1. Уводзіны
This manual provides essential information for the safe operation, assembly, maintenance, and troubleshooting of your HAPPYRUN G300 Pro Electric Dirt Bike. Please read this manual thoroughly before operating the bike to ensure proper use and to maximize your riding experience.
The HAPPYRUN G300 Pro is an electric dirt bike designed for adult riders, offering a powerful 6500W motor, a top speed of 50 MPH, and a range of up to 70 miles. It features a 72V 30Ah removable battery and hydraulic brakes for enhanced performance and safety.
2. Інфармацыя па бяспецы
Always prioritize safety when operating the HAPPYRUN G300 Pro. Failure to follow safety guidelines can result in serious injury or damage to the product.
2.1 Агульныя меры бяспекі
- Always wear a helmet, eye protection, and appropriate riding gear (gloves, long pants, sturdy shoes) when operating the bike.
- Перад кожнай паездкай пераканайцеся, што ўсе кампаненты надзейна замацаваны і знаходзяцца ў добрым працоўным стане.
- Не кіруйце роварам пад уздзеяннем алкаголю або наркотыкаў.
- Будзьце ўважлівыя да наваколля і ездзіце абаронча.
- Adhere to all local laws and regulations regarding electric bike operation.
- The maximum load capacity is 350 pounds. Do not exceed this limit.
2.2 Бяспека акумулятара
- Use only the charger provided by HAPPYRUN.
- Не падвяргайце батарэю ўздзеянню экстрэмальных тэмператур або прамых сонечных прамянёў.
- Avoid puncturing, dropping, or damaging the battery.
- Keep the battery away from water and moisture. The battery has an IP65 waterproof rating, but direct submersion should be avoided.
- If the battery shows signs of damage, swelling, or overheating, discontinue use immediately and contact support.
3. Змесціва ўпакоўкі
Upon unpacking, verify that all items are present and undamaged. If any items are missing or damaged, contact HAPPYRUN customer support.
- HAPPYRUN G300 Pro Electric Dirt Bike (main frame with motor and wheels)
- 72V 30Ah Removable Battery
- Зарадная прылада
- Падстаўка
- Кіраўніцтва карыстальніка (гэты дакумент)
- Інструменты для зборкі (могуць адрознівацца)

Image: The HAPPYRUN G300 Pro Electric Dirt Bike shown with included accessories like a handlebar bag and lock.
4. Зборка і ўстаноўка
The HAPPYRUN G300 Pro requires some assembly. Follow these steps carefully.
4.1 Распакаванне
- Асцярожна дастаньце ровар і ўсе кампаненты з упакоўкі.
- Inspect for any shipping damage. Report any issues to the retailer immediately.
4.2 Устаноўка руля
- Прымацуйце руль да выноса, забяспечваючы правільнае выраўноўванне.
- Tighten all bolts securely using the provided tools.
4.3 Устаноўка пярэдняга кола
- Insert the front wheel into the fork dropouts.
- Ensure the brake rotor is correctly seated within the caliper.
- Secure the wheel with the quick-release skewer or axle nuts.
4.4 Усталёўка і зарадка акумулятара
- Знайдзіце батарэйны адсек.
- Insert the 72V 30Ah battery, ensuring it clicks into place securely.
- Падключыце зарадную прыладу да порта зарадкі акумулятара, а затым да разеткі.
- Allow 4-6 hours for a full charge. The battery charges to 80% in approximately 2 hours.

Выява: Крупны план view of the HAPPYRUN G300 Pro's battery compartment, highlighting the removable 72V 30Ah battery and its specifications.
5. Інструкцыя па эксплуатацыі
Перад першай паездкай азнаёмцеся з элементамі кіравання і рэжымамі язды.
5.1 Упраўленне надview
- Кнопка харчавання: Turns the bike on/off.
- Дросель: Located on the right handlebar, controls motor power. The bike features a half-throttle for precise acceleration.
- Тармазныя рычагі: Front and rear hydraulic disc brakes for stopping.
- Дысплей: Digital display shows speed, battery level, riding mode, and other information.
- Перамыкач перадач: 7-speed electronic gear shifting for pedal assist mode.

Image: A rider on the HAPPYRUN G300 Pro, with an inset showing the half-throttle for precision acceleration.

Image: Close-up of the HAPPYRUN G300 Pro's full-color digital dashboard, displaying speed, battery, and other ride metrics.
5.2 Рэжымы язды
The G300 Pro offers three distinct riding modes:
- Рэжым педалі: Operates like a traditional bicycle, using pedal power. Suitable for city bike lanes or when conserving battery.
- Pedal Assist (PAS) Mode: Provides motor assistance while pedaling. Offers an extended range of up to 70 miles.
- Full Throttle Mode: Engages the motor directly via the throttle, providing full electric power. Ideal for off-road use and achieving the top speed of 50 MPH.

