[Richbot]

So, learnings:

1) aluminum hats and steel hubs do in fact experience galvanic corrosion. I had to do some cleanup after 82000 miles and 10 years of that. It was pretty mild and wire brush able on the hat. The hub would have to be replaced to get it all the way cleared off the hub face, but I was able to get rid of any high spots. I imagine this surface rust on the hub face would be present with the factory rotors too but I’ve never pulled OEM rotors off a high mileage E90M like mine so dunno

2) the stop tech hardware and pin holes and hat all held up great, except there is some pitting here and there from said corrosion. Everything just slid right out, nothing was wallowed out etc. So next time I have the hats off for some reason I’ll probably replace them. In 2050?

D) yes having new pads and new rotors does help with knockback but it’s too early to tell how much because all I’ve done is the bedding run so far