If you choose to undertake repairs on your own Beta Ark 50 RR then it is usually a good plan to possess a Workshop Manual for reference in case you need to know tips to remove a certain component like the Wheel Bearing and install it again in the correct way.
Beta Ark 50 RR Workshop Manuals gives you targeted diagnostic information for your vehicle so if something is playing up it helps you figure out what the issue is and methods to fix it. After that you can analyse if you can do this by yourself or in the event the job is too big you could make a booking for your Ark 50 RR into a decent mechanic.
Beta Ark 50 RR manual