HappyRun | G300 Pro Electric Dirt Bike 6500W Peak Motor, 50 MPH Top Speed

HappyRun Tank G300 Pro 6500W Mid-Drive Electric Dirt Bike - 72V 30Ah Full Suspension Off-Road E-Bike

The G300 Pro is the flagship of HappyRun's mid-drive lineup. A 3000W continuous motor with 6500W peak output runs on a 72V platform - the highest voltage in the series - delivering more sustained power under load and less voltage sag on long climbs than the 60V systems in the F18 and G300 SE Ultra. A five-class speed system lets you match output to the situation: Class 1 and 2 hold speeds to 13 and 25 mph for street-legal riding in most jurisdictions, while Class 5 unlocks the full 50 mph for off-road use. Inverted front forks - the same architecture used on performance motorcycles - reduce unsprung mass and increase stiffness over conventional forks, resulting in sharper steering response and better big-hit absorption. A vertical rear shock absorber completes the full suspension system, and hydraulic disc brakes with oversized rotors handle deceleration from any speed.

The 72V 30Ah battery (2160 Wh) delivers up to 70 miles per charge, and fast-charging capability brings it to 80% in 2.5 hours - enough to top off between sessions without losing the day. A carbon steel forged frame provides the structural foundation for the 350 lb max load capacity, and staggered moto-format tires run a 19-inch front wheel (70/100-19) and 17-inch rear (70/100-17), the largest wheel combination in the mid-drive lineup for superior obstacle clearance and high-speed stability. The lighting system is built for dual-use riding: a 2000-lumen headlight provides genuine road-grade illumination, and an integrated taillight with dedicated amber turn signals gives you street-legal signaling capability that no other model in the lineup offers. Seat height sits at 31 inches, fitting riders from 5'1" to 6'5", and a full-color LCD display keeps speed, battery, class selection, and trip data readable in all conditions.

Features

• 3000W Continuous / 6500W Peak Mid-Drive Motor (72V) - The most powerful mid-drive in the HappyRun lineup. The 72V platform provides higher sustained output and less voltage sag than 60V systems, maintaining consistent acceleration and climbing power deeper into the battery's discharge cycle.
• 5-Class Speed System (13 / 25 / 50 mph) - Five electronically governed speed classes let you ride within street-legal limits (Class 1: 13 mph, Class 2: 25 mph) or unlock full off-road performance (Class 5: 50 mph). Switch between classes based on where you are riding and local regulations.
• 72V 30Ah Battery with Fast Charging (2160 Wh) - The highest-capacity battery in the mid-drive series delivers up to 70 miles per charge. Fast-charging reaches 80% in approximately 2.5 hours, with a full charge in 5 to 6 hours, minimizing downtime between rides.
• Inverted Front Forks (Motorcycle-Grade) - Inverted suspension places the heavier stanchion tubes at the bottom, reducing unsprung mass and increasing fork stiffness. The result is more precise steering, better big-hit absorption, and reduced flex under hard braking compared to conventional right-side-up forks.
• Vertical Rear Shock Absorber - Heavy-duty rear shock provides progressive damping over rough terrain, complementing the inverted front forks for balanced full-suspension performance across the entire chassis.
• Hydraulic Disc Brakes with Oversized Rotors - Larger-diameter rotors increase braking surface area and heat dissipation, delivering fade-resistant stopping power matched to the G300 Pro's 50 mph top speed and 350 lb max load.
• Staggered Off-Road Tires (70/100-19 Front, 70/100-17 Rear) - The largest wheel combination in the mid-drive lineup. The 19-inch front wheel rolls over obstacles and ruts that smaller wheels drop into, while the 17-inch rear provides traction and stability. High-traction tread handles loose dirt, mud, gravel, and uneven terrain.
• 2000-Lumen Headlight - The brightest headlight in the HappyRun lineup. 2000 lumens provides genuine road-grade and trail-grade illumination, not just "be seen" visibility, for confident riding in full darkness.
• Integrated Taillight with Amber Turn Signals - Red LED taillight paired with dedicated amber turn signal indicators. Provides street-legal signaling capability for mixed road and trail use, improving visibility and predictability to other road users.
• Full-Color LCD Display - High-brightness, sunlight-readable color screen shows speed, battery level, active speed class, trip distance, and system diagnostics. Ergonomically mounted for quick mid-ride reads.
• Carbon Steel Forged Frame (350 lb Max Load) - Forged carbon steel construction provides the rigidity and durability to support 350 lbs of rider and gear across sustained off-road use, high-speed impacts, and daily commuting wear.

Specifications

• Motor: 3000W continuous / 6500W peak mid-drive
• Battery: 72V 30Ah (2160 Wh) lithium-ion, fast-charge capable
• Charge Time: Approximately 2.5 hours to 80%, 5-6 hours full
• Top Speed: Up to 50 mph (Class 5, off-road)
• Speed Classes: Class 1 (13 mph), Class 2 (25 mph), Class 3 (unlisted), Class 4 (unlisted), Class 5 (50 mph)
• Range: Up to 70 miles
• Max Load Capacity: 350 lbs
• Frame: Carbon steel forged
• Brakes: Hydraulic disc with oversized rotors (front and rear)
• Front Tire: 70/100-19 off-road
• Rear Tire: 70/100-17 off-road
• Suspension: Full - inverted hydraulic front forks, vertical rear shock absorber
• Headlight: 2000 lumens
• Taillight: Integrated LED with amber turn signals
• Display: Full-color LCD, sunlight-readable
• Total Length: 68.5 in (1740 mm)
• Handlebar Height: 44 in (1118 mm)
• Wheelbase: 47.2 in (1199 mm)
• Seat Height: 31 in (787 mm)
• Recommended Rider Height: 5'1" - 6'5" (154 - 196 cm)
• Frame Size: One size fits most