HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults
Top Speed
Top Speed
44 MPH
PEAK MOTOR
Peak Motor
6000W
Max Range
Max Range
65 Miles
Peak Torque
Peak Torque
240 N.m
Battery
Battery
60V 31Ah
Brakes
Brakes
Hydraulic

HappyRun G300 SE Ultra Electric Dirt Bike with Mid-Drive for Teens & Adults

  • Peak Motor: 6000W
  • Battery: 60V 31Ah
  • Top Speed: 44 MPH
  • Max Range: 65 Miles
  • Peak Torque: 240 N.m
  • Max Load: 330 Lbs
  • Wheel Setup: Front 17" / Rear 14"
  • Suitable Height: 4'1" - 6'1"
$2,499.00 $1,189.00
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Delivery Time: Most orders arrive in 3-5 business days. Some may take 7+ days due to weather, remote areas, or courier delays.

Free Shipping to US except Alaska, Hawaii, Puerto Rico & other US territories.

14-Day Trial - Return it to us if you're not 100% satisfied with your purchase. Restocking fee applies.

2-Year Limited Warranty - our industry-leading 2-year warranty on our frames, plus official coverage for all key motors and electrical components. See details here.

Explore More Features
Model Tank G300 SE Ultra

Speed & Range
Top Speed 44 MPH
Riding Range 56-65 Miles
Charging Time 6-8h

Electronics
Battery 60V 31AH Lithium Battery
Motor 6000W Peak Mid-Drive Motor
Torque 240 N.m Peak Torque
Controller 60V 35AH
Display Digital Display
Throttle Full-Twist Throttle
Headlight LED Light (700 Lumens)
Taillight Integrated Taillight
Waterproof Grade IPX5

Frameset
Suspensions Full Suspension
Front Fork Hydraulic Fork
Rear Fork Spring Shock Absorber
Tires Off-road Tires (Front 17", Rear 14")
Working Temp. 14°F~104°F (-10°C~40°C)

Brake
Brakes Hydraulic Brakes
Brake Rotor 190mm × 3.4mm

Bike Dimension
Bike Weight 138 lbs (Excluding Battery) / 140 lbs (Battery Weight: 21.8 lbs)
Package Weight 143 LBS
Product Dimensions 1760*725*1130mm
Package Dimensions 1450*270*800mm
Total Payload 350 LBS
Recommended Height 4'1" - 6'1"
Seat Height 31.9"

Use this specification table to review the HappyRun G300 SE Ultra's power system, chassis, braking components, dimensions, and rider fit. To compare it with other trail-focused configurations, visit the HappyRun range of mid-drive electric dirt bikes and choose a model suited to your riding plans.

Delivery: 3–5 business days within the continental U.S. Remote areas or carrier delays may require 7+ business days.

5'10"Height

Slide the scale for your bike inseam measurement

G300SE Ultra

You will be able to pedal and stand over the frame comfortably.

G300SE Ultra

You may experience discomfort on extended riding periods.

happyrun - electric dirt bike

Geometry

G300SE Ultra Ebike is available in 1 sizes to suit most Teens and Adults

One Size Fits Most
A - Total Length 69.3" (1760 mm)
B - Handlebar Height 44.5" (1130 mm)
C - Wheelbase 47.2" (1199 mm)
D - Seat Height 31.9" (810 mm)
Off-Road Tires Off-road Tires (Front 17", Rear 14")
Rider Height (Range) 3'11“ -6'1” (1194-1854 mm)
HappyRun G300 Pro electric dirt bike geometry

