Never seeen it befpore
The old discs where well ready i reckon a good 1/8" was gone they where mentioned in last mot so planned to do them at this time but the wear on th eold discs was not far off these grooves in the new disc but i to have not seen it before and found it odd especially as just seems to be machined out on one of the discs and not both of them.
EDIT
Strange the disc wear indicator is only machined on one disc i will have to recheck that next time the wheels come off.
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ZT-T Mk2 Jobs to do:
Renew auxiliary drive belt # Replace driver door lock actuator # Refurbish wheels
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