Performance Machine 4-Piston Springer Brake Caliper Kit for 1988-2012 Harley-Davidson Springer

Performance Machine 4-Piston Springer Brake Caliper Kit for 1988-2012 Harley-Davidson Springer

The Performance Machine 4-Piston Springer Brake Caliper Kit is the ultimate performance upgrade for factory Harley-Davidson Springer front ends. This kit replaces the stock single-piston unit with a high-performance 4-piston differential bore caliper, providing significantly more clamping force and a much-improved lever feel. Designed for a clean, right-side mounting application, this kit ensures your classic Springer front end has the stopping power required for modern riding conditions.

Each caliper is CNC-machined from high-strength billet aluminum to provide maximum rigidity and weight savings. The dual-action design ensures even pad pressure, resulting in consistent braking performance and reduced pad wear. This kit is engineered to fit seamlessly with factory geometry but is versatile enough for custom builds when paired with the proper axle spacers and linkage.

Technical Specifications

• Caliper Type: 4-Piston Dual-Action Differential Bore
• Material: CNC-Machined Billet Aluminum
• Axle Bushing: 1.05 Inch I.D. Bronze Bushing (Fits 1 Inch or 3/4 Inch axles with adapter)
• Rotor Compatibility: Fits 11.5 Inch brake rotors
• Mounting Position: Right Side
• Hardware: Includes mounting bracket, brake pads, and bleeder screw

Key Features

• Massive Power Increase: 4-piston design offers a major upgrade over underpowered OEM single-piston calipers.
• Precision Machined: Billet aluminum construction eliminates housing flex for a firmer lever feel.
• Universal Axle Fitment: The 1.05 inch I.D. bushing allows compatibility with both 1 inch and 3/4 inch axles.
• Show-Quality Finish: Available in high-end finishes to complement any Springer aesthetic.
• Differential Bore Pistons: Optimized piston sizing for progressive braking and even pad wear.
• American Made: Manufactured in the USA by Performance Machine.

Installation and Fitment Notes

This kit is designed as a bolt-on for 1988-1999 and 2000-2012 factory Harley-Davidson Springer front ends. For custom applications, additional axle spacers and brake linkage will be required for proper alignment. When installing on FXSTS models using PM rotors, button-head torx bolts are required for caliper clearance. Ensure the correct adapter is used if mounting on a 3/4 inch axle.