Typically, motorcycles have a reserve fuel capacity to provide a small amount of fuel as a warning when the main fuel tank is nearly empty. This reserve fuel allows riders to reach the nearest fuel station and avoid running out of fuel completely.
To obtain accurate and up-to-date information regarding the reserve fuel capacity of a particular Suzuki Gixxer model, it is best to consult the official specifications provided by Suzuki or refer to the owner's manual for the specific motorcycle model you are interested in.