Over 600 were expected to attend and that number appeared to hold true as an impassioned band of bikers braved the rain to complete three 10-mile laps around the USAF communications station under an enthusiastic escort from Northamptonshire Police motorcycle division.
Local MP Andrea Leadsom spoke to the press alongside family representative Radd Seiger before the ride rolled out.
"I never had the pleasure of meeting him myself, but I can see how very loved Harry Dunn was," said Leadsom. "Something terrible happened and the person who caused Harry’s death has walked away with the help and support of the United States government.