<human>:  What should I look for when buying a bike?
<bot>: When buying a bike, it's important to consider the type of bike that best suits your needs. Think about what type of terrain you'll be riding on, your budget, and the type of riding you'll be doing. Look for a bike with a quality frame, good suspension and brakes, and suitably sized wheels for the type of riding you plan to do. Make sure the bike is the right fit – consider factors such as frame size, seat height, handlebar reach, and adjustable components like the stem and saddle. Finally, check the bike's components, such as the drivetrain, chain, pedals, tires, and brake pads, and make sure they are in good condition.