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
UP To 44 MPH
PEAK MOTOR
6000W
Range
Up to 65 Miles
MAX LOAD
350 lbs
Battery
60V 31Ah
Brakes
Hydraulic Brakes

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

Regular price $2,499.00 Sale price$1,599.00
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Technical Specifications
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"
Top Speed
UP To 44 MPH
PEAK MOTOR
6000W
Range
Up to 65 Miles
MAX LOAD
350 lbs
Battery
60V 31Ah
Brakes
Hydraulic Brakes

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.
FEATURES

HappyRun G300 SE Ultra

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.
Dominance from the Center Out
The G300se Ultra features a professional 60V 6000W rated mid-drive motor. By placing the power at the center of the frame, we've achieved perfect weight distribution and a jaw-dropping 240 N.m of Instant Torque and 44 MPH high speed.
Escape the Grid. Explore Further
Why settle for backyard laps when you can conquer the wilderness? Our high-density 60V 31Ah lithium battery is engineered for long range adventures. Go the Distance: Ride 56-65 miles on a single charge—enough for a full day of trail shredding.
Full Suspension Mastery
A hydraulic front fork and rear spring shock absorber soak up the big hits, keeping your tires glued to the dirt.
Precision Stopping
Dual hydraulic brakes with oversized 190mm rotors provide fade-free stopping power when things get fast.
Confidence in Every Corner
Speed is nothing without control. We've outfitted the G300se Ultra with heavy-duty components designed for high-impact Off-road use. All-Weather Ruggedness: With an IPX5 waterproof grade, the G300se handles mud, rain, and river crossings like a pro.
Smart Cockpit
High-visibility digital display and a 700-lumens LED headlight keep you in command, day or night.

DOMINATE THE DIRT

Bolder Performance | Unrivaled Torque | Zero Limits

Spec G300 SE Ultra XXX-Brand XXX-Brand
Motor Power 6000W 5000W 3000W
Peak Torque 240 N.m 100 N.m 120 N.m
Max Speed 44 mph 40 mph 35 mph
Wheelie Ability Ready / Effortless Moderate Difficult
Battery 60V 31Ah 52V 25Ah 48V 20Ah
Suspension Pro-Grade Full Standard Full Front Only
Range 65 Miles 50 Miles 40 Miles
Max Load 350 lbs 265 lbs 265 lbs