T-Rex Racing 2015 KTM RC 390 No Cut Frame Sliders Case Covers Spools - Orange Material = UHMW-PE (ultra high molecular weight polyethylene) and a aircraft grade aluminum 6061-T6 brackets finished in black anodizing for durability. Special feature = The pucks are solid and not hollow, made to withstand a greater impact. Brackets are designed NOT to rotate in a lowside. NO CUT or plastic fairings modification required Fit Models = 2015 KTM RC 390