2014 KTM 250 EXC-F SIX DAYS

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The KTM 250 EXC-F Six Days is packed with a comprehensive list of accessories which make it perfectly suited for the requirements of the toughest enduro circuits. The special Six Days Equipment includes a 4CS closed-cartridge fork from WP Suspension with revamped settings, new machined triple clamps, orange anodized, a black anodised handlebar with KTM Six Days logo, a skid plate, a Radiator guard and an exhaust silencer with Six Days anodising (anthracite) and Six Days logo.

The motorcycle is built around a 249.91 cc, 1-cylinder 4-stroke, water-cooled engine which comes with a new case manufactured of aluminium alloy in a pressure die-casting process. The motorcycle is equipped with a new six-speed enduro gearbox that was developed specially for this model.

The motorcycle’s backbone is represented by a stiff frame made from high quality, lightweight, chrome-molybdenum steel profiles.

Hit the jump for more information on the KTM 250 EXC-F SIX DAYS.

Overview

KTM 250 EXC-F SIX DAYS

2014 KTM 250 EXC-F SIX DAYS: Legendary

The 250 EXC-F - "READY TO RACE" for the world’s largest enduro competition, the "International Six Days Enduro". Six days in succession, over a thousand offroad kilometres, 40 hours in the saddle - a gruelling test, not only for the rider. A whole package of high-quality special options makes the KTM 250 EXC-F fit for this ruthless contest, in which more than half the starters bank on KTM every year. 250 EXC-F Six Days - only authentic with the orange powder-coated frame of the KTM Factory Team. No other brand is anywhere near as strongly and successfully represented in offroad sport as KTM. This is particularly clear in the world’s largest enduro competition, the "International Six Days Enduro" (ISDE), where more than 500 enduro riders from over 30 countries compete for the World Team Championship. A marathon enduro race that places just as high demands on the motorcycles as it does on the riders. That’s why year after year more than half the competitors place their trust in the tried and tested products from Austria. In 2013, the Six Days Race will be held on the Italian island of Sardinia. Those who want to arrive safely at the finish on the demanding, rocky terrain will have to make no compromises. In the form of the new Six Days models, KTM offers well-proven, robust machines that fully satisfy the high demands of this extraordinarily tough competition.

2014 KTM 250 EXC-F SIX DAYS Features and Benefits:

KTM 250 EXC-F SIX DAYS

Improved Performance:

KTM 250 EXC-F SIX DAYS

Engine Case
Thanks to a completely new design of engine case, which is now manufactured in a pressure die-casting process, it has been possible to significantly reduce the wall thicknesses compared with a gravity die-cast case. A new, high-strength, aluminium alloy ensures that the case is resistant to stone impact and other damage.

Crankshaft
The crankshaft on the new 250 EXC-F Six Days has 5% more gyrating mass available for achieving optimum traction. Similarly to last season’s KTM SX-F models, it is equipped with a plain bearing in the lower conrod eye. The previous needle bearing is replaced with two press-fit bearing shells that run directly on the crankshaft’s crank pin. The engine’s direct pressure lubrication system ensures the necessary oil supply. This design enhances the durability of the engine, thereby enabling an extension to the service intervals for the crankshaft - a benefit in terms of time and costs.

New Engine
The 250 EXC-F Six Days is virtually a guarantor for top places in hard-fought enduro battles – this is substantiated not only by the numerous world titles. For the 2014 model year, KTM engineers have ignited the next evolutionary stage and developed a completely new, state-of-the-art DOHC engine that unites the concentrated engine expertise amassed from motorsport and development. The design of the new generation shares numerous basic components with the successful 350 EXC-F engine. This results in a perceptible increase in torque, above all in the low to mid rev range (an additional 4 Nm between 6,000 and 7,000 rpm).

Cylinder Head
The heart of the newly developed DOHC engine is the redesigned cylinder head with twin overhead camshafts and DLC-coated cam followers. Compared with the previous year, larger, flow-optimised ducts in conjunction with the more generously dimensioned intake valves guarantee 10% more gas flow and therefore significantly improved performance. The new camshafts have also been designed to achieve a perceptible increase in torque compared to the predecessor model, together with enduro-specific engine characteristics. The engine’s optimised water jacket ensures even better heat dissipation.

Balancer Shaft
To counterbalance the inertia forces, the new 250 EXC-F engine is now also equipped with a balancer shaft that acts as a multi-function shaft, driving timing chain and water pump simultaneously.

