135i Zimmermann Drilled and Slotted Rotors (Front)

These rotors are intended to be used with BMW Performance's 6 piston caliper, 34116786741 or 34116786742. These are designed as a replacement piece for cars with the appropriate upgraded brakes or for someone who is looking to upgrade their brakes to the 6 piston setup. We recommend replacing rotors in pairs for best performance. 

These rotors are a direct swap out for the existing OEM front rotors on all 135I M-sport chassis.

Commonly referred to as a Brake Disc or a Brake Rotor, these components play a vital role in your braking system. When applying the brake pedal, this produces hydraulic fluid pressure which then transfers the pressure from the pedal through your braking system and into your brake calipers. The caliper pistons then apply pressure against your brake pads squeezing them inward against your brake rotors ultimately causing friction and stopping the vehicle. Brake rotors are a regular maintenance item which requires either servicing by means of machine work, or most commonly replacement when they become too thin, pulsate, glaze, or grind from worn-out brake pads. It's recommended to replace the brake pads and rotors at the same time.

Position: Front

2x Rotors come in this set.