When must motorcycles be submitted for official inspection (Hauptuntersuchung)?

In Germany, motorcycles must undergo the Hauptuntersuchung (official inspection) every two years after the initial inspection following first registration. This rule ensures that motorcycles remain roadworthy and meet safety standards. Unlike cars, which also follow this two-year inspection cycle after the first inspection, motorcycles are not required to be inspected every year. The inspections check brakes, lights, tires, and other important safety components to help prevent accidents caused by vehicle defects. Re-registration alone does not trigger an inspection; the two-year interval is the key requirement.