These Ferodo DS Performance pads are a replacement pad set specifically for the Revo by Alcon Mono 4 Calipers, that offers a consistent pedal feel and fantastic braking performance across a wide temperature range, low wheel dusting, minimal noise characteristics, and low disc and pad wear rates, make these pads ideal for general road and track driving.Longer pad lifeKinder to discsExcellent modulation for great feel and braking confidenceConsistent, predictable brakingFerodo DS Performance pads are high-performance tuning pads for the road.DS Performance pads are a track day pad which brings racing technology to the road. They have a thermal underlayer between the friction material and the backing plate, this helps to dissipate heat under high-speed braking, this helps to avoid problems which often occur such as brake fade, overheating or caliper damage.This is a set of four brake pads.