HappyRun G300 SE Ultra – 6000W Mid-Drive Electric Dirt Bike (44+ MPH, 65-Mile Range)

The G300 SE Ultra is compact in size and anything but compact in capability. A professional-grade mid-drive motor puts out 6000W of peak power and 240 Nm of torque, pushing the bike past 44 MPH with the kind of acceleration that makes it feel bigger than it is. Built for teens and adults who want a serious off-road machine without the full-size footprint, it pairs pro-grade suspension and heavy-duty brakes with a 60V 31Ah battery good for up to 65 miles — enough for a real day on the trail, not just a quick loop around the block.

Compact in size but massive in capability, it's the kind of bike that surprises people the first time they twist the throttle.

• 6000W peak mid-drive motor, 240 N.m torque — rapid acceleration, steep hill climbing, and superior trail capability
• 44+ MPH top speed — real speed for adventure seekers and experienced riders
• 60V 31Ah lithium battery, up to 65 miles range — built for trail riding, off-road exploration, and backcountry adventures without constant recharging
• Pro-grade full suspension — hydraulic front fork and rear spring shock absorber smooth out rough terrain
• Heavy-duty hydraulic disc brakes (190mm x 3.4mm rotors) — powerful stopping performance with improved heat resistance
• 17" front and 14" rear off-road tires — staggered setup for superior traction, stability, and handling across dirt, gravel, mud, and rugged terrain
• IPX5 water-resistant construction — built to withstand splashes, wet conditions, and unexpected weather
• Motorcycle-style full-twist throttle + digital LCD display — smooth, intuitive acceleration control with real-time ride data, readable even in bright sunlight
• 31.9" seat height, riders 4'1"–6'1" — ergonomic design built for teens and adults; 350 lb payload capacity; ships free to the contiguous US

Specifications

Warranty

The G300 SE Ultra is backed by HappyRun's tiered warranty: 24 months on the frame, 12 months on the front fork, handlebar, motor, controller, charger, and battery, 6 months on drivetrain components and electrical controls, and 3 months on consumables like tires, brakes, and lighting. The battery is warranted to retain at least 75% capacity for up to 300 charge cycles. Coverage applies to manufacturing defects; damage from water ingress, collisions, or self-modification is excluded. Expert support is included with every purchase.

Resources

• Product Brochure

Before You Buy — What You Should Know

US Shipping: Ships free to the contiguous United States. Contact our team for estimated delivery timelines before ordering.

Who It's For: Teens and adults seeking a powerful yet versatile electric dirt bike for off-road adventures on private property or designated trails. With a comfortable 31.9" seat height, the G300 SE Ultra accommodates riders from 4'1" to 6'1", while its durable high-strength frame supports up to 350 lbs. Ideal for trail riding, outdoor recreation, and off-road exploration. Appropriate safety gear is required. Not intended for street or highway use—always check local laws and regulations before riding.

Support: Our team can help with setup, motor configuration, and riding recommendations for new riders. We do the research, you make the decision.

You May Also Like

• HappyRun G300 Pro – 6500W Electric Dirt Bike — the full-size upgrade for adult riders who want maximum power and range
• HappyRun G18 Pro – 4500W Electric Dirt Bike — similar power in a newer model with 75-mile range and 350 lb payload
• HappyRun F18 – 2000W Electric Mini Dirt Bike — the mid-drive alternative with 46 MPH top speed and 60-mile range