What are the different types of bottom brackets used in bike frames and how do they affect the performance of the bike?

There are three main types of bottom brackets used in bike frames: threaded, press-fit, and eccentric. Threaded bottom brackets are screwed into the frame, press-fit bottom brackets are pressed into the frame, and eccentric bottom brackets allow for adjustable chain tension. The type of bottom bracket used can affect the performance of the bike by influencing factors such as weight, stiffness, durability, and maintenance requirements.