If you need to carry out adjustments to your Gilera XR1 125 then it will always be a great idea to have a Workshop Manual to use as personal reference if perhaps you need to know the best way to remove a certain component for example Brake Pads and match it again perfectly.
Gilera XR1 125 Workshop Manuals offers clear specific diagnostic guides on your car so if something is broken it will help you find out what the situation is and some ways to fix it. You can then analyse if this can be achieved by yourself or that the job is too big you can make a booking for your XR1 125 right into a trusted friendly mechanic.
Gilera XR1 125 manual