What are the different types of bike cable end caps available in the market and how do they affect the performance and durability of a bicycle?

There are various types of bike cable end caps available, including metal, plastic, and rubber. Metal end caps are durable but can add weight to the bike. Plastic end caps are lightweight but may not be as durable. Rubber end caps are flexible and can provide a snug fit, but may wear out faster. The choice of end cap can affect the performance and durability of a bicycle by impacting the cable's protection from dirt and moisture, as well as the overall aesthetics of the bike.