Starter
The new 250 EXC-F Six Days engine can be started with either a kickstarter or an electric starter. Positioned behind the cylinder, the electric starter is well protected and connected via the electric starter drive in the ignition cover to the further improved freewheel on the ignition rotor. The starter freewheel has been optimised for increased durability and reliability.

DDS Clutch
The new 250 EXC-F Six Days is also equipped with the further optimised DDS (Damped Diaphragm Steel) clutch, which features a wear-free outer clutch hub and diaphragm springs. The single-piece hub is machined along with its primary gear from a solid block of high-strength steel. This process guarantees unbeatable reliability and allows the engine to be extremely narrow thanks to the compact, rivetless design of the outer clutch hub. In addition, this design allows use of thin steel discs, which also contributes to the compact dimensions of the clutch. The diaphragm spring enables implementation of an additional hub damping mechanism - a benefit in terms of traction and gearbox wear. Furthermore, an optimised inner clutch hub improves the durability of the clutch. Finally, in conjunction with the diaphragm spring, the hydraulic clutch actuation system from Brembo ensures very smooth and very precise clutch control.

Transmission
Compared with its predecessor, the new six-speed enduro gearbox, developed especially for the 250 EXC-F Six Days, has slightly shorter transmission ratios for 4th, 5th and 6th gears. The new gearbox excels with high precision and easy shifting. The secondary transmission has also been adapted to the new gearbox.

Engine Management System (EMS)
The engine management system from Keihin, with electronic fuel injection and 42 mm throttle body, ensures spontaneous responsiveness and maximum engine performance. An oil-cooled, 196 W alternator provides sufficient power for the fuel injection system, lights and other electrical loads. A redesigned ECU ensures even faster and absolutely reliable data processing. Various engine characteristics can be selected via the EMS, with a map-select switch available as a PowerPart. Furthermore, a user-setting tool (also available as an option) allows data to be read from the bike by laptop and the mapping, ignition and fuel injection to be modified in a matter of a few mouse clicks.

Air Box
The airbox on the KTM 250 EXC-F Six Days allows maximum air to pass through, but minimum dust and spray. Replacement of the twin-air filter takes approx. 15 seconds, without any tools. Absolutely "READY TO RACE".

Transparent Plastic Tank
The fuel level can be seen directly from the outside on the 9.5-litre, transparent plastic tank. A micro-filter in the fuel line keeps even the smallest of particles away from the injection nozzle and now sits in the fuel line’s quick-release coupling between tank and injection valve. Therefore, replacing it is child’s play. 13-litre fuel tanks are available for all models from the PowerParts range. The tried and tested bayonet filler cap - including safety mechanism to prevent unintentional twisting - allows the fuel tank to be opened and closed quickly with only a quarter turn.

Slim Ergonomics For Perfect Control:

KTM 250 EXC-F SIX DAYS

Bodywork
The KTM 250 EXC-F Six Days has bodywork with extremely slim ergonomics and excellent contact points between rider and machine. It provides unlimited freedom of movement. For MY 2014, the bike excels with the graphics restyled in 2013 in the colours of the ISDE in Germany.

Handlebar
The KTM 250 EXC-F Six Days is equipped with a tapered Neken handlebar made from high-strength aluminium alloy. In accordance with the proven KTM standard, the handlebar can be fixed in a choice of four positions. Redesigned handguards made from ultra-sturdy 2-component plastic have been fitted for the 2014 model year, ensuring more efficient hand protection. The newly installed clutch armature from Brembo has been adapted to the appearance of the brake armature.

Superior Chassis:

KTM 250 EXC-F SIX DAYS

Telescopic Fork
The KTM Six Days models are equipped with a 48 mm 4CS closed-cartridge fork from WP Suspension. The 4-chamber technology (4CS) patented by WP not only provides a key benefit in terms of responsiveness and consistent damping characteristics, it is also lighter and oil services prove to be far simpler than on the conventional closed-cartridge versions. The setting has been made slightly stiffer and sportier for the 2014 model year to give the fork even more reserves on extremely rutted tracks as well. Naturally, the setting can easily be adapted to track and rider in a matter of a few clicks at the top of the fork: compression damping on the left-hand shaft, rebound damping on the right - another advantage of the 4CS technology.

