If you wish to do fixes for your Piaggio XEvo 250 then it will always be a good plan to own a Workshop Manual to use as a reference in the event you need to know the best way to take off a certain component like the Wheel and install it again safely.
Piaggio XEvo 250 Workshop Manuals can provide specified diagnostic information on your car so if something is faulty it can help you understand what the situation is and tips on how to resolve it. After that you can decide if this can be done by yourself or if ever the job is simply too big it is possible to book your XEvo 250 into a decent car garage.
Piaggio XEvo 250 manual