The flat, circular plate that provides your BMW Z4’s disc brake’s friction surface is called the brake rotor. Your brake pads are squeezed against both sides of the rotor by hydraulic pressure applied to the calipers when you step on the brake pedal. This action dissipates the heat generated when you brake by a couple hundred degrees, and keeps you from dealing with a potentially hazardous condition – overheated brakes.

Although some manufacturers say their brake rotors don’t require resurfacing when you change the brake pads, if they are too worn, cracked or seriously warped, you need to replace them at the same time. (Have pedal pulsation in your brakes? That’s a sign that they are badly warped and need to go.) Whether you want the standard stock brake rotors or would like to upgrade to a performance brake rotor for your BMW Z4 because of the stress of stop and go city driving, we have them on hand.

Brake rotors are never a “special order” with us, unlike your local auto parts store or dealership. Our online catalog is available to you 24-7, even on weekends and holidays, and all of the brake rotors you see are ready to ship to you with the click of a mouse. The rotors we offer for your BMW Z4 match the car’s original rotor dimensions and are guaranteed to work with the hubs, brake calipers, and road wheels. They might even make your Z4 look sharper! Better performance and better appearance? What’s not to love? Check out our selection and find the brake rotor you need at a terrific price.