At the heart of every great Harley-Davidson motorcycle is the engine -- here we've got 10 of the greatest of all time.
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 ...
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10 V-Twins Known For Legendary Durability
Check out these ten V-twin motorcycles, including a Ducati and a KTM, that are known for thier legendary durability.
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