These Red Label RACE Ceramic is the flagship brake pad in MTX MTX Braking's lineup. Made with proprietary blends of Kevlar®, MTX CeraEvo® ceramic materials and other Japan-sourced additives and modifiers, they are bringing the performance benefit of ceramic to the cycling industry. Power: The dense MTX CeraEvo® ceramic material provides the ultimate interface for your rotor Modulation: Control your corners with the ability to temper exactly the braking power needed Silence: Red Label RACE Ceramic produces next-to-zero noise output under any condition This model fits the following:2-piece 2-piston caliperLevel,Level T, TL, TLM, Ult,Level Stealth 2-piston,Red,Force,Rival AXSSRAM Level (not Level Ultimate or Level TLM – those are either RL170)Avid Elixir 3, 5, R, CR, CR Mag, X7, X9, X0, XX