How can I tell if a bike is vintage?

To tell if a bicycle is vintage, first look for a serial number or manufacturer's label. If you locate one or both, use the information as the basis for online research. Also, examine the parts. If you see a friction shifter, your bike was likely made before 1984. Suspension forks usually indicate a manufacturing date of 1990 or later. On 1stDibs, shop a range of antique and vintage bicycles.