There’s a difference in torque, though, and you feel the single-cam engine’s pull much lower in the rev range than that of a Twin Cam. By 1,500 rpm your CVO ride surges forward at a rapid rate, and a smile plants itself on your face by 2,000 rpm. Before the analog tachometer’s needle sweeps to 3,000 rpm that smile stretches to a full-on ear-to-ear grin; this liquid-cooled (cylinder heads only) engine pulls strongly, allowing you to cruise at a sedate 60 mph in top gear if you wish. Try that with any Twin Cam variation. Not in the cards.