Hawk HB521Q.800 DTC-80 Racing Disc Brake Pads Wilwood BB SL 7420 0.800 in.

The Hawk Performance HB521Q.800 is a DTC-80 compound racing disc brake pad engineered for the most demanding circle track and road racing applications. With a pad thickness of 0.800 inches, this pad is designed to fit the Wilwood Narrow/Bridge-Bolt Superlite (BB SL) caliper shape 7420, as well as AP Racing CP8250/CP8350, CompBrake Pro Race One, and StopTech ST-43 calipers.

About the DTC-80 Compound:

The DTC-80 is Hawk's highest-performance race compound, built for drivers who push braking systems to the absolute limit. It delivers a flat, consistent coefficient of friction at extreme temperatures — providing the reliability and predictability that competitive racers depend on corner after corner.

Key Features:

• High initial bite — immediate and aggressive response on first pedal application
• Consistent brake torque across the full temperature operating range
• Pressure-consistent performance at temperatures exceeding 1,200°F
• Superior pad and rotor wear characteristics compared to competing race compounds
• Ferro-Carbon construction for durability and heat resistance
• Operating temperature range: 500°F – 1,700°F (optimal: 600°F – 1,500°F)
• Pad thickness: 0.800 in. (20mm)
• Compatible caliper shapes: Wilwood BB SL 7420, AP Racing CP8250/CP8350, CompBrake Pro Race One, StopTech ST-43

Important: Hawk DTC-80 pads are intended for track and race use only. All Hawk Performance compounds are designed for use with iron/metal rotors only — they are not compatible with carbon ceramic rotors.