system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is the difference between a road bike and a mountain bike?


assistant
Road bikes are built to be ridden on asphalt and cement surfaces and have thin tires, whereas mountain bikes are built to be ridden on dirt and have wider tires. Road bikes also have more aerodynamic handle bars while mountain bike handle bars a built for less responsive steering while bouncing around off the road.