If you wish to carry out maintenance to your Vento V Thunder XL then it is usually recommended to have access to a Workshop Manual for reference in the event you need to know easy methods to remove a specific component for example the Brake Discs and fit it again efficiently.
Vento V Thunder XL Workshop Manuals provide you with identifiable diagnostic info for the car so if something is not working it helps you ascertain what the issue is and some ways to correct it. You will be able to analyse if this can be achieved on your own or in case the job is simply too big it is possible to make a booking for your V Thunder XL in to a decent garage.
Vento V Thunder XL manual