What license do you need to ride a quad in Spain?

To legally drive a quad bike in Spain, you need to have an A2 or B license, depending on the power and weight of the vehicle. Here's a breakdown:

- A2 license: Allows you to drive quad bikes with an engine capacity up to 35 kW and a weight ratio (power-to-weight ratio) not exceeding 0.2 kW per kilogram.

- B license: Allows you to drive quad bikes with an engine capacity up to 15 kW and a weight ratio not exceeding 0.1 kW per kilogram.

In addition to the appropriate license, you must also wear a helmet and other protective gear when riding a quad bike. It's important to note that the specific regulations may vary depending on the autonomous region in Spain, so it's always best to check the local laws before operating a quad bike.