One goal of the slight beveling is to reduce the likelihood (or maybe delay) the formation of cracks that emanate from the drilled holes. It is surprising that the OEM rotors didn't have this feature.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
|