小弟也是換FD2~~~原廠胎撐到65000KM~~~FD2~~~靜了些~~~少了操控與抓地力~~原廠胎140-150KM/HR~~瞬間變換車道~~穩穩的~~~FD2...QQ的~~胎璧比較軟~~FD2最高18格~~~還OK~~RE050A最高19格~~其實原廠胎真的不錯~~換胎前想過以後開慢些~~但是~~~以FD2的價位與自己使用至目前~~~還算不錯~~