I have a 2007 400ex and im looking to start xc racing. Im racing in the vxcs races this spring and its my first time doing any kind of XC racing. I am looking for any recomendations or routines that anyone has to prepare for a race (bike prep, nutrition, exercise.) My 400 is jetted, i have ordered new tires, it is stock width, uni filter, fmf powercore 4. Any help would be great, thanks.