What is the fine-grained topic of the following text: At a venue known for speed – Daytona International Speedway – Harley-Davidson took a moment to slow down and say “thank you,” inviting a group of military personnel and first responders to take an unforgettable ride around the “World Center of Racing” during the 75th Annual Daytona Bike Week. Only return the topic.
Harley-Davidson event for military personnel and first responders at Daytona Bike Week