If you wish to carry out maintenance on your Derbi Senda Supermotard then it is usually recommended to possess a Workshop Manual for a reference should you want to know how you can remove a certain part for example the Wheel and match it again in the correct manner.
Derbi Senda Supermotard Workshop Manuals provides targeted diagnostic facts on your vehicle so if something is faulty it will help you understand what the issue is and easy methods to fix it. You can then evaluate if this can be done yourself or if ever the job is just too big you can actually make a reservation for your Senda Supermotard in with a local mechanic.
Derbi Senda Supermotard manual