#FOUR
Honda Files Trademark for CBR400R Four
The original CBR400 models (and the first Honda CBRs, for that matter) were first introduced in 1983, with an air-cooled Inline-Four and a rotational-speed valve stop mechanism “REV” that was a predecessor to Honda’s VTEC system. The CBR400F pictured above was one of the earliest examples, but it evolved into variants like the CBR400RR showcased in the video below.
