How do I check a motorcycle's VIN?

Updated October 2026 · How we answer

Short answerThe VIN is a 17-character code, usually found on the frame near the steering head, on a plate or stamped into the metal. Match it to the title and registration to confirm the bike's identity.

Where to find it

On many motorcycles, the VIN is stamped on the frame near the steering head. Other bikes show it on a metal plate on the frame or under the seat. Check the paperwork as well, since the VIN should appear on the title, registration and sometimes the insurance card.

Look for signs of tampering, such as scratches around the number, a mismatched plate or a number that looks newly applied. These can signal a stolen or altered bike.

  • Usually stamped near the steering head
  • Sometimes on a plate under the seat
  • Must match the title and registration
  • Watch for scratches or replaced plates

Running a history check

A vehicle history report can show past titles, accidents and theft records tied to the VIN. Not every bike has a full history, especially older ones, so combine the report with a physical inspection.

If anything does not match, stop the purchase and ask the seller to explain. Your local motor vehicle office can help you confirm the bike's legal status. Check that the VIN on the bike matches the one in the paperwork before you pay, and take a photo of the number for your records.

Common mistakes

  • Trusting a VIN photo instead of checking the physical number on the bike.
  • Skipping the history check on a bike with a missing title.
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