human
I've been thinking about buying an electric bike. What should I know before buying one?
assistant
1.  Research different types of electric bikes and their features, such as battery life, speed, cost, and weight.
2.  Consider your budget and the distance you plan to travel with the electric bike.
3.  Test ride an electric bike at a local shop or rental facility.
4.  Make sure to check the brakes on the electric bike for safety.