Motorcycle specifications KTM250 EXC-F 6 days 2016 A champion on the attack

It's hard to beat the 250 EXC-F in its class. Here's a quality tool for tackling the 6 Days. No other brand in off-road motorsports has a track record comparable to that of KTM. The special edition Six Days models pay tribute to this success with special performance enhancements and top-of-the-range components. In 2015, the International Six Days of Enduro (ISDE) will be held in Slovakia, and the KTM model range has been equipped to cope with all the pitfalls that these muddy, rocky terrains can present.

engine

there's no doubt about it, the 250 EXC-F will be at the top of the highly competitive enduro class, as proven by its previous World Championship titles. The engine construction shares many components with the brilliant 350 EXC-F, and boasts phenomenal torque and remarkable power. The 250 EXC-F leads its class in terms of performance, thanks to its dynamic yet agile power and advanced fuel injection system.

cylinder head

the centerpiece of the DOHC engine is the cylinder head, with twin overhead camshafts and DLC-coated rocker arms. Huge flow-optimized intakes, combined with large intake and exhaust valves, guarantee considerable flow, contributing to the machine's performance. The camshafts have been designed to deliver maximum power and torque, while retaining enduro-specific power.

engine Management System (EMS)

the Engine Management System supplied by Keihin, combined with electronic fuel injection and a 42 mm throttle body, ensures immediate response and optimum engine performance. The 196 W oil-cooled AC alternator is sufficient to power fuel injection, lighting and all other electrical consumers. The sophisticated ECU ensures fast, reliable data processing. Combined with the optional engine map selector in the Power Parts range, the EMS allows the driver to select different engine characteristics. In addition, the optional User Tuning Tool allows engine data to be read using a laptop computer, and ignition and injector maps to be modified with just a few clicks.

cylinder and piston

the short stroke and large bore allow the use of large valves. The lightweight, forged bridged box piston delivers optimum performance and dynamic power delivery, while low-mounted oscillating weights reduce vibration.

crankshaft

the 250 EXC-F's crankshaft is equipped with a flywheel designed for optimum drive. The crankshaft features a smooth connecting-rod bearing. Two bearing shells are press-fitted directly onto the crankpin. The bearing is supplied with oil from the engine's pressure lubrication system. This design extends engine life and crankshaft service intervals, saving the customer time, effort and money.

crankcase

the wall thickness of the die-cast crankcase has been considerably reduced compared to the gravity casting process. The aluminum alloy used has a high tensile strength and is highly resistant to stone impact and other possible shocks.

valve train

the crankshaft drives a multi-function intermediate shaft in a lateral position, which in turn drives the coolant pump and the two camshafts via the timing chain. It also acts as a balancer shaft. A hydraulic chain tensioner ensures chain tensioning for ultra-precise timing.

starter

to start the 250 EXC's engine, the machine is equipped with a kick starter as well as an electric starter. Tucked away behind the cylinder, the electric starter is connected to the starter freewheel at the ignition rotor via the starter drive in the ignition cover.

dDS clutch

the DDS (damped diaphragm steel) one-piece clutch housing is machined from a single piece of high-strength steel, together with the primary transmission pinion. This process guarantees unrivalled reliability, and contributes to the engine's compactness thanks to its rivet-free design and ultra-thin steel linings. The elastic diaphragm allows the use of an additional rubber damping system inside the clutch hub, ensuring transmission reliability and excellent driveability. Last but not least, the Brembo hydraulic clutch mechanism associated with this elastic membrane plays an essential role in clutch progressiveness and operation.

gearbox

developed specifically for the 250 EXC-F, the Enduro gearbox with its 6-speed gearbox features relatively short ratios from 1st to 5th, as well as an overdrive 6th gear. The gearbox features smooth, precise shifting.

fairing

the ergonomically designed fairing of the KTM 250 EXC-F Six Days is extremely slim, offering optimum contact between rider and machine. It guarantees total freedom of movement.

