As far as i know 06 come with 24.5mm offset and was changed for 09 to23.5mm offset the hot set up is 22mm ,it still gives a stable feeling ,if you ride mostly tight stuff there a mob that does a 21.5 offset,mxa tested the 21.5 mm recently .Both options are better than stock,i dont know why kawi does not use 22mm on the latest model ,everone i know that has used these combinations love em.