Authorities say 42-year-old Sokhan Mao was traveling east on Route 9 in the town of Marlboro Sunday evening when he lost control of his motorcycle.
Mao, of Amherst, Mass., man was thrown from his bike.
He was taken to Brattleboro Memorial Hospital and then flown to Dartmouth Hitchcock Medical Center. He suffered a broken leg and arm.
State Police say Mao was wearing a helmet at the time.
The crash remains under investigation.