Triple Clamp
Meticulously finished triple clamps, machined from a solid block: Not only do they look classy in anodised orange; they are also designed in such a way that they support the responsiveness and sliding behaviour of the new fork with their special shaping. The attachment points on the lower triple clamp have been adapted for new front fenders for the 2014 model year.

High Quality Wheels
The high quality, alloy wheels from GIANT made of extremely stable 7050 aluminium, featuring exclusive Six Days lettering and CNC-machined hubs, are standard on all KTM Six Days models. The MAXXIS FIM tyres provide excellent traction, very precise directional control and a long service life. An additional Six Days standard feature: the Supersprox 2-piece rear sprocket with steel outer ring and aluminium star.

Brakes
High-tech brakes from Brembo have always been standard equipment on KTM offroad bikes and, together with the lightweight wave brake discs, they are the measure of all things in terms of brake technology. A new handbrake armature has been employed for the 2014 model year, with new remote reservoir, smaller brake piston diameter and a new lever with optimised lever kinematics. As a result and thanks to optimised sintered brake pads (Toyo B169), the performance and application of the front brake have been perceptibly improved again.

Individual Suspension Settings
Each EXC model has its own individual suspension settings, optimally tuned to weight and engine. At the rear, a PDS shock absorber from WP Suspension works with a direct linkage to the upper side of the swingarm. The wide range of setting options for rebound damping and high- and low-speed compression damping are standard on KTM bikes.

Frame
In keeping with KTM tradition, the frames are made from high quality, lightweight, chrome-molybdenum steel profiles. In conjunction with the rear PDS damping system, they are designed for optimum absorption of shocks introduced into the frame by the rear wheel. In response to the trend for aluminium frames followed by our rivals, we supply a high-tech steel frame that weighs approx. 0.5 kg less than the lightest competitor. Moreover, it’s easier to maintain, work on it is simpler and it provides more space for the fuel tank and other components.

Swingarm
All KTM EXC models are designed with a lightweight, cast aluminium swingarm featuring direct linkage of the PDS shock absorber on the upper side. The aluminium casting process allows production of a single-piece swingarm with unlimited geometric possibilities and reduces inconsistencies caused by welding work. The swingarm has been designed to provide targeted flexibility on the one hand, thereby bolstering the suspension, and high torsional stiffness on the other.

With Exclusive Special Equipment:

KTM 250 EXC-F SIX DAYS

Six Days Equipment
• 4CS closed-cartridge fork from WP Suspension with revamped settings
• Frame with high-quality orange coating in race look
• New machined triple clamps, orange anodised
• Black anodised handlebar with KTM Six Days logo
• Supersprox 2-piece rear sprocket with steel outer ring and aluminium star
• Solid rear brake disc (no slots/holes)
• Camel SXS seat with optimised foam core
• Skid plate
• Radiator guard
• Radiator fan
• Exhaust silencer with Six Days anodising (anthracite) and Six Days logo
• Wheels featuring high quality, black anodised rims made by GIANT with Six Days logo and black spokes
• Quick-release spindle at the front
• Orange radiator grille
• Orange chain guide
• New speedo from MAE
• Exclusive Six Days graphics

Specifications

Engine Type1-cylinder 4-stroke engine, water-cooled
Displacement249.91 cm³
Bore78 mm
Stroke52.30 mm
Starting aidElectric starter/Kickstarter
Engine lubricationForced oil lubrication with 2 Eaton pumps
Primary ratio24:73
Secondary ratio14:52 (13:52)
Cooling systemLiquid cooling system, continuous circulation of cooling liquid with water pump
ClutchWet multi-disc clutch DDS / Brembo hydraulics
Ignition systemContactless, controlled, fully electronic ignition system with digital ignition timing adjustment
FrameCentral tube frame made of chrome molybdenum steel tubing
Shock absorberWP Suspension PDS 5018 DCC
Suspension travel Front292 mm
Suspension travel Rear335 mm
Brake systemDisc brakes, brake calipers on floating bearings
Brake discs - diameter Front260 mm
Brake discs - diameter Rear220 mm
Chain5/8 x 1/4"
Steering head angle63.5°
Wheelbase1,482±10 mm
Ground clearance, unloaded345 mm
Seat height, unloaded970 mm
Total fuel tank capacity, approx.9 l Unleaded premium fuel (95 RON)
Weight without fuel, approx.105.5 kg

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