Introduction
This manual provides essential information for the safe assembly, operation, and maintenance of your X-Pro Bolt 125cc Dirt Bike. Please read all instructions carefully before using the motorcycle to ensure proper function and rider safety. The X-Pro Bolt 125cc features a Zongshen engine and a 4-speed semi-automatic transmission, designed for youth riders.
Safety Information
WARNING: Improper use of this motorcycle can cause loss of control, leading to severe injury or death. Always use a helmet and appropriate safety gear. Never operate this vehicle on public roads or under the influence of alcohol. This vehicle is not designed to carry passengers.
- Always wear a DOT-approved helmet, eye protection, and protective clothing (gloves, long sleeves, long pants, boots) when riding.
- Never ride on public roads, streets, or highways. This dirt bike is intended for off-road use only.
- Do not operate the motorcycle over speeds too fast for your skill or road conditions.
- Never carry passengers.
- Never operate the motorcycle under the influence of alcohol or drugs.
- Regularly check tire pressure: Front and Rear: 15-18 psi (103-124 kPa). Never set tire pressure below the recommended level, as it could cause the tire to dislodge from the rim.
What's in the Box
Your X-Pro Bolt 125cc Dirt Bike package includes the following components:
- X-Pro Bolt 125cc Dirt Bike (partially assembled)
- Instruction Manual
- Handlebar brackets
- Wheels
- Brakes
- Number plate and fender
- Assembly tools (may vary by model)

Figure 1: X-Pro Bolt 125cc Dirt Bike as received in its protective metal shipping crate.

Figure 2: The exterior packaging box for the X-Pro Bolt 125cc Dirt Bike.
Setup and Assembly
Your X-Pro Bolt 125cc Dirt Bike requires some assembly. This typically includes attaching the handlebars, front wheel, front fender, and connecting brake components. Please follow the detailed steps provided in the assembly videos below for a smooth setup process.
Assembly Videos:
X-PRO 125cc Semi Dirtbike Assembly Video
This video provides a comprehensive guide to assembling your X-Pro 125cc Semi Dirtbike, covering key steps from uncrating to final checks.
X-PRO Bolt 125 Dirtbike Assembly Video
A detailed assembly video specifically for the X-Pro Bolt 125 Dirtbike, demonstrating the installation of various components.
X-PRO Storm 125 Semi-Automatic Transmission Assembly Video
This video focuses on the assembly and setup of the semi-automatic transmission for the X-Pro Storm 125, which is similar to the Bolt 125cc model.
Operating Instructions
The X-Pro Bolt 125cc Dirt Bike features a 4-speed semi-automatic transmission, making it suitable for riders transitioning to manual gears. Ensure all pre-ride checks are completed before starting the engine.
Starting the Engine:
- Ensure the fuel line is in the ON position.
- Engage the choke if starting a cold engine.
- Use the kick-start lever to start the engine.
- Once the engine warms up, disengage the choke.
Operating the Semi-Automatic Transmission:
The semi-automatic transmission allows for gear changes without a clutch lever. Shift gears by pressing the foot shifter up or down. Practice shifting in a safe, open area until you are comfortable with the operation.
Operation Videos:
Easy Start SYX MOTO VK Dirt Bike
This short video demonstrates the easy starting procedure for a similar dirt bike model, the SYX MOTO VK, which can be applied to the X-Pro Bolt 125cc.
Start driving your SYX MOTO VK
This video provides a brief overview of how to begin riding a similar dirt bike model, the SYX MOTO VK, offering general operational guidance.
Maintenance
Regular maintenance is crucial for the longevity and safe operation of your dirt bike. Perform the following checks and tasks regularly:
- Tire Pressure: Maintain cold tire pressure at 15-18 psi (103-124 kPa) for both front and rear tires. Incorrect tire pressure can lead to loss of control or tire dislodgement.
- Chain Maintenance: Keep the drive chain clean, lubricated, and properly tensioned.
- Brake System: Inspect brake fluid levels, brake pads, and brake lines regularly. Ensure brakes are responsive and free from leaks.
- Engine Oil: Check engine oil level before each ride and change according to the recommended schedule in the full owner's manual.
- Fasteners: Periodically check all nuts, bolts, and fasteners for tightness.
Troubleshooting
If you encounter issues with your X-Pro Bolt 125cc Dirt Bike, consider the following common troubleshooting steps:
- Starting Issues: Ensure the fuel line is open, the choke is engaged for cold starts, and there is sufficient fuel in the tank. Check the spark plug for fouling.
- Engine Bogging/Poor Performance: This can sometimes be related to carburetor adjustments. Consult a qualified technician if you are unsure how to adjust the carburetor.
- Brake Problems: Check for proper brake fluid levels and ensure brake pads are not excessively worn.
- Unusual Noises: Investigate any new or unusual sounds immediately. This could indicate loose components or internal engine issues.
For complex issues, it is recommended to consult a certified powersports mechanic.
Specifications
| Feature | Specification |
|---|---|
| Bike Type | Dirtbike |
| Brand | X-PRO |
| Number of Speeds | 4 |
| Color | Black |
| Wheel Size | 14 Inches (Front), 12 Inches (Rear) |
| Frame Material | Alloy Steel (Cradle Type Steel Tube Frame) |
| Suspension Type | Dual |
| Power Source | Internal Combustion Engine (Zongshen Brand Engine) |
| Maximum Weight Recommendation | 165 Pounds |
| Minimum User Height | 29 Inches |
| Assembly Required | Yes |
| Brake Style | Caliper, Disc |
Warranty and Support
The warranty type for this product is listed as 'Not Obtainable or Not Applicable'. For specific warranty details or support inquiries, please refer to the official X-PRO store or contact customer service directly.
Visit the official X-PRO Store for additional products and support: X-PRO Store
Product Overview

Figure 3: Rear view of the X-Pro Bolt 125cc Dirt Bike, highlighting the exhaust and rear wheel.

Figure 4: Front view of the X-Pro Bolt 125cc Dirt Bike, showing the handlebars and front suspension.

Figure 5: Side view of the X-Pro Bolt 125cc Dirt Bike, showcasing its overall design and engine.





