The Hornet Wave keeps you out there at your best. Designed for performance.Using Lightweight induction hardened stainless steel the Hornet Wave discs offers superior strength and durability while using MTX’s innovative technology to keep you in control under high stress braking. Constructed using one complete segment of SUS 420 stainless steel then heat-treated to HRC 36+-2. MTX’s Wave technology ensures your discs stay cool through high strain environments.All MTX discs are designed and manufactured with world-leading cutting edge technologies:Precision CNC machined and laser-cut technologyJapanese SUS 420 Stainless SteelReplacement for Original EquipmentHigh Tech Wave perforated designOptimum heat dissipationSpecifications:O.D: 252mmI.D: 109mmMinimum Thickness: 2.5mmRotor Position: Front Fits: Kawasaki KLX450R 2008-2022 KX125 2006-2008 KX250 2006-2008 KX250F 2006-2013 KX450F 2006-2013