The **fuel tank of the Honda CG 125 (1999 model)** is an iconic part of the motorcycle's design, both in terms of aesthetics and functionality. It reflects the rugged, durable nature of the CG 125, which is known for being reliable, low-maintenance, and suitable for a wide range of riding conditions.

Here’s a closer look at its key features and technical details:

### 1. **Design and Aesthetics**:
- **Classic Teardrop Shape**: The fuel tank has a **teardrop shape**, a design feature that has remained consistent in many versions of the CG 125. This design offers a balance between fuel capacity and maintaining the bike’s compact, lightweight profile.
- **Metal Construction**: Made from high-quality **stamped steel**, the tank is strong and durable, designed to withstand minor impacts, road debris, and long-term wear.
- **Paint & Decals**: The 1999 model comes with the traditional **Honda decals** or stickers on both sides of the tank, adding to its vintage appeal. The colors and striping vary based on the region and specific edition of the bike but typically feature classic combinations like **black, red, or blue** with contrasting stripes and the Honda logo.

### 2. **Fuel Capacity**:
- The fuel tank has a capacity of approximately **9.2 liters (2.4 gallons)**, which includes a **reserve** section of around **1.5 liters (0.4 gallons)**. This provides the bike with a reasonable range for commuting and casual riding, especially given the fuel efficiency of the 125cc engine.
- The fuel tank's capacity is optimized for the bike’s low fuel consumption, making it suitable for long-distance rides and areas with fewer fuel stations.

### 3. **Fuel Cap and Lock**:
- The fuel tank features a **lockable fuel cap** for security, preventing unauthorized access or fuel theft. This was a standard feature in the 1999 model, emphasizing practicality.
- The cap is easy to remove and replace, with a key-operated lock mechanism that enhances security, particularly in public parking areas.

### 4. **Fuel Tap (Petcock)**:
- Below the fuel tank, the CG 125 comes with a **manual fuel tap** (petcock) that allows the rider to switch between the **main fuel supply** and **reserve**. This feature lets the rider know when they are running low on fuel and should refuel soon.
- The petcock has three positions: **ON, OFF, and RESERVE**, allowing the rider to control fuel flow manually.

### 5. **Mounting and Fitment**:
- The tank is bolted securely to the bike’s frame using a simple mounting system, ensuring it stays in place even on rough terrain.
- Rubber bushings are often used in the mounting process to reduce vibrations from the engine, which helps protect the tank and frame from wear over time.

### 6. **Maintenance and Durability**:
- The fuel tank is coated with anti-corrosion material from the inside to prevent rust, though over time, particularly in humid or wet climates, some older tanks may develop rust or corrosion.