求翻译：Today Hi-Spec engineer contacted me to confirm it is ok to proceed as per suggestion 2. Hi-Spec did say that the tyres appear to be 25mm closer to the machine on each side, however I am not sure why this is the case as the track width is only 25mm less than what Hi-Spec currently use. This additional 12.5mm on each sid是什么意思？

待解决 悬赏分：1 - 离问题结束还有