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GREATWORK 52V 5000W Peak Dual Motor Electric Bike for Adults, 1300Wh Battery, Up to 45MPH & 100 Miles Range, 26" x 4.0 Fat Tire Electric Dirt Bike with Suspension, Mountain E-Bike for Men Women

  • Based on 12 reviews
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$1,128.99 Why this price?
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Color: M8 Black


Features

  • 5000W Peak Powerful Motor: The Greatwork M8 adult electric bike is equipped with two 2000W(peak 2500W) high-performance motors (180NM torque), enabling easy 40 uphill climbs and all-terrain handling. With a top speed of 45MPH, this peak 5000W e-bike is ideal for off-road, mountain biking, commuting, and long-distance travel. Choose between single or dual motor modes for flexible riding
  • 52V 25AH Removable Battery: This dual-motor e-bike features a 52V 25AH lockable, removable lithium battery. A full 8-9 hour charge delivers up to 100 miles in PAS mode or 60 miles in electric mode, ideal for adventures and commuting. This electric bicycle is UL 2849 certified for safety. With five assistance levels12/20/28/36/45 mph respectivelyriders can easily select the mode that best suits their needs.
  • 26"x4" Fat Tire & Dual Suspension: Featuring dual front fork shocks for superior absorption, reducing impact and pressure. The 26"x4" fat tires offer exceptional all-terrain grip, ideal for off-road and urban riding, ensuring maximum traction and stability on highways, snow, mountains, beaches, and gravel roads
  • 3.5" LCD Display & Dual Hydraulic Brakes: The 3.5" enlarged LCD smart display shows real-time metrics including speed, mileage, PAS level, and battery status. Dual hydraulic brakes deliver reliable stopping power within 2 seconds, ensuring full control and enhanced safety
  • 7-speed gear system & 6 Riding Modes: The 7-speed gear system of the electric dirt bike adapts to diverse terrains, optimizing comfort and efficiency. 6 modes include Dual Motor Electric, Single Motor Electric, Pedal Assist, Normal Bike, Cruise, and Walk modes. Five PAS levels offer tailored riding experiences
  • Features and AccessoriesThis 26" fat tire electric bike is designed with a high-strength frame for enhanced durability. The adult bicycle is equipped with an ultra-bright LED headlight and taillights featuring left and right turn indicators, ensuring visibility and safety during night rides. Additionally, the bike comes with a rear rack, mudguards, and an adjustable seat to accommodate the needs of most riders.
  • Single-Motor and Dual-Motor SwitchingTo activate the dual motor system, please press the button on the left handlebar. You can freely switch between single-motor and dual-motor modes as needed, adapting to different riding scenarios effortlessly.
  • 85% Pre-Assembled for Easy InstallationGREATWORK electric bikes come 85% pre-assembled, so you dont have to waste time on complex installations. Video guides are available on the product page. The instruction manual included in the package also provides detailed installation steps.
  • One-Year WarrantyEnjoy a one-year official warranty (covering core components and non-human quality issues) plus 24/7 responsive customer supportride with total confidence!

Description

Greatwork is a trusted eBike brand offering high-performance electric bikes for all kinds of riders. Our lineup includes fat tire mountain bikes, vintage-style motorbikes, and safe, fun models for kids. Designed for power, comfort, and durability. Greatwork bikes let you explore with confidence - on the road, off the trail, or anywhere in between. Ride Bold, Ride Beyond ! Ship from California or Pennsylvania warehouse. Processing (1–2 business days); Deliveries within the shipping state typically take 2–3 business days, while deliveries to the lower 48 states (excluding the shipping state) usually take 4–7 business days. The bike will arrive mostly assembled. We provided the tools in the box and an assembly video on the detail page. To activate the dual motor system, please press the red button on the left handlebar. This eBike is equipped with a high-capacity 52V 25Ah lithium battery, offering a range of 40–60 miles on throttle mode and 50–100 miles with pedal assist. Press the battery power button to the 丨 position, then hold the middle power button for 3 seconds to turn on the display. PAS-0 is the pedal mode; PAS 1-5 are the power assist modes. Holding the "-" button will activate the boost mode. No, actually. Many big-brand wheel rims have a manufacturing seam—heated, bent, then joined into a circle. It's a normal craft mark, not damage. Yes, nomal. This bike's 3A fast charging sends more current quickly, causing warmth. Safe if under 130°F. 2 main reasons: motor overheating (controller cuts/reduces power to prevent damage) and controller overheating protection (limits power or shuts down). M8 Black R8 Black K7 Blue K7 PRO Black M7 Black M7 PRO Green M8 PRO Beige

Bike Type: Mountain Bike


Age Range (Description): Adult


Brand: GREATWORK


Number of Speeds: 7


Color: M8 Black


Wheel Size: 26 Inches


Suspension Type: Dual


Size: 26"


Brake Style: Disc


Model Name: M8


Bike Type: Mountain Bike


Number Of Speeds: 7


Suspension Type: Dual


Brake Style: Disc


Power Source: Electric motor


Lithium Battery Energy Content: 1300 Watt Hours


Intended Riding Terrain: Mountain Terrain, Unpaved Trails


Bicycle Drivetrain Type: chain drive


Electric Assist Type: pedal assist


Battery Life: 8 Hours


Color: M8 Black


Warranty Type: Limited


Is Assembly Required: Yes


Age Range Description: Adult


Brand Name: GREATWORK


Model Number: M8


Model Name: M8


Manufacturer: Guangdong Panlong Science and Technology Co., Ltd.


Unit Count: 1.0 Count


Wheel Size: 26 Inches


Size: 26"


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Good bike and customer service
The bike is great it came with small damage on one of the plastic peices and they replaced it fast.
Reviewed in the United States on May 6, 2026 by Juston P Stout

  • Don't waste your money
This bike was great at first. 32 days after I got it it would not start. Amazon won't do anything about and Greatwork say they are sending parts but they have not done anything for a week now. This of been a nice bike but it clearly won't last long. The battery dies half of what they claim. The are better bikes on Amazon for a lot less money and you will get customer support that actually cares about the reputation of their company ... show more
Reviewed in the United States on June 1, 2026 by Jeffrey Hunt

  • Read instructions carefully as relates front wheel,
Great bike just as advertised, assembly instructions somewhat vague in some cases, but ok
Reviewed in the United States on February 21, 2026 by Tom Larimer

  • Too tall Too tall
Bike is too tall. They told me since I’m 5 foot 5 it would fit me fine. Idk how they are going to fix this. It’s going to be unsafe for me.
Reviewed in the United States on June 12, 2026 Reviewed in the United States on June 12, 2026 by DP

  • Battery Burned
Battery got burned while charging.
Reviewed in the United States on June 2, 2026 by jerilynn

  • Motor Overheats Quickly
Motor gets too hot in short rides.
Reviewed in the United States on June 2, 2026 by melinda pratt

  • Motor Jerks
Bike jerks forward when motor engages.
Reviewed in the United States on June 2, 2026 by JEFF WISEMAN

  • Hard Braking
Hard to stop quickly, dangerous in traffic.
Reviewed in the United States on June 2, 2026 by mounir al assad

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