What are the different types of bike calipers available in the market?

The different types of bike calipers available in the market are rim brakes and disc brakes. Rim brakes use pads that grip the wheel rim to slow down the bike, while disc brakes use pads that grip a rotor attached to the wheel hub. Each type has its own advantages and disadvantages, so it's important to choose the one that best suits your riding style and needs.