If you wish to accomplish auto repairs for your Sym Bonus 100 then it will always be a good plan to have access to a Workshop Manual to use as a guide should you want to know the best way to strip off a specific component such as the Brake Discs and match it again adequately.
Sym Bonus 100 Workshop Manuals gives you exact diagnostic info with regards to your car therefore if something is not working it can help you identify what the issue is and methods to fix it. You will be able to analyse if this can be done on your own or that the job is too big you are able to make a booking for your Bonus 100 in with a decent repair garage.
Sym Bonus 100 manual