•

HappyRun

HappyRun G300 Pro Electric Dirt Bike - Recreational Off-Road Use Only

SKU G300Pro
$3,499.00
$2,059.00
Brand Logo

Authorized HappyRun Dealer

Manufacturer Warranty Included

  • ✓ Fast & Free Shipping
  • ✓ Flexible Financing Available
  • ✓ 30-Day Returns
  • ✓ 24/7 Support

Delivery: 5–10 Business Days
HappyRun G300 Pro Electric Dirt Bike - Recreational Off-Road Use Only

HappyRun

HappyRun G300 Pro Electric Dirt Bike - Recreational Off-Road Use Only

SKU G300Pro

Have Questions?

Talk to an Expert

Our U.S.-based team can help you choose the right gear, configure the perfect setup, or put together a custom quote for your project.

Call (877) 834-4299 Request a Quote

Payment & Security

  • Ach Direct Debit
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Estimated Delivery
Free shipping on every U.S. order

Type your ZIP code to see when your gear arrives at your door.

Please enter a valid 5-digit ZIP code.
Estimated Shipping Time

We offer free shipping on all orders across the contiguous United States. Orders are typically processed within 1–3 business days, and standard delivery takes 5–10 business days. Freight and oversized items take 10–21 business days and may require a scheduled delivery.

What Is Your Return Policy?

We offer a 30-day return window on eligible items from the date of delivery. Products must be unused, in original condition, and returned in their original packaging. To start a return, contact us at support@adventuremotion.com or call (877) 834-4299. Return shipping costs may apply for non-defective items. Damaged or defective items are replaced at no cost to you.

Frequently Asked Questions

Do you offer financing?

Yes — we partner with Affirm so you can split your purchase into easy monthly payments with 0% APR options. Just select Affirm at checkout.

Are you an authorized dealer?

Yes. Adventure Motion is an authorized online dealer for all brands we carry. That means your manufacturer warranty is fully valid and protected.

Can you help me choose the right product?

Absolutely. Call us at (877) 834-4299 or email support@adventuremotion.com — our team specializes in outdoor gear and can match you to the right product.

What if my item arrives damaged?

Contact us within 48 hours of delivery at support@adventuremotion.com. We'll arrange a replacement at zero cost to you — no questions asked.

Need items in bulk? Contact us for a custom quote or invoice.
Save an additional 3% off your order when paying via ACH or Wire transfer.

Save $120 Today

UP TO
15% OFF

Get up to 15% off sitewide. Or save an additional $120 off any order over $3,000 — use code AM120 at checkout.

AM120

The G300 Pro is the fastest bike HappyRun builds. A 72V 30Ah pack drives a motor that peaks at 6500W, and at full power the bike will run to 50 mph, with a low-speed mode that caps it at 28 mph when you want it calmer. Range is 70+ miles, and fast charging brings the pack to 80% in about 2.5 hours.

The chassis was built around that speed. Inverted aluminium front forks and a heavy vertical rear shock handle the hits, hydraulic brakes with a 180mm front and 203mm rear rotor haul it down, and 19 in front / 17 in rear high-traction tires keep it planted on loose ground. A 2000-lumen headlight and integrated taillight with turn signals cover night riding.

Everything reports to a mid-mounted color LCD showing speed, assist level, battery and mileage. The carbon steel frame carries up to 350 lbs and fits riders from 5'1" to 6'5" at a 31 in seat height.

⚠️ OFF-ROAD USE ONLY — NOT STREET LEGAL

This vehicle is designed exclusively for recreational off-road riding and is not street legal. It is intended for use on private property, dirt trails, motocross tracks, and designated off-road riding areas only. This product is NOT classified as a transportation vehicle and may not be operated on public roads, highways, sidewalks, bike lanes, or any public-access roadway. This product does not include a VIN, title, or registration and is sold strictly as recreational off-road sporting equipment. Always wear a DOT-approved helmet and appropriate protective gear. Off-road vehicle laws vary by state — riders are responsible for reviewing and complying with all applicable local regulations.

Motor & Battery

  • Motor: 72V, 6500W peak
  • Battery: 72V 30Ah lithium, removable
  • Charger: 5A, 5-6 hours for a full charge
  • Fast Charge: About 80% in 2.5 hours

Performance

  • Top Speed: 50 mph at full power, 28 mph in low-speed mode
  • Range: 70+ miles
  • Throttle: Half twist
  • Waterproof Rating: IPX5

Chassis

  • Frame: High-strength carbon steel
  • Suspension: Full suspension
  • Front Fork: Adjustable aluminium alloy, 80-120mm travel
  • Brakes: Hydraulic, 180mm front / 203mm rear
  • Tires: Front 70/100-19, rear 70/100-17

Lighting & Display

  • Headlight: 2000 lumen LED
  • Taillight: Integrated with brake indicator and turn signals
  • Display: Mid-mounted color LCD

Size & Fit

  • Weight: 136.8 lbs
  • Total Length: 68.5 in
  • Wheelbase: 47.2 in
  • Seat Height: 31 in
  • Max Payload: 350 lbs
  • Rider Height: 5'1" - 6'5"

  • 6500W peak motor and a 72V 30Ah battery
  • 50 mph at full power, with a 28 mph low-speed mode
  • 70+ miles of range, 80% charge in about 2.5 hours
  • Inverted adjustable front forks and heavy rear shock
  • Hydraulic brakes with oversized 203mm rear rotor
  • 2000 lumen headlight, integrated taillight and turn signals
  • Mid-mounted color LCD display
  • 350 lb payload on a carbon steel frame

Coverage runs from the date of delivery against defects in materials and workmanship: 24 months on the frame, 12 months on the front fork and handlebar, 12 months on the motor, controller, charger, wiring harness and battery, 6 months on the display, throttle and wheel components, and 3 months on tires, saddle, fenders, brakes, brake levers, lights, keys and switches.

The battery is engineered to hold up to 75% of its original capacity for up to 300 charge cycles.

The warranty does not cover normal wear and tear, damage from abuse, neglect, misuse or accidents, damage caused by stunt riding or jumping, water ingress, or any self-modification. To start a claim, contact Adventure Motion support with your order number and photos of the issue.

How fast is the g300 pro?
Up to 50 mph at full power. a low-speed mode limits it to 28 mph for tighter trails and newer riders.
What is the range?
70+ miles from the 72v 30ah battery, depending on speed, terrain and rider weight.
How long does it take to charge?
About 5-6 hours for a full charge with the 5a charger, or roughly 2.5 hours to reach 80%.
Who does it fit?
Riders from 5'1" to 6'5", with a 31 in seat height and a 350 lb payload limit.
Does it need assembly?
It arrives about 80% assembled, with tools and a video guide included.
Is it street legal?
No. it is an off-road recreational vehicle. check your local rules before riding anywhere but private property, trails or ohv areas.

Customers also bought

    Customers are saying

    5.00 ★ (9)
    Verified