If you want to execute fixes to your Cagiva River 600 then it is usually a great idea to own a Workshop Manual to use as reference if you need to know the best ways to strip off a certain part like the Wheel and install it again in the correct manner.
Cagiva River 600 Workshop Manuals provide you with targeted diagnostic guidelines with regards to your vehicle therefore if something is broken it helps you discover what the situation is and some ways to fix it. After that you can decide if this can be done yourself or in case the job is just too big you could make a reservation for your River 600 in with a nearby garage.
Cagiva River 600 manual