The Bajaj Pulsar 135 motorcycle is equipped with rocker arms as part of its valve train mechanism. Rocker arms play a critical role in opening and closing the engine's valves. However, I don't have access to specific information about the rocker arm model for the Bajaj Pulsar 135. Here is some general information about motorcycle rocker arms:

Function: Rocker arms are responsible for transmitting the motion from the camshaft to the valves. They convert the rotational motion of the camshaft into linear motion to open and close the valves at the appropriate timing.

Design: Rocker arms are typically metal components with a pivoting point in the middle. One end of the rocker arm is in contact with the camshaft, while the other end is in contact with the valve stem. As the camshaft rotates, it pushes the rocker arm, which, in turn, pushes the valve down to open it. When the camshaft lobe moves away, the rocker arm returns to its original position, allowing the valve to close.

Material and Manufacturing: Rocker arms are commonly made of steel or aluminum alloys to withstand the stresses and high temperatures within the engine. The manufacturing process involves precision machining to ensure proper fit and function.

Maintenance: Proper maintenance of rocker arms is essential for optimal engine performance. This includes regular inspection for wear or damage, ensuring proper lubrication, and adjusting valve clearances if necessary.

For specific details about the rocker arm model used in the Bajaj Pulsar 135 motorcycle, I recommend referring to the official Bajaj documentation, contacting authorized Bajaj dealers or service centers, or reaching out to Bajaj customer support for accurate and up-to-date information.