Officials say 39-year-old Thomas Legg Jr. died after he was flown to R Adams Cowley Shock Trauma Center in Baltimore.
The accident happened on Route 15 near Hayward Rd.
Officials say Legg, who was from Woodsboro, MD, lost control of the bike, slid across both lanes of traffic, then hit a guardrail.
Legg was wearing a helmet, but officials have not said what caused him to lose control of the motorcycle.
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