I just picked up a '10 YZ450F with only 4.3 hrs for a great price. I will be using this bike for Old Timer racing on mostly hard pack tracks. What have been peoples favorite mods on the '10 and up 450F's? Any special tricks for hard pack with this bike. G2 throttle, Rekluse, flywheel weight etc. I did come with the GYTR tuner and swapping out the front Dunlop will be priority.