About to do a front brake job, but I'm not sure I should use the rotors I purchased. They're no-name locally acquired items, and one thing about them bothers me.

If you place the rotor with the outside surface face up, and follow the disc surface from the outside diameter, towards the inside, on my old rotor the braking surface drops off by about 1/4" just before you reach the raised center hub section. I think this is important, as when the surface wears, there will be no lip that will cause the brake pad to ride funny.

On the new rotor, as you follow the disc surface from the outside diameter to the inside, it's machined to near the raised hub section, but instead of it dropping down just before the centre hub, it actually raises up by about 1/4". I'm concerned that the brake pad will be affected by this raised ridge - particularly when it gets worn down somewhat, at which point, the plate on the brake pad may hit the raised ridge, even thought there is still lots of usable brake pad left.

Am I just being too fussy here, or should I return these and get ones like my currently installed units? I would buy Brembos or the like from fcpgroton, but with heavy rotors, I'm thinking that the shipping will be excessive.

--
David Armstrong - '86 240(350k km?), '93 940T(270k km), '89 240(parts source for others) near Toronto