directional knobby
Rear Tire 80/100‑19 (approx. 3.00‑19) — wide footprint for drive

Technical Specifications

Motor 8000W Brushless, Peak 330 Nm (243.4 lb‑ft)
Battery 72V 35Ah Lithium (2520 Wh), Detachable
Charge Time 3–5 Hours (110V–220V AC)
Range 62–81 miles (100–130 km)
Max Speed 31+ mph (50+ km/h)
Load Capacity 331 lbs (150 kg)
Suspension Travel 7.5 in (190 mm) Front & Rear
Brakes Hydraulic Disc, 210 mm Rotors

Frequently Asked Questions

What is the actual range in off-road conditions?
Range varies with terrain, rider weight, and speed. On mixed trails with moderate hills, expect 68–75 miles (110–120 km). In aggressive riding or deep sand, range may be closer to 62 miles (100 km). Eco mode can extend it past 81 miles (130 km) on flat hardpack.
How do I charge the battery, and can I charge it off the bike?
The 35Ah pack is detachable: unlock and slide it out. Connect the included smart charger to any standard household outlet (110V or 220V). Full charge in 3–5 hours. The BMS prevents overcharging and balances cells automatically.
Is the suspension suitable for heavier riders?
Yes. The fully adjustable hydraulic fork and shock allow spring preload, compression, and rebound tuning. Riders up to 331 lbs (150 kg) can set sag correctly. The linkage rear suspension progression handles big hits without bottoming out.
What maintenance does the electric drivetrain require?
The brushless motor is virtually maintenance‑free. Keep the chain or belt (depending on model) lubricated, check brake pads periodically, and inspect tire pressure before rides. No oil changes, air filters, or fuel stabilizers needed.
Is the bike waterproof? Can I ride in rain or puddles?
The electrical components are sealed to IP54 standards, meaning resistance to splashing water and dust ingress. Riding through rain or shallow puddles is fine, but submerging the motor or battery is not recommended. Always dry the bike after wet rides.

Purchase with Confidence

Free Shipping on All Orders Complimentary standard shipping to the contiguous United States. Fast, secure delivery right to your door.
180-Day Purchase Protection If a manufacturing defect arises within 180 days, we’ll repair or replace the product at no extra cost.
30-Day Money‑Back Guarantee Not satisfied? Return the bike in original condition within 30 days for a full refund — no questions asked.
24-Month Warranty Service Comprehensive coverage on frame, motor, battery, and electronics. Dedicated support team ready to assist.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 52389274448

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Amazon Customer
Lexington, US
★★★★★ 5
Be safe and always calculate the gauge wire are you need, don’t cut corners.
Size: 4 Gauge 10FT
Good quality solid copper 4 Gauge wires in red and black. Avoid aluminum wiring that has copper plating so looks like solid copper but can be dangerous if used in heavy load applications. Copper is expensive but required if amperage is high.
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Reviewed in the United States on February 8, 2026
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Jenaro Garcia
Lexington, US
★★★★★ 5
Good
Size: 1/0 Gauge 10FT
Good item
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Reviewed in the United States on April 14, 2026
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Hunter
Battle Creek, US
★★★★★ 5
Works no issues
Size: 8 Gauge 10FT
Works no issues
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Reviewed in the United States on May 7, 2026
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TJ Helser
Bozeman, US
★★★★★ 4
Durable insulation and pure copper not that cca bs
Size: 1/0 Gauge 5FT
Good quality. Solid copper, not that cca bs. Stiff and durable insulation. Used for big 3 car audio grounds on high output alternator. Great results. Will mention that it’s not as thick as some other brands but not by much. Terminals still crimped tightly with 1/0 gauge
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Reviewed in the United States on January 11, 2026
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chris
Charlottesville, US
★★★★★ 5
Quality wire and true specs
Size: 8 Gauge 10FT
Good quality car audio power wire.
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Reviewed in the United States on March 8, 2026

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