恭喜版主入手 Ultra Sport III... 我對Ultra sport 1, 2 代使用的經驗是,雖然號稱防刺,但是沒有加入防刺層,容易扎胎,防刺效果不如理想。 後來換了其他品牌防刺胎 這個第3代仍沒有加入防刺層... 附國外測評.... Just like the Ultra Sport II, the Ultra Sport III doesn't have an additional anti-puncture layer under the tread which is something we see more often on cheaper tires. Some of this is made up by the thicker 3/180 casing that offers a bit more protection …. 依靠3/180 TPI 防刺,個人覺得不如直接加一層薄的防刺層