Motorcycle specifications KTM450 EXC Six Days 2012 A champion on the attack

the 450 EXC "ready to race" for the world's biggest enduro championship, the famous "International Six Days Enduro". Six days in a row, over a thousand kilometers of terrain, 40 hours in the saddle: it's not just the rider who's put to the test. The 450 EXC can be prepared with a whole range of top-of-the-range accessories for this exceptionally tough race, at the start of which, every year, half the riders bet on KTM. The 450 EXC Six Days: the only genuine KTM factory orange frame.

new engine

In developing the new engine for the 450 EXC, KTM engineers have created a new dimension: the engine has been completely redesigned and is now even more compact, lighter and more powerful than ever. Reduced moving masses and a balancing shaft limit vibrations

new electronic fuel injection / new electronic engine management

The new Keihin Engine Management System with electronic fuel injection ensures spontaneous engine response. An optional "Map Select" selector allows different engine characteristics to be activated.

new oil circuit

The new 450 EXC engine features a common oil circuit for the engine and gearbox, with two oil pumps. A pressure pump lubricates the engine, while a vacuum pump draws oil from the crankcase to lubricate the gearbox and clutch. A steel diaphragm creates a vacuum in the crankcase, providing additional engine power.

new balance shaft

The new balance shaft on the 450 EXC not only eliminates vibrations, but also drives the water pump. This intelligent concentration of tasks contributes to the compactness and reduced weight of the new 450 EXC engine.

new crankcase

The 450 EXC's new crankcase weighs almost 2 kg (4 lb.) less than its predecessor, and is at the same time more resistant to stones and falls. This has been achieved through the use of a high-strength, elastic aluminum alloy, and by switching from sand casting to die-casting.

new crankshaft

In developing the new crankshaft for the 450 EXC, KTM engineers paid particular attention to reducing moving mass. Thanks to the new, lighter connecting rod and piston, they were able to achieve minimal vibration and maximum resistance at high revs.

new cylinder and piston

The 450 EXC's cylinder has been re-sized specifically for the new engine configuration. The new cast-iron piston, 15% lighter, reduces moving mass and optimizes high-speed stability. New nitrided rings ensure the highest wear resistance.

new cylinder head

The OHC cylinder head of the new 450 EXC engine has been completely redesigned: all ducts and combustion chamber are new. The new camshaft drives four valves via lightweight rocker arms. The intake is operated by high-end titanium valves. As always, the cylinder head cover is tilted to facilitate maintenance work.

new muffler

The 450 EXC's new, improved muffler, with its special "Sixdays" coating, not only has more volume and a new design, it also reduces noise levels to meet future more stringent standards.

new clutch

The 450 EXC's new clutch, with its sturdy steel housing and gear-saving anti-shock device, uses a disc spring for the first time instead of the usual spiral springs, considerably reducing activation effort. Brembo® hydraulic control allows sensitive modulation of the clutch.

new frame

The completely redesigned frame, made from high-quality chromium-molybdenum steel, boasts even greater lateral torsional rigidity. It also provides even better shock absorption, further enhancing the 450 EXC's handling and comfort.

new swingarm, new PDS, new tuning

Lighter, the 450 EXC's new forged aluminum swingarm houses the shock absorber even more centrally, for better load distribution. The new PDS suspension, 7 mm (0.28 in) longer, with High/Lowspeed rebound and compression damping adjustment, is mounted flatter, offering greater progression.

retuned telescopic fork

The 450 EXC features the latest WP upside-down fork, with a wider adjustment range and a new focus. The sensitive response and excellent damping of the open cartridge fork with 48 mm (1.89 in) tubes contribute to the 450 EXC's extraordinary handling and precision.

new wheels

The new wheels could hardly be lighter and more stable, with their robotically treated hubs, Giant black anodized rims, black zinc/nickel-coated spokes and super-light aluminum nipples. This reduces unsprung weight and the gyroscopic effect, contributing to the 450 EXC's extraordinary manoeuvrability.

bodywork

The 450 EXC's new bodywork, with its slim seat and spoiler lines and excellent contact points, further enhances ergonomics, making it even easier and more precise to ride. The longer mudguard protects the rider even more effectively against stone chips.

six Days equipment

- Handlebar-mounted map selector for choosing between different engine control diagrams

- Camel SXS saddle for long-distance comfort

- Heavy-duty plastic engine guards protect the engine and lower frame beams.

- Radiator fan to optimize temperature under extreme loads.

- Orange-anodized milled fork crowns for precise fit of fixed tubes to optimize fork glide.

- Quick-release kit for easy front-wheel removal

- Solid rear brake disc for improved heat retention and reduced pad wear.

- Rear disc guard to protect against mechanical damage to the disc

- Rear brake pad quick-release kit for quick pad changes without tools

- Aluminum rear chainring with riveted steel sprocket for reduced weight and greater strength.

- Wheels with extremely robust black anodized Giant rims and high-quality black zinc/nickel-coated spokes

- Six Days Graphics" design similar to KTM factory machines: orange powder-coated frame, orange anodized fork crowns, orange anodized handlebars and anthracite anodized silencer

Photos: KTM Powersports AG