I built a yamaha blaster with a built 91 kx 250 motor it has a ton of mods done to it like bored .80 over with a stroker kit boyseen rad valve carbon fiber reeds pro circut pipe fmf silencer stage 2 jett kit barnett racing clutches the heads been shaved and ported its a fun atv to play around on its real fast and quick i planning on building me a atv with a crf 450 motor on it What do you think?

 

i'm surprised the blaster chasis hold up to that power....what kind of bike do you plan on using with the crf450??