I am new here need some help on buying my first bike CBR250RR. Here are some questions I have for buying a bike: - What's the difference between CBR250RR, CBR250R and CBR250? - MC14/17/19/22, what does it mean and how to check it? - What will be a good mileage and price for a 2nd-hand CBR250RR? - I like the Repsol paint job. Is it worthy to pay extra for it? - Should I buy it from a dealer for private sale? - Some other websites to let me get some more info about buying a bike? Cheers.