The 4 Hex-screws have green lock-gel appllied on~
I don't equip with this gel so,......
The worn out surface on the disk...less than 4mm, I guess.
Settle down the new one ~ The Heroine of this stage~
I forgot to use the torque wrench as suggestion chart of rear disk...
Setting on the rear wheel~ One by one, and lub all the moving parts ~
the rubber slipper joint had been hurted, should find some new parts for the replacement.
Bleeding the brake fluid....copmpared with the Car's brake system, these disk & cliper are mini size~
brake fluid, kind of yellow and sticky....caused by the moisture.
......to be continued.