SKU: 52389274448

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

$1889.99 $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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4.1 ★★★★★
Based on 16 reviews
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Product Reviews
F
Verified Purchase
fenglinyang
Chelsea, US
★★★★★ 5
Great chair for everyday use
I’m really happy with this ergonomic chair. It was easy to put together and feels very sturdy once assembled. The mesh back is breathable and keeps my back cool even after sitting for hours. The seat cushion is comfortable and supportive, and the armrests are positioned well for working at a desk. I also like how smoothly the wheels roll and how easy it is to adjust the height. For the price, the quality is honestly better than I expected. I’ve been using it every day for work and it makes long sitting sessions much more comfortable. Definitely a great value and I would recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
A
Verified Purchase
Amazon Reviews
Bozeman, US
★★★★★ 5
Excellent quality, comfortable for 8+ hour days
Color: Grey, Color: Grey
Since the reviews here were so very helpful to me, I decided to leave my own after using this chair a couple days. To summarize: Overall, I am thrilled with this chair and would recommend! I work remote, in a small apartment and this works well for both space saving and silence when rolling over hardwood floors all day. For more details, read on! It came packaged very nicely, so everything was well protected during shipping. There are no written instructions and to be honest, I didn't even look for them. If you've put one together before, this is pretty standard. The "leather" (not genuine, but feels like it) is thick and seems it will be sturdy for a long time. The padding is exceptional and that's the main reason I needed a new chair, as mine (a 'basic' brand one, IYKYK) only lasted one year before it felt like sitting on a hard plastic seat. The height is adjustable to go up higher than most, so for once I didn't have to raise it all the way to feel comfy. The surprisingly great thing about it is the arms that flip up, so I can push it all the way under my desk. I live in a small apartment, so every bit of space saved is a bonus! Speaking of apartments, the wheels on this are whisper quiet and I'm more than certain the neighbor below me is thrilled to not hear my clunky wheels from the other chair anymore. I was hesitant to pay too much for an office chair, but given the price and the quality, I feel it was an excellent purchase. A few items to note, if you have never put one together before: hand tighten the screws first! Don't put them on full force, until the pieces have been mostly assembled. This will help it not come out lopsided and the holes will be a little easier to line up. Watch the video, it will make the process a little easier (unlike what I did - put the arms on correctly, thought that looked wrong, then put them on backwards and lost my mind LOL). The video will also show how to recline the chair, if you like that (I do). It has a recline that's smooth as butter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
J
Verified Purchase
Julia
Massapequa, US
★★★★★ 5
Very comfortable and safe chair
This executive desk chair is very convenient , for its 90° flip-up armrests can be easily pushed under the desk, perfect for home office. The rubber wheels roll smoothly and quietly on my carpet. It supports up to 275 pounds so it is safe to me . The height-adjustable back with 360° swivel makes me move freely . The curved, padded backrest provides relieve back pressure , also it is very easy to set up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
L
Verified Purchase
Lory Johnson
Belleville, US
★★★★★ 4
Recommend it for all.
Color: Grey, Color: Grey
Very nice chair. One warning…it went together very easily except for the last screw!!! I finally gave up. A neighbor came over and gave up. My daughter came. Over and after much groaning and moaning got that last screw in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
D
Verified Purchase
Daniel Ivan
Cuba, US
★★★★★ 5
Great for home office
Color: Grey, Color: Grey
This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty. Very easy to put together and it feels very firm and stable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026

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