hey guys. I have a 2004 CRF150F. it has a BBR 175 kit in it and I am wanting more power. I was just thinking of buying the 250cc big bore because the 230f parts bolt on for the 150 and just putting a new crank in it. I am also considering making the bike street legal soon. So to my second option being, buy a 230 motor of somewhere like ebay for 800 dollars and just roll with it? This bike is simply going to be a street enduro trail bike for me. Thanks for your help as always guys.