The chassis number is a part of the Vehicle Identification Number (VIN) and is used to identify a bike from the numbers mentioned. The last six characters of a VIN are the bike’s chassis number. The VIN and the chassis number are often used interchangeably. The chassis number can be found near the bike’s handle or motor. If you are finding it difficult to locate your bike’s chassis number, you can seek the help of a mechanic. The bike’s chassis number is often mentioned in the Owner’s Manual and Registration Certificate. Alternatively, you can contact your bike dealer for the same. The chassis number is different from the engine number. If you want to find the engine number and chassis number of a vehicle online, you can check the Vahan website. The bike VIN number or chassis number is often stamped or etched into the bikes frame. You can look for a metal plate or a series of numbers to find the chassis number. Some videos on YouTube also show the location of the chassis number for specific models of scooty, such as Honda Activa.