StopTech 121.40099 Sport Blank Disc Brake Rotor

The StopTech 121.40099 is a Sport Blank disc brake rotor engineered for consistent stopping performance and long service life. Manufactured by StopTech — a leader in high-performance braking systems — this rotor is a direct-fit replacement designed to meet or exceed OEM specifications while delivering improved thermal stability and fade resistance.

StopTech Sport Blank rotors are cast from high-carbon grey iron, a premium alloy that dissipates heat more efficiently than standard cast iron. This results in a more stable friction interface, reduced brake fade under repeated hard stops, and quieter, smoother pedal feel compared to economy replacement rotors.

Key Features:

• High-carbon grey iron construction for superior heat dissipation and reduced thermal cracking
• Direct OEM replacement fit — no modifications required for installation
• Precision machined to tight tolerances for runout-free, vibration-free braking
• Protective coating on non-friction surfaces to resist corrosion during storage and initial use
• Balanced and tested to minimize noise, vibration, and harshness (NVH)
• Compatible with OEM and performance aftermarket brake pads

The StopTech 121.40099 rotor is an excellent choice for drivers seeking a reliable, high-quality brake rotor upgrade that installs easily and performs consistently mile after mile.