8yu timing belt

A motorcycle drive belt is a rubberized belt that connects the engine's output to the rear wheel. Unlike chains or shafts, which are other common drive systems, belts use a loop of material that can easily bend and stretch. The design of a drive belt usually features teeth or grooves that grip the pulleys, ensuring efficient power transfer. These belts are typically made from durable materials like polyurethane or reinforced rubber, which provides strength and flexibility.


...

A ribbed belt, also known as a serpentine belt, is a continuous belt with longitudinal grooves running along its length. These grooves enable the belt to grip the pulleys more effectively, reducing slippage and improving power transfer between the engine and various auxiliary components. In modern vehicles, including the W211, ribbed belts are used to drive multiple accessories such as the alternator, water pump, power steering pump, and air conditioning compressor.


...