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HAPPYRUN

HAPPYRUN G300 Pro Electric Dirt Bike for Adults, 72V 30Ah Battery, 6500W Motor, 50 MPH Speed, 70 Mile Range, 350 Lbs Load Capacity, Hydraulic Brakes

  • Based on 121 reviews
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Availability: In Stock.
Fulfilled by Happyrun Sport-WB
Arrives Aug 9 – Aug 13
Order within 15 hours and 8 minutes
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Color: Camo


Features

  • HOW FAST IS IT? CAN IT CLIMB STEEP HILLS? 6500W peak brushless motor delivers 50 MPH top speed and class-leading acceleration. Hydraulic disc brakes stop you in 3 seconds from full speed. Whether its desert whoops, mountain trails, or muddy slopes this electric dirt bike outclimbs gas-powered 250cc bikes. Built for adult riders who demand extreme off-road performance.
  • HOW FAR CAN IT GO ON ONE CHARGE? 2160Wh removable battery (72V 30Ah) delivers 70+ miles in mixed riding mode (throttle + pedal assist). What does that mean? From downtown LA to San Diego with range to spare. Swappable design carry a spare and double your adventure. 2-hour fast charging to 80%. No range anxiety, no range jail.
  • WILL IT HANDLE MY WEIGHT AND ROUGH TERRAIN? 350 lbs load capacity with 43mm inverted forks + dual rear shocks. Absorbs impacts from rocks, whoops, and drop-offs. Dual-piston hydraulic brakes bite hard even in mud or rain. Say goodbye to arm pump and back pain whether youre 180 lbs or 350 lbs+, ride all day in comfort.
  • 4 STYLES TO MATCH YOUR PERSONALITY Will it look good on me? Pick your perfect match: Matte Black (stealth), Blaze Orange (high-visibility for safety), Ocean Blue (stand out on trails), or Camouflage (blend into the wild). Each color features durable, UV-resistant paint that wont fade after hours under the sun. Ride in style express yourself on and off the trail.
  • HOW HARD IS IT TO ASSEMBLE? Im not a mechanic. We heard you. G300 Pro comes 85% pre-assembled. You only need to install the front wheel and handlebar. From box to first ride in 30 minutes. Step-by-step video guide included. No special tools required. If you get stuck, our online support team will reply within 1 business day with clear instructions.
  • WHAT IF SOMETHING BREAKS OR I NEED HELP? We stand behind every G300 Pro. 30-day no-hassle returns, 365-day warranty on motor & battery. Need help adjusting chain tension or tire pressure? Check our detailed online manual and video library. For unresolved issues, email our support team (response within 1-2 business days). No hidden fees. Customer support for life thats our promise.

Description

Experience the thrill of off-road riding with this powerful electric dirt bike designed for adults. Built for performance, this robust machine delivers an impressive top speed of 50 MPH powered by a muscular 6500W motor. The high- capacity 72V 30Ah battery system provides an extended range of up to 70 miles on a single charge, perfect for lengthy adventures. With a substantial load capacity of 350 pounds, this dirt bike accommodates riders of various sizes while maintaining optimal performance. The inclusion of hydraulic brakes ensures reliable stopping power and enhanced control during your rides. Whether you're tackling challenging trails or enjoying casual off-road excursions, this electric dirt bike combines power, range, and safety features for an exhilarating riding experience. The bike's robust construction and powerful specifications make it an ideal choice for both recreational riders and outdoor enthusiasts seeking a capable electric vehicle for their adventures.

Bike Type: Electric Bike


Age Range (Description): Adult


Brand: HAPPYRUN


Number of Speeds: 5


Color: Camo


Frame Material: Stainless Steel


Suspension Type: Dual


Special Feature: Dual Suspension


Included Components: Riding Bag


Size: 1


Bike Type: Electric Bike


Number Of Speeds: 5


Suspension Type: Dual


Additional Features: Dual Suspension


Brake Style: Disc


Power Source: Electric motor


Lithium Battery Energy Content: 2160 kwh


Intended Riding Terrain: Mountain Terrain


Derailleur Configuration: Rear


Bicycle Drivetrain Type: Derailleur


Electric Assist Type: pedal assist, throttle assist


Color: Camo


Frame Material Type: Stainless Steel


Age Range Description: Adult


Brand Name: HAPPYRUN


Included Components: Riding Bag


Model Number: HR-G300 pro


Model Name: G300PRO


Manufacturer: Happyrun


Warranty Description: 1


Size: 1


Maximum Weight Recommendation: 350 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 9 – Aug 13

