Brake caliper size chart. A 28mm piston is hard to distinguish visually from a 30mm piston. Apr 27, 2025 ยท Use this sizing chart as a guide to help you choose the right brake caliper size for your vehicle. A brake caliper is a crucial component of your braking system, responsible for clamping the brake pads onto the rotor, generating friction that slows your vehicle. 5): 38mm in diameter; 27. Pedal Ratio, Bore Size (Fluid Volume Availability), and Brake Pressure (derived from pedal ratio, master cylinder size, and input force from the driver). View the conversion chart to figure the total bore area for your brake setup. Get precise information to ensure a secure and efficient fitment process. Browse through the pdf data-sheets to read detailed instructions on installing and maintaining brake kits, rotors, calipers and all of Wilwoods products. The best way to determine the exact size is to consult the vehicle’s owner manual or a professional mechanic. Pick up in store or have it delivered to your door. erp dixk7 c7rk 7o8ka7a swjvt btk eoyxy aspjpu0a ppkye v0lqpy