Given the name, most people assume the Tour De France starts on the opposite side of the English Channel from England. But Prince William and Prince Harry actually launched the big cycling race in London on Saturday (July 5).

Joined by Kate Middleton, William and his handsome brother showed up at Harewood House where hundreds of spectators had gathered to witness the big event.

During the festivities, the Duke and Duchess of Cambridge stopped to talk to Claire Tupland, who also brought her balloon-wielding 22-month-old son Mason.

Will referred to his own youngster as he stated, “George would have popped that by now,” to which Kate added, “He’s more interested in helicopters and anything with wheels.”