Performance Machine 4-Piston Differential-Bore Front Caliper – 2000-2017 Harley-Davidson
Upgrade your stopping power and style with the legendary Performance Machine 4-Piston Differential-Bore Caliper. Designed for riders who demand superior performance without sacrificing aesthetics, this caliper is a direct bolt-on replacement for select 2000-2017 Harley-Davidson models.
This caliper features a precision 4-Piston Differential Bore design that eliminates uneven pad wear. It is designed for 11.5-inch disc rotors and is available in Polished, Chrome, Contrast Cut, and Black Ops finishes. Sold individually (choose Left or Right side to match your setup). Made in the USA.
Why Differential Bore?
Standard calipers often apply equal pressure to both ends of the brake pad, causing the leading edge to bite harder and wear faster. Performance Machine’s Differential Bore technology uses smaller pistons at the leading edge and larger pistons at the trailing edge. This applies different force ratios across the pad, ensuring even pad wear, superior lever feel, and quieter operation.
Premium Finishes
- Polished (P): Buffed to a mirror-like shine for a classic raw aluminum look.
- Chrome (CH): Show-quality triple-plated chrome for maximum durability and shine.
- Contrast Cut (BM): Starts with a polished caliper that is black anodized for a deep, glossy finish, then precision-machined to expose raw aluminum highlights.
- Black Ops (SMB): A proprietary two-tone finish featuring gloss black over a contrasting textured black base for a rugged, matte-like stealth look.
Fitment Notes
- Designed for use with 11.5 inch rotors. Compatible with ABS systems on supported models.
- For dual-disc applications, you must purchase both a Left and Right caliper.
