2013 KTM 450 SX-F Factory Edition

2013 KTM 450 SX-F Factory Edition

• POWER FOR ALL

Last years Factory Edition resulted in a history-making moment for KTM Motorsports after Red Bull KTM Factory Team athlete Ryan Dungey won the first premier class championship aboard the company's most noteworthy motocross machine, the 450 SX-F Factory Edition.

Dungey returns on a mission to pursue the 2013 Supercross class title as well as defend the #1 plate in the outdoor series. His bike of choice will be the new 2013 450 SX-F Factory Edition, that has been further refined and is 1.5lbs lighter and is equipped with all the key components for a Ready to Race machine including an Akrapovic titanium racing silencer. A collaboration between the Austrian and North American based Research and Development teams has helped launch the new 2013 450 SX-F Factory Edition as the leader in its class.

• PROFESSIONAL PERFORMANCE POTENTIAL

The 2013 450 SX-F Factory Edition engine cases and clutch cover have been redesigned to minimize weight by removing the kickstarter boss to save over 0.5lb and further reinforce the effectiveness of KTMs electric start system for racing. The 449.3cc SOHC SX-F engines EMS is updated and now provides 2 additional map settings plus the standard setting for another major benefit: more power. If you combine weight savings and the compact design with the unbelievable 60 hp, you end up with unparalleled power development and handling previously unheard of in the 450 class.

This is precision engineering: a cylinder head designed for optimal motocross characteristics with a very broad rev range. In this extremely compact and lightweight construction, only one camshaft specially designed for the KTM SX-F actuates four titanium valves via weight-reduced rocker arms (DLC-coated on the intake side). Together with ultra-light valve springs and spring retainers, an engine speed of up to 11,500 1/min can be achieved for maximum power.

The crankshaft on the KTM 450 SX-F Factory Edition with a 63.4 mm stroke is equipped for 2013 with a revolutionary plain bearing. This means that the conventional needle bearing is replaced by 2 press-fit bearing shells in the ultra-light Pankl connecting rod, which run directly on the crankshaft's additionally reinforced crank pin. The sliding bearing is supplied with oil directly from the pressurized oil circuit via the crankshaft. In other words: No problem when it comes to rev limits, and the need for servicing the crankshaft is halved. And, because the reciprocating mass has been reduced, traction is improved and the engine still maintains a lightweight feel

• CLUTCH NOW EVEN MORE RESILIENT

The DDS clutch (Damped Diaphragm Steel) with a wear-free steel basket is fitted to the KTM SX-F engine, allowing use of thin steel discs for minimum overall width. The new 280Nm diaphragm spring, which preloads the package, not only reduces the operating force required to pull the clutch, but also provides space for integrated hub damping. The result: more traction and protection for the transmission. And with hydraulic clutch actuation from Brembo, the rider has everything under control right from the start.

• WITH ELECTRIC STARTER

Every millisecond counts when starting. That's why the KTM 450 SX-F Factory Edition can be started simply at the press of a button. This is an invaluable benefit especially when restarting after a crash.