SYM have don't just equipped massive disc brakes front and rear, but additionally twin channel Bosch ABS brakes. 同時引擎性能提升，158cc排氣量的引擎內部優化，提供更強動力。儀表系統更新，多色液晶提升操控體驗。 Your browser isn’t supported anymore. Update it to find the best YouTube experience and our newest features. Find out more 這次新設計的龍脊儀表非常熱血，實際騎乘的時候看著轉速表... https://www.youtube.com/watch?v=QebcS1yhooc