Hi. As I imagine, your request is related to the field of motorcycle building?
The engine of the previous model CBR250RR is a four-cylinder engine, an engine with four carburetors. Adapting it to another frame requires a lot of engineering knowledge and also a high work performance ability.
An engine that I understand may fit the frame of the CBR250R(2011-2013) is the engine of the model that came after it, the CBR300R(One cylinder), where I understand it is the same frame structure, etc. Opinions on replacing a 250cc engine with a 300(286cc) engine:
- problems,
- advantages,
- disadvantages,