Hawk ER-1 Endurance Racing Brake Pads — Fits Wilwood Motorsport Calipers

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SKU: HAWKHB521D.800
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About Hawk Performance Hawk Performance pads have powered IMSA, NASCAR, ...Read More

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Sale price$260.09 Regular price$288.99
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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

Unmatched Endurance for Racing Calipers

Experience the pinnacle of racing friction with the Hawk ER-1 Endurance Racing Brake Pads. Specifically formulated for Wilwood motorsport calipers, these pads are built to handle the extreme heat and pressure of endurance racing. If your racing program requires a pad that offers longevity without sacrificing initial bite or modulation, the ER-1 is your ultimate solution for the track.

Designed for Competitive Racing

  • Endurance Formula: Specifically developed for long-distance racing stability.
  • Superior Heat Management: Resists brake fade in high-temperature environments.
  • Consistent Modulation: Provides excellent feedback for precise driver control.
  • Wilwood Compatible: Precision-engineered for seamless fitment in Wilwood motorsport calipers.

The ER-1 compound is designed to provide a flat friction curve, meaning your braking performance remains consistent as temperatures rise and the race progresses. This reliability is crucial for maintaining your pace and ensuring safety during high-speed maneuvers. Unlike standard street pads, the ER-1 is built to withstand the repetitive, high-intensity braking cycles found in endurance racing. By choosing these pads, you are equipping your vehicle with technology that has been tested under the most demanding conditions. The durability of the ER-1 compound also means fewer pad changes during long events, saving you time and resources in the pits. Take your racing performance to the next level with components engineered for victory. Discover the full range of professional racing parts available at 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

Unmatched Endurance for Racing Calipers

Experience the pinnacle of racing friction with the Hawk ER-1 Endurance Racing Brake Pads. Specifically formulated for Wilwood motorsport calipers, these pads are built to handle the extreme heat and pressure of endurance racing. If your racing program requires a pad that offers longevity without sacrificing initial bite or modulation, the ER-1 is your ultimate solution for the track.

Designed for Competitive Racing

  • Endurance Formula: Specifically developed for long-distance racing stability.
  • Superior Heat Management: Resists brake fade in high-temperature environments.
  • Consistent Modulation: Provides excellent feedback for precise driver control.
  • Wilwood Compatible: Precision-engineered for seamless fitment in Wilwood motorsport calipers.

The ER-1 compound is designed to provide a flat friction curve, meaning your braking performance remains consistent as temperatures rise and the race progresses. This reliability is crucial for maintaining your pace and ensuring safety during high-speed maneuvers. Unlike standard street pads, the ER-1 is built to withstand the repetitive, high-intensity braking cycles found in endurance racing. By choosing these pads, you are equipping your vehicle with technology that has been tested under the most demanding conditions. The durability of the ER-1 compound also means fewer pad changes during long events, saving you time and resources in the pits. Take your racing performance to the next level with components engineered for victory. Discover the full range of professional racing parts available at 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

Unmatched Endurance for Racing Calipers

Experience the pinnacle of racing friction with the Hawk ER-1 Endurance Racing Brake Pads. Specifically formulated for Wilwood motorsport calipers, these pads are built to handle the extreme heat and pressure of endurance racing. If your racing program requires a pad that offers longevity without sacrificing initial bite or modulation, the ER-1 is your ultimate solution for the track.

Designed for Competitive Racing

  • Endurance Formula: Specifically developed for long-distance racing stability.
  • Superior Heat Management: Resists brake fade in high-temperature environments.
  • Consistent Modulation: Provides excellent feedback for precise driver control.
  • Wilwood Compatible: Precision-engineered for seamless fitment in Wilwood motorsport calipers.

The ER-1 compound is designed to provide a flat friction curve, meaning your braking performance remains consistent as temperatures rise and the race progresses. This reliability is crucial for maintaining your pace and ensuring safety during high-speed maneuvers. Unlike standard street pads, the ER-1 is built to withstand the repetitive, high-intensity braking cycles found in endurance racing. By choosing these pads, you are equipping your vehicle with technology that has been tested under the most demanding conditions. The durability of the ER-1 compound also means fewer pad changes during long events, saving you time and resources in the pits. Take your racing performance to the next level with components engineered for victory. Discover the full range of professional racing parts available at GGCRACING.

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