Hi, Recently got a 07 kx250. Has PC works pipe and stock silencer. Revalved suspension. I race sand mx tracks mainly. The bike has fresh top end. It revs well,,but It is soft off bottom. I was thinking of a rad valve or v-force? What mods have you done? I read a PC dog bone linkage(3mm longer) helps.
I'm not looking for a trail bike powerband,, but a stronger mid-range before the top rush would be nice.
Thanks for any suggestions and any articles(I have MXA).
Brian