RB Brake Kit w/Brembo Calipers for BMW F80 M3/M4 under 18" Wheels

[Warren-RB]

I don't think it will fit under OE 18"

[Bee Pee]

Originally Posted by Warren-RB

I don't think it will fit under OE 18"

That's a shame......

[Bee Pee]

Originally Posted by Warren-RB

I don't think it will fit under OE 18"

Does RB still offer the 374/370 rotor c/w oem gold 6/4 pot calipers kit as upgrade for F8x cars for owners wanting to keep 18" wheels ?

If so, being in the UK, I'd be keen on buying rotors and adapter brackets from RB in USA, as I can source oem calipers, pads and hoses easy enough domestically.

[Warren-RB]

The rotor size of this retrofit kit has been changed to 380/380mm since, and quite a few kits were shipped.

The price and contents are also updated to "exclude" the OE calipers so you can purchase them yourself from dealer or aftermarket.

Due to the bulkiness of the front calipers, even if the rotors are smaller (374/370mm) it's still unlikely the kit will fit under 18" wheels; as a standard 18" wheel the rotor size is @355/360mm.

[tdott]

Originally Posted by Warren-RB

Due to the bulkiness of the front calipers, even if the rotors are smaller (374/370mm) it's still unlikely the kit will fit under 18" wheels; as a standard 18" wheel the rotor size is @355/360mm.

Stock m4 brakes fit over 18" OEM f8x wheels and use a 380mm rotor.

Also here is someone that claims they fit a 380mm rotor with M5 calipers.
https://f80.bimmerpost.com/forums/sh...1&postcount=10

[Bee Pee]

Originally Posted by tdott

Stock m4 brakes fit over 18" OEM f8x wheels and use a 380mm rotor.

Also here is someone that claims they fit a 380mm rotor with M5 calipers.
https://f80.bimmerpost.com/forums/sh...1&postcount=10

I had a DM exchange with OzcarM3 and he advised me his front 6pot set up was RB 380mm discs/adapters RB#2474 c/w oem CCB calipers.

Ozcar then chose to change to custom rotors.

My Q to @warren-RB is - does RB kit # 2474 work with all the following oem Brembo 6 pot calipers:-
- F8x CCB gold calipers;
- F87 M2Comp grey calipers;
- F10 M5 blue Brembo calipers.

If so, I might opt for RB # 2474 c/w F10 blue calipers as they have slightly less standoff (5mm shorter mounting point as per extract below) than F8x and F87 6pot brembos to aid caliper to 18" wheel inner clearance....