When riding a **motorcycle with a passenger**, it is important to consider that the **additional weight** affects the vehicle's behavior, especially when braking.

- **Braking and stability:** When carrying a passenger, the extra weight on the rear of the motorcycle makes it **more difficult for the rear wheel to lock** when braking. This is because the additional weight increases the traction of the rear wheel, which can improve stability during braking.

- **Passenger position:** The passenger should sit properly behind the driver, with their feet on the footrests, to maintain the vehicle's balance and stability. This also contributes to an adequate weight distribution, which is crucial for safe braking.

- **Safety:** Both the driver and the passenger must wear a properly fastened helmet to protect themselves in case of an accident, as motorcycles are more fragile and less stable than other vehicles.

In summary, when carrying a passenger on a motorcycle, the additional weight can improve the rear wheel's traction, making it less likely to lock when braking.