If you want to accomplish adjustments for your Aprilia Classic 125 then it is always recommended to possess a Workshop Manual for personal reference if perhaps you want to know the right way to take off a specific part including Exhaust and install it again in the right way.
Aprilia Classic 125 Workshop Manuals can offer you precise diagnostic guides for your car or truck so if something is faulty it helps you understand what the situation is and easy methods to correct it. You can then analyse if this can be done by yourself or if the job is just too big it is possible to make a booking for your Classic 125 right into a nearby mechanic.
Aprilia Classic 125 manual