Assertion: bicycle's motor | /r/HasProperty | the knucklehead
Facets:
value: particularly
type: OTHER
Source sentences:
text: Harley's then-current big-twin motor, the Shovelhead was extremely popular with chopper builders in this era, and use of the older motors, particularly the Knucklehead and Flathead declined as parts became harder to get and the performance of the new motors proved superior.