Rene Wiese, 31, suffered fatal injuries when his Kawasaki ZR800 and a JCB Backhoe tractor crashed on the A27 at Ashcombe, near Lewes on Thursday.
The German national, who lived in Alice Street, Hove, was pronounced dead at the scene.
Sussex Police has appealed for anyone who saw the crash to contact officers.
The 20-year-old man from Plumpton, near Lewes, who was driving the tractor, was uninjured.
A motorcyclist who was killed when his bike collided with a tractor and trailer near a roundabout in East Sussex has been named by police.