Production chronology1903–1904
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗2 years
← Caloric
Caloric / Model record
Caloric4½ HP Runabout
Production1903–1904
Recorded originUnited States
ClassOpen runabout
Power4.5 hp
Lower-powered of two Caloric runabouts built by the former Chicago Motocycle Company. The unusual engine required its cylinder head to be preheated with a blowtorch before starting. Accessible summaries preserve the 66-inch/1,680 mm wheelbase but not dimensions, weight, price, transmission or annual changes.
Chronology ledger
Dates with their meaning intact
Record depth — Documented
How this is measured → This record contains useful sourced evidence, but it does not yet meet the reference-ready standard. Still needed: attributed imagery. Fields we cannot source stay empty rather than guessed.
Research notes
No dependable model or marque production total survives.