Hawk Performance ER-1 Motorsport Brake Pads — Fits Wilwood 7420 Calipers

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SKU: HAWKHB521D.650
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About Hawk Performance Hawk Performance pads have powered IMSA, NASCAR, ...Read More

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Sale price$249.29 Regular price$276.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hawk Performance

Hawk Performance pads have powered IMSA, NASCAR, Trans-Am, and Pirelli World Challenge champions. From the streetable HPS to the trackday DTC race compounds, every Hawk pad is engineered for repeatable bite, stable initial pedal feel, and predictable wear.

Watch in action

Professional-Grade Endurance Braking

When every second counts on the track, you need a braking compound that won't quit. The Hawk Performance ER-1 Motorsport brake pads are engineered for endurance racing, providing consistent, predictable friction levels even under the most extreme thermal conditions. Designed to fit Wilwood 7420 caliper setups, these pads are the choice for racers who demand reliability and performance throughout long-duration events.

Engineered for the Track

  • Endurance Compound: Optimized for long-lasting performance during intense racing.
  • High Thermal Threshold: Maintains bite at high temperatures where other pads fade.
  • Consistent Feel: Predictable modulation allows for precise trail braking.
  • Direct Fit: Specifically shaped for Wilwood 7420 caliper housings.

The ER-1 compound is the result of years of research and development, focusing on the unique demands of endurance motorsports. These pads offer a stable friction profile, ensuring that your brake bias remains consistent from the start of the race to the checkered flag. By reducing pad wear and maintaining structural integrity under high heat, the ER-1 pads minimize downtime and maximize your time on the track. Whether you are competing in club racing or professional endurance series, these pads deliver the confidence you need to brake later and harder into every corner. Upgrade your race car with the best in friction technology and feel the difference in your lap times. Find your competitive edge with premium components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hawk Performance

Hawk Performance pads have powered IMSA, NASCAR, Trans-Am, and Pirelli World Challenge champions. From the streetable HPS to the trackday DTC race compounds, every Hawk pad is engineered for repeatable bite, stable initial pedal feel, and predictable wear.

Watch in action

Professional-Grade Endurance Braking

When every second counts on the track, you need a braking compound that won't quit. The Hawk Performance ER-1 Motorsport brake pads are engineered for endurance racing, providing consistent, predictable friction levels even under the most extreme thermal conditions. Designed to fit Wilwood 7420 caliper setups, these pads are the choice for racers who demand reliability and performance throughout long-duration events.

Engineered for the Track

  • Endurance Compound: Optimized for long-lasting performance during intense racing.
  • High Thermal Threshold: Maintains bite at high temperatures where other pads fade.
  • Consistent Feel: Predictable modulation allows for precise trail braking.
  • Direct Fit: Specifically shaped for Wilwood 7420 caliper housings.

The ER-1 compound is the result of years of research and development, focusing on the unique demands of endurance motorsports. These pads offer a stable friction profile, ensuring that your brake bias remains consistent from the start of the race to the checkered flag. By reducing pad wear and maintaining structural integrity under high heat, the ER-1 pads minimize downtime and maximize your time on the track. Whether you are competing in club racing or professional endurance series, these pads deliver the confidence you need to brake later and harder into every corner. Upgrade your race car with the best in friction technology and feel the difference in your lap times. Find your competitive edge with premium components from GGCRACING.

Product Details

Product Description

About Hawk Performance

Hawk Performance pads have powered IMSA, NASCAR, Trans-Am, and Pirelli World Challenge champions. From the streetable HPS to the trackday DTC race compounds, every Hawk pad is engineered for repeatable bite, stable initial pedal feel, and predictable wear.

Watch in action

Professional-Grade Endurance Braking

When every second counts on the track, you need a braking compound that won't quit. The Hawk Performance ER-1 Motorsport brake pads are engineered for endurance racing, providing consistent, predictable friction levels even under the most extreme thermal conditions. Designed to fit Wilwood 7420 caliper setups, these pads are the choice for racers who demand reliability and performance throughout long-duration events.

Engineered for the Track

  • Endurance Compound: Optimized for long-lasting performance during intense racing.
  • High Thermal Threshold: Maintains bite at high temperatures where other pads fade.
  • Consistent Feel: Predictable modulation allows for precise trail braking.
  • Direct Fit: Specifically shaped for Wilwood 7420 caliper housings.

The ER-1 compound is the result of years of research and development, focusing on the unique demands of endurance motorsports. These pads offer a stable friction profile, ensuring that your brake bias remains consistent from the start of the race to the checkered flag. By reducing pad wear and maintaining structural integrity under high heat, the ER-1 pads minimize downtime and maximize your time on the track. Whether you are competing in club racing or professional endurance series, these pads deliver the confidence you need to brake later and harder into every corner. Upgrade your race car with the best in friction technology and feel the difference in your lap times. Find your competitive edge with premium components from GGCRACING.

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