Growing up in Baltimore, Maryland and near the US Triumph motorcycle distributor, David's first bike (a 1970 Bonneville) had to be one of these British-built machines. After The Triumph Corporation closed in 1975, he was able to acquire much of their internal documents and memos along with truckloads of brochures, manuals and service bulletins. This vast archive would become the foundation for two books: Triumph Motorcycles in America, coauthored with Lindsay Brooke, and Triumph Motorcycle Restoration Guide. His feature articles have appeared in Vintage Bike and Classic Bike magazines, and he is currently gathering material for an illustrated history of the Wall of Death.