The Honda VT series comprises motorbikes with two-cylinder V engines.
More sporting V engined bikes are given "VTR" model numbers.
Four-cylinder V-engined Hondas are designated VF or VFRs, while Honda motorbikes with inline engines mostly belong to the CB and CBR series.
Just because an engine is listed within a series or sub-series doesn't mean it is directly related to another within the same category.
Honda's 90-Degree VT Series Honda's 52-Degree VT Series Honda's 45-Degree VT Series