StopTech Sport Slotted Rotor Rear Set - BMW / F3X / 320i / 328d / 330e

Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Here's where StopTech SportStop slotted brake rotors make a big difference. StopTech SportStop Slotted Brake Rotors are a true performance rotor and feature: 

Power Alloy castings (on select applications)

• Engineered Performance Rotor
• Superior resistance to cracking due to thermal stress
• Increased molybdenum (higher carbon)content that extends reliability, service life and helps reduce NVH “noise” issues
• Rotor material is a direct descendant of the patented AeroRotor from StopTech

Introducing directional curve vane design (on select applications)

• Improved vane design or OE equivalent on all rotors
• Center split castings

New short slot design runs perpendicular to the vane to preserve rotor strength.

Direct OE Replacement

Improved wet weather response

Increased initial “bite”

Double disc ground for a consistent friction surface and Improved pad bed-in

Mill balanced

Black E-Coated non-friction surfaces on “Power Alloy” rotors

Enhances open wheel appearance