1. Introducció i finalview
This manual provides essential information for the safe assembly, operation, and maintenance of your X-PRO 125cc Dirt Bike, Model XB27B-125. This vehicle is designed for off-road use only and features a 4-speed semi-automatic transmission with 14"/12" tires. Please read this manual thoroughly before operating the dirt bike to ensure proper usage and safety.
2. Informació de seguretat
Your safety is paramount. Failure to follow these instructions can result in serious injury or death. Always prioritize safety when operating this vehicle.
- Always wear appropriate safety gear: This includes a helmet, eye protection, gloves, long pants, and sturdy boots.
- Només per a ús fora de la carretera: This dirt bike is not intended for use on public roads, streets, or highways.
- Supervisió d'adults: Children and youth operating this vehicle must always be supervised by a responsible adult.
- Inspecció prèvia a la marxa: Always perform a thorough inspection before each ride, checking brakes, tires, controls, and fuel levels.
- Never operate under the influence: Do not operate the dirt bike while under the influence of alcohol or drugs.
- Passenger Restriction: This vehicle is designed for a single rider only. Do not carry passengers.
3. Contingut del paquet
Upon receiving your X-PRO 125cc Dirt Bike, carefully unbox and inspect all components. The package typically includes:
- X-PRO 125cc Dirt Bike (partially assembled)
- Roda davantera
- Tirador
- Parafang davanter
- Matrícula
- Kit d'eines
- Manual d'instruccions (aquest document)
- Battery (may require connection)
Refer to the assembly video for a visual guide to unpacking and identifying components.

Image: X-PRO 125cc Dirt Bike securely packaged within its metal shipping crate.

Image: The exterior of the X-PRO Dirt Bike shipping box, indicating model and brand.
4. Muntatge i muntatge
Some assembly is required for your X-PRO 125cc Dirt Bike. This typically includes attaching the handlebars, front wheel, brakes, number plate, and fender. Follow the steps below and refer to the assembly video for detailed visual guidance.
4.1 Unboxing and Frame Removal
Carefully cut the straps and open the cardboard box. Remove the top section of the metal frame. Then, remove the side panels of the frame by unscrewing the bolts. Lift the main bike assembly out of the remaining frame base.
Video: X-PRO Storm 125 Semi-Automatic Transmission Assembly Video. This video demonstrates the unboxing and initial assembly steps for the dirt bike.
4.2 Instal·lació del manillar
Enganxeu el manillar clamps to the top triple clamp. Position the handlebars and secure them with the top clamps and bolts. Ensure all cables are routed correctly and not pinched.
4.3 Front Wheel and Brake Installation
Insert the axle through the front fork legs and the wheel hub. Ensure the brake rotor aligns with the caliper. Secure the axle nut. Attach the brake caliper to the fork using the provided bolts.

Imatge: Frontal view of the X-PRO 125cc Dirt Bike, highlighting the front wheel and suspension assembly.
4.4 Front Fender and Number Plate Attachment
Mount the front fender to the lower triple clamp using the designated bolts. Attach the number plate to the front of the handlebars/forks.
4.5 Connexió de la bateria
Locate the battery compartment, usually under the seat. Connect the positive (+) red terminal first, then the negative (-) black terminal. Ensure connections are secure.
4.6 Rear Shock Adjustment (if applicable)
If your model features adjustable rear shocks, refer to the specific instructions in your quick guide for proper adjustment based on rider weight and terrain.

Imatge: Lateral view of the fully assembled X-PRO 125cc Dirt Bike, showcasinel seu disseny i components.

Imatge: Part posterior view of the X-PRO 125cc Dirt Bike, showing the exhaust and rear wheel.
5. Instruccions de funcionament
Familiaritzeu-vos amb els controls abans d'engegar el motor.
5.1 Comprovacions prèvies a la conducció
- Combustible: Ensure the fuel tank contains fresh, unleaded gasoline.
- Oli: Check engine oil level using the dipstick.
- Pneumàtics: Verify tire pressure is within recommended limits.
- Frens: Proveu els frens davanters i posteriors per a un bon funcionament.
- Cadena: Inspect chain tension and lubrication.
- Controls: Check throttle, clutch (if applicable), and shifter for smooth operation.
5.2 Arrencada del motor
- Gireu la vàlvula de combustible a la posició 'ON'.
- If the engine is cold, pull the choke lever to the 'ON' position.
- Col·loqueu la transmissió en neutre.
- Use the kickstarter or electric start (if equipped) to start the engine.
- Once the engine warms up, push the choke lever to the 'OFF' position.
5.3 Gear Shifting (Semi-Automatic)
This dirt bike features a 4-speed semi-automatic transmission, meaning there is no manual clutch lever. To shift gears:
- To shift up, gently lift the shift lever with your foot.
- To shift down, press the shift lever down with your foot.
- The engine will automatically engage the clutch when you shift.
5.4 Frenades
The dirt bike is equipped with disc brakes. Use both front and rear brakes simultaneously for effective stopping. Practice braking at low speeds to understand their response.
6. Manteniment
Un manteniment regular és crucial per a la longevitat i el funcionament segur de la teva moto de cross.
- Oli de motor: Change engine oil after the first 5 hours of operation, then every 10-15 hours or as recommended in the quick guide.
- Filtre d'aire: Netegeu o substituïu el filtre d'aire regularment, especialment després de conduir en condicions de pols.
- Manteniment de la cadena: Mantingueu la cadena de transmissió neta, lubricada i correctament tensada.
- Frens: Inspect brake pads and fluid levels regularly. Adjust as needed.
- Pneumàtics: Check tire pressure and tread wear before each ride.
- Elements de fixació: Periodically check and tighten all nuts, bolts, and fasteners.
7. Solució De Problemes
Aquí teniu alguns problemes comuns i possibles solucions:
- El motor no arrenca:
- Check fuel level and fuel valve position.
- Ensure choke is on if the engine is cold.
- Verify spark plug is clean and connected.
- Check battery connections if using electric start.
- Pèrdua de poder:
- Inspect air filter for clogging.
- Check fuel quality and flow.
- Examine spark plug for fouling.
- Els frens es veuen esponjosos:
- Comproveu el nivell del líquid de fre.
- Inspect brake lines for leaks.
- Brakes may need bleeding or adjustment.
For persistent issues, consult a qualified technician or contact X-PRO customer support.
8. Especificacions
| Especificació | Valor |
|---|---|
| Tipus de bicicleta | Bicicleta infantil |
| Interval d'edat (descripció) | Kid, Youth |
| Marca | X-PRO |
| Nombre de velocitats | 4 |
| Color | Negre |
| Mida de la roda | 14 Inches (Front), 12 Inches (Rear) |
| Material del marc | Acer d'aliatge |
| Tipus de suspensió | Davant, darrere |
| Característica especial | Off-road |
| Pes de l'article | 123 lliures |
| Estil de fre | Disc |
| Nom del model | X-PRO Storm 125cc Dirtbike |
| Font d'alimentació | Motor de combustió interna |
| Recomanació de pes màxim | 165 lliures |
| Muntatge obligatori | Sí |
| Bicycle Drivetrain Type | Semiautomàtic |
| Alçada mínima de l'usuari | 29 polzades |
9. Garantia i Suport
The X-PRO 125cc Dirt Bike comes with a Garantia limitada de 1 mesos. For warranty claims, technical assistance, or parts inquiries, please contact X-PRO customer support directly. Refer to your purchase documentation for specific contact details.