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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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Amazing bike
Color: black
This is a amazing product. Long range and built well. The battery life is fairly amazing for the price. The power is ok. But very good for the price. The speed is also very good, especially for a hub motor. Assembly is also not to hard. Just the front wheel and shock.
Reviewed in the United States on July 19, 2026 by Demitri B
    • Great Bike!
Color: black
I’ve been really impressed with the Happyrun G300 so far. The bike has plenty of power, rides smoothly, and feels sturdy even on rough roads. The suspension makes a big difference, and the seat is surprisingly comfortable for longer rides. The battery life has been solid, and I like how easy it is to switch between pedal assist and throttle mode. For the price, this e-bike offers great value and has been a fun and reliable daily ride to and from work. I definitely recommend it to anyone looking for a powerful and comfortable e-bike! ... show more
Reviewed in the United States on May 27, 2026 by Grace
    • Very nice bike well worth the money.
Color: Camo
Very nice bike. Easy to put together. Long lasting battery, has a good amount of speed. Well worth the money. This bike is made for adults to enjoy.
Reviewed in the United States on July 22, 2026 by Amazon Customer
    • Not worth the money
Color: black
I ordered this bike the G 300 Pro and it was all good until I The first day, I built it a part that the company put in fill out and I had to replace it with what I had until I contacted the company and then the next day the other one fell out now another part that was manufactured by the people not me. I did not put none of these screws in and they fell out and it made it so my break did not work and it almost caused me to crash so I want to request a refund because I don’t think this is worth the money I paid respectfully maybe I just got something that I had loose screws, but I don’t think this is worth the money I paid. ... show more
Reviewed in the United States on July 10, 2026 by Steph
    • Great bike, great company!
Color: blue
I’ve had my Happyrun G300 Pro for a few months now and I absolutely love it. I mostly ride it on back roads and through the woods, and it’s been an awesome bike with plenty of power and a solid build. What really stood out to me was the customer service, I recently found out I was missing a front axle nut, and they responded quickly, shipped me a replacement right away, and even helped me find the correct pinch bolt I needed. It’s refreshing to see a company that stands behind its products and takes care of its customers. I’ve had a great experience and would definitely recommend the G300 Pro to anyone looking for a fun and reliable e-bike. ... show more
Reviewed in the United States on June 27, 2026 by Jack Ritchie
    • Great e-dirt bike, even better customer service.
Color: black
This electric dirt bike was one of the best purchases I’ve ever made. The bike was fairly simple to assemble and once put together, it rides very smooth and fast. Not only is the bike worth the money, any issue I have had has been quickly addressed by their customer service department to my complete satisfaction. ... show more
Reviewed in the United States on July 17, 2026 by Evan P
    • HappyFun!!
Color: blue
Review Image by Dirt Bike Rider
This bike is so fun they should have named the company HappyFun! I wanted to give a in depth review about the things I was concerned about with this bike. It's a long review but in short, I am impressed! The suspension is solid and the adjustments function properly with rebound rate and stiffness on the front and back, just like a motorcycle. Stiffness and rebound rate can be adjusted with a screwdriver on the forks, while the rear mono shock can be adjusted for rate with a screwdriver, and for stiffness by turning the collar with a special tool which will compress the spring to make it more stiff. It came adjusted 3/4 stiffness which is good for my 145 lbs weight. I have jumped this bike and the suspension has not bottomed out yet. The assembly was easy and took about 1 hour. The range is good. I rode it aggressively on the pavement and on dirt trails and still got 45 miles off a full charge. If you ride it conservatively you could probably get 60 or more miles. The customer service is top notch with HappyRun. I had 2 parts that were damaged during shipment and they responded quickly and sent the replacement parts free of charge. This bike is in a class of it's own. You won't find another bike with this power that you can putt along peddling like a bicycle, and then rip it up with high voltage power on the trails. The direct drive motor is silent which adds to the covert nature while providing a top speed of 48 to 50+ mph depending on rider weight. Overall the quality is good. The welds are solid and it has held up to some very hard trail rides with jumps, rocks, roots and small logs. I have about 100 miles on it so far with most of that on dirt trails and no broken parts so far. I highly recommend buying this bike. ... show more
Reviewed in the United States on April 8, 2026 by Dirt Bike Rider
    • Great bike so far
Color: black
Very fun bike and half the price of a surron. It accelerates very fast and holds its speed decently although once it hits 40mpg it seems to take longer to get to 50mph (I haven’t hit it yet you need a very long stretch of road). It doesn’t have a full handgrip throttle, but the half is decent. My main issue: the battery seems to be a little cheaper (for its output) and tends to flicker the head lights from time to time. Sometimes the power glitches out a bit on startup but it may just be my bike. The connectors aren’t the best quality and can bend inside. ... show more
Reviewed in the United States on December 19, 2025 by Tyler

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