If you wish to undertake auto repairs on your Rieju RS1 Castrol then it is usually a great idea to own a Workshop Manual to use as a reference just in case you want to know the way to take off a specific component such as the Clutch and fit it again effectively.
Rieju RS1 Castrol Workshop Manuals are able to offer precise diagnostic guidelines for the car therefore if something is not working it helps you work out what the situation is and some ways to resolve it. You can then determine if you can do this on your own or if ever the job is simply too big you can actually book your RS1 Castrol right into a trusted repair garage.
Rieju RS1 Castrol manual