Michael Waldman, 53, Ashford, Kent, suffered fatal injuries when his Kawasaki ZX-6R collided with a Seat Ibiza on the B2096 near Netherfield.
He was travelling towards Battle with three other motorcyclists at the time of the crash on Sunday.
The driver of the Seat, a 30-year-old woman from Sedlescombe, was not hurt in the incident.
A motorcyclist who was killed in a collision during a group ride in East Sussex has been named by police.