網上有關高地 rotor 的 spec，Sienna similar， guess。See below's orig.:

來源: 於 2019-09-16 14:46:43 [舊帖] [給我悄悄話] 本文已被閱讀：次

The standard thickness when new the front rotors are 28mm or 1.102 in. The minimum thickness before or after machining is 25.0mm or .983 in. This means you cannot take off more than about 3mm or .10 in if the rotor started at 28mm or 1.102 in.