In the cylinder head of the 450 SMR engine, an overhead camshaft actuates four ultra-light titanium valves via extremely stiff, DLC-coated rocker arms on the intake side. This configuration allows engine speeds of over 11,500 rpm to be achieved and makes a major contribution to the unique performance of the KTM engine. A new, three-layer, cylinder head gasket has been fitted for the 2014 model year, which guarantees even greater durability in the most extreme conditions. Furthermore, the auto-decompression mechanism has been strengthened.
• New, three-layer, cylinder head gasket --> even greater durability in the most extreme conditions
• Revamped auto-decompressor --> greater durability