So l am downsizing from my 2018 yz450f after breaking some more bones on only my second hard crash in the 60 hours I have been riding/racing it.
I transferred the following from my 450 with no modifications: Prototype NEKEN SFS clamps, Protaper XPS levers, Protaper Carmichael bend Fuzion Handlebars, D’Cor grippper seat, Acerbis: upper fork protection, frame guards, Raptor front number plate and side plates. Plus a Protaper aluminum throttle tube with bearing.
I downloaded/copied both TP 250f map and Keefer Aggressive map into my PowerTuner app.