hi my car has been off the road now for a year
and my ebc drilled and grooved discs are quite rusty ! my rears are too !
but do they still "lip" like standard discs ?? how do u tell wen they need changing ? thanks

 

Yes you will have a lip if there worn out. just rust on the surface is fine and will soon come off once the brakes are applied a few times. Just be carefull when you use it for the first time. brakes will make an awfull noise and not work to well