Customized Motorcycle Tyre Inner Tubes 2.75-17 Dirt Bike Tire Tube OEM

Motorcycle inner tube, off-road vehicle tires, road tires, whole sale tires,2.75-17 2.75-21

A. Tube Body

The main body of an inner tube is typically made from a flexible and air - tight material. It is designed to hold the air pressure within a specific range. The tube body has a seamless or welded structure depending on the manufacturing process. In high - quality inner tubes, the seamless construction reduces the risk of weak points and air leakage. For example, in some advanced bicycle inner tubes, a seamless extrusion process is used to create a uniform and durable tube body.

B. Valve

The valve is an integral part of the inner tube. It allows air to be pumped into the tube and also maintains the air pressure inside. There are different types of valves, such as Presta valves, Schrader valves, and Dunlop valves.

1. Presta Valve
   Presta valves are commonly used in high - performance bicycles. They have a narrow diameter and a screw - on cap. The valve has a small internal diameter which can hold high pressures. It consists of a valve stem that can be locked in place to prevent air from escaping during use. The design of the Presta valve enables precise control of air pressure, making it ideal for racing bikes where every ounce of weight and every bit of performance matters.
2. Schrader Valve
   Schrader valves are more widely used in automobiles, motorcycles, and some lower - end bicycles. They have a larger diameter compared to Presta valves. The design includes a spring - loaded core that opens when air is pumped in and closes to maintain pressure. The simplicity and durability of Schrader valves make them suitable for applications where ease of use and robustness are more important than achieving extremely high pressures.
3. Dunlop Valve
   Dunlop valves are less common nowadays but still used in some specific applications. They have a unique design with a wider base and a different threading system compared to the other two types.