when you stunt on scooter u mainly dont go over 15 20 kmh... so there is no need for some extra tuning... its good to have more HP to make it easyer or to have more powerful burnouts.... but for sensi ...
Just make a longer bolt on the end.That will have two hols and not one like orginal bolt.If you donīt know what i mean...Than PM motospirit and ask him if he can show you pics how he did it on F12