Allyn started writing for TopSpeed in 2015, but has been writing on motorcycle and automotive topics since 2008 for outlets such as eHow, USAToday, and subsidiaries of MotorTrend. Formally trained as ...
Think of a Harley-Davidson powerplant, and chances are that some iteration of the company's big V-twin engines will come to mind. Indeed, given Harley's long association with the format, it's ...