Wilwood GP310 Black Rear Caliper — Fits Harley-Davidson 1984-Present

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SKU: WIL120-7740-BK
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Sale price$247.99 Regular price$361.40
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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 Wilwood

Wilwood Engineering has been the American leader in aftermarket racing brakes since 1977. Forged aluminum calipers, two-piece slotted rotors, and master cylinders engineered for NASCAR, IndyCar, sprint cars, and street-legal big brake kits.

Watch in action

Wilwood GP310 Black Rear Caliper for Harley-Davidson (1984-Present)

Ensure consistent and powerful braking performance for your Harley-Davidson with the Wilwood GP310 Black Rear Caliper. Designed for a wide range of models from 1984 to the present, this caliper offers a significant upgrade in stopping capability and features a durable, stylish black finish.

Key Features:

  • High-Performance 4-Piston Design: Provides increased braking leverage and superior stopping power for the rear wheel.
  • Robust Billet Aluminum Construction: Machined from high-grade billet aluminum for maximum strength, rigidity, and excellent heat dissipation.
  • Aggressive Black Finish: Offers a sleek, performance-oriented look that integrates seamlessly with your motorcycle's aesthetics.
  • Standard 3.50" Mount Spacing: Features bracket-mounted design with a common 3.50-inch spacing for broad compatibility.
  • Optimized for .25" Disc Thickness: Engineered to work effectively with 0.25-inch brake discs.
  • 1.25" Piston Diameter: Delivers precise hydraulic response for confident braking control.

The Wilwood GP310 Rear Caliper is built to provide reliable performance and longevity, even under demanding riding conditions. Its advanced design ensures optimal brake pad engagement and consistent stopping power. Upgrade your rear braking system with this exceptional caliper and experience the difference GGCRACING parts can make.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wilwood

Wilwood Engineering has been the American leader in aftermarket racing brakes since 1977. Forged aluminum calipers, two-piece slotted rotors, and master cylinders engineered for NASCAR, IndyCar, sprint cars, and street-legal big brake kits.

Watch in action

Wilwood GP310 Black Rear Caliper for Harley-Davidson (1984-Present)

Ensure consistent and powerful braking performance for your Harley-Davidson with the Wilwood GP310 Black Rear Caliper. Designed for a wide range of models from 1984 to the present, this caliper offers a significant upgrade in stopping capability and features a durable, stylish black finish.

Key Features:

  • High-Performance 4-Piston Design: Provides increased braking leverage and superior stopping power for the rear wheel.
  • Robust Billet Aluminum Construction: Machined from high-grade billet aluminum for maximum strength, rigidity, and excellent heat dissipation.
  • Aggressive Black Finish: Offers a sleek, performance-oriented look that integrates seamlessly with your motorcycle's aesthetics.
  • Standard 3.50" Mount Spacing: Features bracket-mounted design with a common 3.50-inch spacing for broad compatibility.
  • Optimized for .25" Disc Thickness: Engineered to work effectively with 0.25-inch brake discs.
  • 1.25" Piston Diameter: Delivers precise hydraulic response for confident braking control.

The Wilwood GP310 Rear Caliper is built to provide reliable performance and longevity, even under demanding riding conditions. Its advanced design ensures optimal brake pad engagement and consistent stopping power. Upgrade your rear braking system with this exceptional caliper and experience the difference GGCRACING parts can make.

Product Details

Product Description

About Wilwood

Wilwood Engineering has been the American leader in aftermarket racing brakes since 1977. Forged aluminum calipers, two-piece slotted rotors, and master cylinders engineered for NASCAR, IndyCar, sprint cars, and street-legal big brake kits.

Watch in action

Wilwood GP310 Black Rear Caliper for Harley-Davidson (1984-Present)

Ensure consistent and powerful braking performance for your Harley-Davidson with the Wilwood GP310 Black Rear Caliper. Designed for a wide range of models from 1984 to the present, this caliper offers a significant upgrade in stopping capability and features a durable, stylish black finish.

Key Features:

  • High-Performance 4-Piston Design: Provides increased braking leverage and superior stopping power for the rear wheel.
  • Robust Billet Aluminum Construction: Machined from high-grade billet aluminum for maximum strength, rigidity, and excellent heat dissipation.
  • Aggressive Black Finish: Offers a sleek, performance-oriented look that integrates seamlessly with your motorcycle's aesthetics.
  • Standard 3.50" Mount Spacing: Features bracket-mounted design with a common 3.50-inch spacing for broad compatibility.
  • Optimized for .25" Disc Thickness: Engineered to work effectively with 0.25-inch brake discs.
  • 1.25" Piston Diameter: Delivers precise hydraulic response for confident braking control.

The Wilwood GP310 Rear Caliper is built to provide reliable performance and longevity, even under demanding riding conditions. Its advanced design ensures optimal brake pad engagement and consistent stopping power. Upgrade your rear braking system with this exceptional caliper and experience the difference GGCRACING parts can make.

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