FAQs

Can the G300se Ultra really hit 44+ MPH?
Yes! Thanks to our high-performance 60V 6000W mid-drive motor and precision-tuned controller, the G300se Ultra can exceed 44 MPH under optimal conditions. Because it delivers Instant Torque, we recommend that new riders start in a lower speed mode to get a feel for the power.
What is a Mid-Drive motor, and why is it better than a hub motor?
Unlike hub motors found in cheaper models, a mid-drive motor is positioned in the center of the frame. This creates perfect weight distribution and allows the motor to leverage the bike's gear ratio, multiplying the torque to a massive 240 N.m. It provides superior balance for Off-road maneuvers and much better climbing ability on steep trails.
What is the real-world range on a single charge?
The G300se Ultra is designed for Long Range exploration. You can expect 56 to 65 miles of range depending on rider weight, terrain, and speed settings. It’s built to keep you shredding all day without needing to head back to the charger.
How long does it take to charge?
Using our included smart charger, a full charge from 0% to 100% takes approximately 6-8 hours. Many riders find it easiest to charge overnight so the bike is ready for a full day of riding the next morning.
Is the battery safe and durable for off-road use?
Absolutely. Our 60V 31Ah lithium battery is housed in a reinforced casing within the frame to protect it from impacts. It also features an advanced Battery Management System (BMS) that prevents overcharging, overheating, and short circuits, ensuring maximum safety during intense E-moto sessions.
Who can ride the G300se Ultra?
This bike is built for versatility. With a 31.9"" seat height, it comfortably fits riders ranging from 4'1"" to 6'1"". The high-strength frame supports a payload of up to 350 lbs, making it a rugged choice for both teens and adults.
Is it waterproof? Can I ride in the rain or mud?
The G300se Ultra has an IPX5 waterproof rating. This means it is resistant to splashes, rain, and mud. You can confidently ride through puddles and wet trails, though we do not recommend submerging the bike in deep water or using high-pressure power washers directly on electronic components.
How effective are the brakes at high speeds?
Safety is our priority. We’ve equipped this bike with professional hydraulic brakes and oversized 190mm rotors. This setup provides significantly more stopping power and better heat dissipation than mechanical brakes, allowing you to ""stop on a dime"" even from top speeds.
Is the G300se Ultra street legal?
The G300se Ultra is designed as an Electric Dirt Bike for off-road use on private property, designated trails, and OHV (Off-Highway Vehicle) areas. Laws regarding electric motorcycles on public streets vary by state and city; we recommend checking your local DMV regulations.
What kind of maintenance does it require?
One of the best parts about an electric E-moto is the low maintenance! There are no oil changes, spark plugs, or carburetors to worry about. You only need to perform basic checks: keep the chain lubricated, monitor tire pressure, and check brake pad wear periodically.
How is the bike delivered, and is assembly difficult?
We ship directly from our US-based warehouse. The bike arrives approximately 85% pre-assembled. You will only need to install the front wheel, handlebars, and footpegs. We provide all necessary tools and a step-by-step video guide—most riders are ready to go in under 45 minutes!
What if I need help or parts?
We offer dedicated US-based customer support. Whether you need technical advice, replacement parts, or warranty service, our team of experts is just an email or phone call away.

HappyRun G300 SE Ultra

FEATURES
G300se Ultra - The Mini Beast That Bites. Don't call it a toy. With a professional mid-drive motor and 44+ MPH of raw velocity, this is the ultimate electric dirt bike built for those who demand more. Compact frame. Massive performance. Zero compromises.

The G300 SE Ultra combines a 60V 31Ah battery, full suspension, hydraulic braking, and 17/14-inch off-road tires for riders comparing high-powered electric dirt bikes in a compact format.

6000W Peak Mid-Drive
Unleash explosive acceleration with a massive 6000W peak mid-drive motor churning out a relentless 240 N.m of torque. Engineered for instant throttle response, the G300 SE Ultra tears through deep mud and conquers the steepest climbs with pure, unadulterated grunt.
60V 31Ah Lithium Battery
Fuel your long-haul missions with a high-capacity 60V 31Ah lithium battery, delivering an impressive 65-mile range. Leave range anxiety in the dust and push deeper into the backcountry—you’ve got the juice to get there and back.
Full Suspension Mastery
A hydraulic front fork and rear spring shock absorber soak up the big hits, keeping your tires glued to the dirt.
Heavy-Duty Hydraulic Braking
Command every descent with high-performance hydraulic brakes and massive 190mm x 3.4mm rotors. Designed for instant bite and maximum heat resistance, this system significantly shortens braking distances for total confidence.
All-Weather Reliability
"Built to withstand the elements, the G300 SE Ultra features an IPX5 water-resistant rating. Whether you’re splashing through shallow streams or caught in a sudden downpour, this durable design ensures your core components stay protected, giving you the freedom to ride in any weather.
17"/14" Staggered Off-Road Tires
Built for the grit, our 17" front and 14" rear tires bite into the toughest terrain. This staggered setup offers superior agility and rock-solid lateral grip for carving through tight technical sections with total precision.
Digital Dash & Full-Twist Throttle
Stay locked into your ride data with a vibrant, sun-readable digital display. Paired with a responsive full-twist throttle, the G300 SE Ultra offers intuitive, motorcycle-style control for smooth, high-speed launches.

Parameter Comparison

Side-by-side specs. No fluff. Just the power to choose your perfect ride.

Features
G300 SE Ultra

G300 SE Ultra

G300 SE

G300 SE

G300 Pro

G300 Pro

Price
$1,189
$799
$1,799
Peak Motor
6000W
4500W
6500W
Top Speed
44 MPH
36 MPH
50 MPH
Battery
60V 31Ah (1860Wh)
48V 26Ah (1248Wh)
72V 30Ah (2160Wh)
Range
65 Miles
45 Miles
70 Miles
Tire
F17" / R14"
F14" / R12"
F19" / R17"
Suspension
Full Suspension
Full Suspension
Full Suspension
Max Load
350 Lbs
330 Lbs
350 Lbs
Rider Height
4'1" - 6'1"
3'11" - 6'1"
5'1" - 6'5"
Seat Height
31.9"
29"
31"

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