The Flash Pro full brake pad set consists of the brake pad and pad holder and is for use with Dura Ace, Ultegra, 105, SRAM and TRP braking systems. For use on Aluminium rims only. Sold as one pair of full pads for one brake.BXP: Latest aluminium rim compound. Non sticky predictable linear feel provides improved modulation, power and braking in all conditions.Green GHP II: High performance compound for aluminium rims. Excellent in the dry and unbeatable in the rain. Extremely low pad and rim wear.Original Black: Suitable for less aggressive riding, very good in dry and wet conditions. Specially recommended for rims made of softer alloy material.Supplied as a pair of pads for one complete brake