Assertion: cc engine | /r/HasProperty | configured like straight six
Facets:
value: with one of the middle cylinders
type: OTHER
Source sentences:
text: Honda's RC149 GP motorcycle of 1966 used a 125 cc straight 5 engine which was configured like a straight six with one of the middle cylinders missing; this eliminated any rocking couple (and reduced crank torsion due to piston inertia, ideal at the high engine speeds it would be run at) whilst leaving free forces equivalent to a 25 cc single cylinder of similar construction.