Brake discs Zimmermann or R1 Concepts

I bought R1 Concepts vented and slotted rotors and EBC Yellow stuff brake pads. This is on my 2021 AWD Turbo. I still got more break in to do, but the difference is huge and immediately noticeable.

I just replaced all 4 rotors and pads last weekend. Found a good deal on Zimmerman rotors and TRW pads. My little diesel wagon is happy now. :)

i have zimmermann rotors on the rear and they look like new after one year and no rust unlike others in bought before and since then. Will buy them again. Zimmermann is good quality.

I’ve used Zimmerman for years, including beating them to crap at the track. Never any issues.

I replaced my OEM BMW blank rotors that were done and warped for the blank Zimmermann ones a week ago, but I got them from FCP euro which they had them at a lower price. I have a slow grocery getter 328i so no need to get anything more. I also used Akebono ceramic brake pads.

Zimmerman rotors with ferrodo ds2500's work for me. Also removed the dust shield and added rs3 ducts. Lately been getting about 2 weekends or ~16 sessions before they get low, but they're solid and wear predictably. Plus fcpeuro sells them.

What I've discovered is that the design of the OEM rotors are BMW 2-piece brake rotors with iron friction ring with a lightweight aluminum rotor hat. This design , to me, has flaws and is prone to excessive heat and warps rather quickly. I've had the same problem repeatedly. I switched to Zimmerman one-piece cast iron rotors with OEM pads, and I've driven very hard, and it hasn't happened ever again.

I went with Zimmermann discs for their cost and have had no issues with them.

When I did my rear brake rotors I did zimmerman but I wish I did the meyle ones that don't rust. The "hub" part in the rear is covered in surface rust.

I have those Zimmermann rotors for my car, and they DO judder. Granted the pads are not OEM...a low dust StopTech option. I've just accepted this...it's a winter car now.