How do you derestrict a ktm 125 exc?

To derestrict a KTM 125 EXC, you typically need to remove or modify the restrictor in the exhaust system and adjust the power valve settings. Additionally, some models may have restrictions in the ECU that can be reprogrammed or removed. Always consult your owner’s manual and consider local regulations regarding modifications, as derestricting may impact legality and warranty. It's advisable to seek assistance from a professional mechanic for optimal performance and safety.