Of course the cheaper CTP green-insurance-slip is all about motorcycles fitted with engine capacities under 226cc.
but a vehicle is not identified by the serial number of just one of its major components IE; an Engine previously related to another vehicles chassis identity.
Purchase of CTP is supplied and sold on relation to the Vechicles Identification Number,
A part of Vin number design is to explain a direct reference to the record of original factory fitment, including the engine, but still the identity is primarily an expansion of the chassis number, not engine number.
Maybe it is possible to have earn some sort of exemption through certifications or whatever etc etc, and spend the rest of my life explaining to everyone, coppers included, why the VIN plate says XR250,,, fukthat, let me know how it goes.
I just need the correct model frame to go with my correct model XR200 RE engine. The easy and logical path, even if patience is required. I have actually found one, but a cheaper one would be an even better outcome.