handlebars

all EXC models are equipped with ultra-strong, profiled Neken handlebars made of high-tensile aluminum alloy. Bridges of proven design standards allow the handlebars to be fixed in four different positions. Leonelli's new lighting control is adapted to the demands of enduro riding. Standard perforated handguards offer optimum protection for the rider's hands.

six Days equipment

- WP 4CS closed-cartridge suspension for optimum damping and high resistance to bottoming
- Camel saddle for optimum comfort over long distances
- Shoe for optimum protection of frame and engine
- Orange anodized machined fork crowns for perfect fork retention and operation
- Orange frame
- Supersprox Stealth bi-metal rear sprocket with aluminum inner sprocket and toothed steel outer sprocket for unparalleled durability
- Solid rear brake disc (not perforated) for improved thermal resistance and reduced brake pad wear
- Floating front brake disc for long-lasting, even braking in extreme conditions
- Front brake disc cover for optimum impact protection
- Lightweight, durable competition mirror
- Metzeler tires developed in collaboration with KTM for unrivalled grip and traction
- Integral radiator protection
- Radiator fan on all 4-stroke models for optimized temperature management in extreme conditions
- Carbon protection tube on all 2-stroke models for effective protection of the expansion chamber
- Anthracite anodized Six Days muffler with Six Days logo (except on 125 EXC)
- Front wheel axle puller for quick removal of the front wheel
- Orange radiator grill
- Orange chain guide
- Exclusive Six Days graphics in striking design

frame

the modern frame design of the 250 EXC-F Six Days, with tubular sections in lightweight, high-strength chrome-molybdenum steel, offers maximum longitudinal rigidity combined with optimum torsional rigidity. It ensures excellent handling and steering precision, as well as excellent riding stability. So the new frame doesn't just come in a new color; it also sets the benchmark in terms of weight and stability. The frame is the same orange color as that of the KTM factory team, making it even more attractive. Thanks to the combination of frame design and the PDS rear damping system, shocks to the rear wheel are optimally absorbed and dissipated. The 2016 model is also equipped with a sturdy frame protector.

telescopic fork

kTM Six Days models are equipped with a 48 mm closed-cartridge 4CS fork from WP Suspension. Not only is WP's patented 4-chamber technology (4CS) an advantage in terms of responsiveness and consistent damping performance, it's also lighter and the oil change procedure is much simpler than on traditional closed-cartridge versions. Of course, the settings can be easily adapted to the track and rider with a few clicks of the knob at the top of the fork: compression adjustment on the left and rebound on the right: another advantage of 4CS technology.

individual suspension settings

each EXC model has its own suspension settings, perfectly matched to weight and engine. at the rear, a PDS shock absorber from WP Suspension is connected directly to the upper part of the swingarm. KTM machines come with a wide range of high-speed and low-speed rebound and compression adjustment options as standard.

swingarm

the design of the cast-aluminum swingarm was the result of careful calculations and computer simulation. Its design and wall thickness guarantee optimum rigidity while reducing weight, as well as precisely defined flexibility.

high-quality wheels

all KTM Six Days models come with GIANT alloy wheels as standard.all KTM Six Days models are equipped as standard with GIANT wheels made of high-quality, extremely stable 7050 aluminum alloy, featuring the Six Days logo and CNC-machined hubs. Developed in collaboration with KTM, Metzeler tires ensure excellent traction, steering precision and durability. Another standard feature on Six Days is the Supersprox bi-metal rear sprocket with steel outer ring and aluminum star.

fork crown

top-of-the-range CNC-machined fork crowns are designed specifically for enduro riding, ensuring precise handling by influencing fork flex. Feedback to the front wheel is exceptional, even on the roughest terrain, increasing safety and passing speeds.

brakes

KTM off-road models have always been equipped with high-tech Brembo brakes and Wave discs, the ultimate braking solution. True benchmarks in the enduro category, they remain unchanged on the 2016 models.

News and media credits: KTM