I'm an older pit bike racer (48) and I currently own two klx110's I'm looking at building a bigger mini...17 inch class. Between the KLX140 or the CRF150F which bike has a better base starting point? I've read a few posts here and it seems like suspension is a fairly easy modification by either adding the cr85 or the kx85 stuff. Seems like the forks are a direct bolt on. Which rear suspension is easier to do on which bike? I've also noticed that there may be more options for the Honda Motor then the Kawasaki motor. Any info you guys have would be great! Thank you!