Image: Diagram illustrating the three riding modes: Pedal Mode, PAS Assist Mode (70 miles range), and Pure Electric (Full Throttle) Mode (45 miles range).
5.3 Кантрольны спіс перад паездкай
- Праверце ціск у шынах.
- Verify brake functionality (front and rear).
- Пераканайцеся, што акумулятар зараджаны і надзейна ўсталяваны.
- Confirm all bolts and quick releases are tight.
- Test lights and horn.
6. Тэхнічнае абслугоўванне
Regular maintenance ensures the longevity and safe operation of your HAPPYRUN G300 Pro.
6.1 Рэгулярныя праверкі
- шыны: Inspect for wear, punctures, and maintain recommended pressure.
- тармазы: Check brake pads for wear and ensure hydraulic fluid levels are adequate. Adjust as needed.
- Ланцуг: Трымайце ланцуг чыстым і змазаным.
- Зашпількі: Periodically check and tighten all bolts and screws.
- Падвеска: Inspect forks and rear shocks for leaks or damage.

Выява: Падрабязная view of the HAPPYRUN G300 Pro's front wheel, hydraulic disc brake, and suspension fork.
6.2 Ачыстка і захоўванне
- Ачысціце ровар damp тканінай. Пазбягайце мыцця пад высокім ціскам непасрэдна на электрычныя кампаненты.
- Store the bike in a cool, dry place, away from direct sunlight and extreme temperatures.
- If storing for an extended period, charge the battery to approximately 50-70% and check it periodically.
7. Выпраўленне непаладак
This section addresses common issues you might encounter with your HAPPYRUN G300 Pro.
| праблема | Магчымая прычына | Рашэнне |
|---|---|---|
| Веласіпед не ўключаецца. | Акумулятар не зараджаны або няправільна ўсталяваны. | Ensure battery is fully charged and securely seated. Check connections. |
| Рухавік не ўключаецца. | Throttle issue, riding mode selection, or motor connection. | Check throttle cable. Ensure correct riding mode is selected. Inspect motor connections. |
| Тормазы адчуваюцца слабымі. | Worn brake pads, air in hydraulic lines, or low fluid. | Inspect and replace brake pads if worn. Bleed hydraulic brakes or consult a professional. |
| Паменшаны дыяпазон. | Low tire pressure, riding conditions, or battery degradation. | Maintain proper tire pressure. Consider riding in PAS mode. Battery capacity naturally decreases over time. |
If you encounter issues not listed here or require further assistance, please contact HAPPYRUN customer support.
8. Тэхнічныя характарыстыкі
Key technical specifications for the HAPPYRUN G300 Pro Electric Dirt Bike.
| Асаблівасць | Спецыфікацыя |
|---|---|
| Назва мадэлі | HR-G300 Pro |
| Магутнасць рухавіка | 6500 Вт (пікавая) |
| Максімальная хуткасць | 50 міль у гадзіну |
| акумулятар | 72V 30Ah (2160Wh) Removable Lithium Battery |
| Максімальная далёкасць | Up to 70 miles (PAS mode) |
| Час зарадкі | 4-6 hours (80% in 2 hours) |
| Максімальная грузападымальнасць | 350 фунта |
| Вага ровара | 95 фунта |
| Памер колы | 17 цалі |
| Тормазы | Двайныя гідраўлічныя дыскавыя тармазы |
| Падвеска | Dual Suspension (43mm forged fork, twin rear shocks) |
| Матэрыял каркаса | Вугляродзістай сталі |
| Колькасць хуткасцяў | 7 (Electronic Gear Shifter) |
| Рэйтынг воданепранікальнасці | IP65 (Battery) |
| Рэкамендуемая вышыня | ад 143 да 198 см |

Image: Diagram showing the dimensions and weight specifications of the HAPPYRUN G300 Pro, including motorcycle weight (178 lbs), max load (350 lbs), and recommended rider height (5'5" to 6'3"). Note: Item weight is 95 lbs.
9. Гарантыя і падтрымка
9.1 Інфармацыя аб гарантыі
The HAPPYRUN G300 Pro Electric Dirt Bike comes with a 1-гадовая абмежаваная гарантыя. This warranty covers manufacturing defects in materials and workmanship. It does not cover damage due to misuse, accidents, normal wear and tear, or unauthorized modifications.
For specific warranty terms and conditions, please refer to the warranty card included with your product or contact HAPPYRUN customer support.
9.2 Падтрымка кліентаў
For technical assistance, troubleshooting, or warranty claims, please contact HAPPYRUN customer support through the retailer where you purchased the product or visit the official HAPPYRUN webсайт.
When contacting support, please have your model name (HR-G300 Pro) and purchase date available.