From Guild Wars 2 Wiki
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Riding Broom is a gizmo that can be used to "fly" around on a broomstick. It does not increase the speed of the player. The five races ride the broom in five different ways.“
Travel: Double-click to equip a bundle that can change how you move around the world.
— In-game description
|1||Ride Broom||0||7||Jump on your broom and ride around.|
- Cannot be used in WvW.