Compatible with - Shimano® Deore M555, M555-M Fits Avid Elixir CR, Elixir R Excellent dry condition stopping power The Comp compound is ideal for race-day conditions A thin layer of Jagwire's proprietary Red zone heat shield creates a barrier between the compound and the backing plate 23.5 grams per pair Series Compatible Models Deore M555 M555-M Nexave C901