If you wish to carry out maintenance for your Polini Minicross X3 R then it is usually a good plan to have a Workshop Manual to keep just for personal reference if perhaps you want to know proven methods to take out a particular component for example the Gearbox and fit it again accordingly.
Polini Minicross X3 R Workshop Manuals will provide you with distinct diagnostic wisdom for your car or truck therefore if something is faulty it can help you discover what the issue is and how you can resolve it. You can then decide if you can do this by yourself or in case the job is just too big you can still make a reservation for your Minicross X3 R right into a decent mechanic.
Polini Minicross X3 R manual