I have a cnen China scooter. ( 125 Kubik) This has 6 kw, ie 8 ps. Allowed are 11 kw at 125 ccm scooter and max 110 km/h. How could you tune the scooter? It’s about theory, is not worth it and I don’t have a lot of idea. Installing a 172 ccm malossi is illegal, because over 125 ccm. Therefore my question how to get legal 11 kw? There are indeed scooters with 11 kw which go much better. Enough it another cylinder ? install and remove the carburettor. immen , or do you need everything new ? Why are there so big differences in performance ? Since I ask for advice . As said it is about theory , because I can classify the connection bad . A breath you have to let the tüv lose and register with the insurance . Do I also see this right ? Please no comments , buy a faster , that’s not the question here .