Built with adventure flowing in its veins, the 2015 KTM 250 EXC-F is a capable dirt bike that was especially developed to be able to support the toughest punishment without breaking a sweat. Sleek, agile and light, the 2015 KTM 250 EXC-F sets new standards in its class as far as ride and handling performances are concerned.

At its heart sits a 1-cylinder, 4-stroke, water cooled engine with a displacement of 249.91 Cc. The engine’s speed is kept under control by a six speed transmission and is fueled by a 9 liter fuel tank.

The KTM 250 EXC-F is built on a tough frame made of lightweight, high strength, chrome-molybdenum steel section tubes which is paired with a cast aluminium swingarm. You also get front and rear disc brakes, WP suspensions and triple clamps.

Hit the jump for more information on the 2015 KTM 250 EXC-F.

  • 2015 KTM 250 EXC-F
  • Year:
    2015
  • Make:
  • Engine:
    1-cylinder 4-stroke engine, water-cooled
  • Transmission:
    6-speed
  • Energy:
    Electronic Fuel Injection (EFI)
  • Displacement:
    249 cc

Overview

2015 KTM 250 EXC-F Exterior
- image 565040

KTM 250 EXC-F 2015: Handling Miracle

The 250 EXC-F has been an established force in the E1 World Championship for years now and last year it bore Meo Antoine to the world title. Completely revamped for the last model year with a new engine and new bodywork, the enduro receives several clever detailed enhancements in MY 2015 to ensure its superiority in future as well.

2015 KTM 250 EXC-F Key Features:

2015 KTM 250 EXC-F Exterior
- image 565039

Wheels and Brake:

Wheels
The wheels are equipped with new, black, 7050 T6 aluminium Giant rims, black coated spokes with lightweight aluminium nipples and lightweight CNC-machined hubs, allowing highest levels of stability to be achieved while keeping weight to a minimum. The fitted Maxxis enduro tyres have been specially developed for KTM and excel with perfect traction and outstanding performance.

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. As the best brakes in enduro sport, they remain unchanged for MY 2015.

Engine:

2015 KTM 250 EXC-F Exterior
- image 565038

New Engine
The 250 EXC-F is a proven winner in the fiercely fought enduro series and enjoys the recognition of several prestigious world championship titles. This machine shares many basic components with the successful engine of the 350 EXC-F and excels with first-class performance and plenty of torque from the bottom end up, thanks to its advanced design and state-of-the-art fuel injection. The bike is manoeuvrable, agile and controllable, quickly gaining the complete trust of the rider. The DDS clutch features Brembo hydraulics for comfortable clutch operation, while an electric starter and a kickstarter make starting no problem in every situation. Newly developed oil strainer sealing rings are used for MY 2015 to provide better durability in the most extreme conditions and a longer service life.

Crankshaft
The crankshaft of the 250 EXC-F is designed with sufficient gyrating mass for spontaneous throttle response and best possible traction. A plain bearing in the lower conrod eye with two press-fit bearing shells that run directly on the crank pin, increases the longevity of the engine and extends the crankshaft service intervals - two major benefits for the customer.

Engine Case
Thanks to the crankcase being 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 high-strength aluminium alloy is used, which is extremely resistant to stone impact and other damage.

Cylinder Head
The heart of KTM EXC DOHC engine is the cylinder head with twin overhead camshafts and ultra-light, DLC-coated cam followers. In conjunction with the large intake valves, the big, flow-optimised ports enable optimum intake gas flow for outstanding performance. The camshafts have been specially designed to maximise performance and torque, with power development adapted to enduro riding. The engine is equipped with ultra-light titanium valves and cam followers for reduced reciprocating weight to allow higher revs.

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

Starter
The 250 EXC-F engine offers the benefits of en electric starter and a kickstarter. Positioned behind the cylinder, the electric starter is well protected and connected via the electric starter drive in the ignition cover to the starter freewheel on the ignition rotor.

DDS Clutch
For MY 2015, the DDS clutch (Damped Diaphragm Steel) is equipped with a further refined, lighter, single-piece basket, which together with its integrated primary gear, is machined from a single solid billet 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. 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 6-speed enduro gearbox, developed especially for the 250 EXC-F, 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 (EMS) 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.

Bodywork:

2015 KTM 250 EXC-F Exterior
- image 565031

Bodywork
The bodywork has been designed ergonomically and functionally in such a way that the whole motorcycle is in perfect harmony with the rider down to the very last detail.

Airbox
At the same time, the ingenious design of the airbox guarantees optimum protection of the air filter from dirt plus maximum air throughput for the highest performance. The airbox covers are manufactured in a 2-component process with new in-mould graphics. The filter is replaced very quickly, without any tools. Furthermore, two additional tabs on the cover allow it to be secured with bolts if desired.

Handlebar
All EXC models are equipped with an extremely sturdy, tapered Neken handlebar made from high-strength aluminium alloy. In accordance with the proven KTM standard, the black anodised handlebar can be fixed in a choice of four positions. The handguards are made from a new material in MY 2015 in order to achieve even greater impact resistance.

Speedo
The new speedo from MAE integrates all control lights, except those for the turn indicators, into a single component. This provides the cockpit with a cleaner and tidier appearance and makes the available information clear and easy to read.

Superior Chassis:

2015 KTM 250 EXC-F Exterior
- image 565020

Frame
The modern frame design of the 250 EXC-F, comprising lightweight, high strength, chrome-molybdenum steel section tubes, combines maximum longitudinal stiffness with optimum torsional stiffness. It guarantees easy handling and precise steering behaviour, as well as excellent ride stability. So the new frame not only shines with the new colour, it also clearly represents the benchmark in terms of weight and stability. The frame colour shines in MY 2015 in the same orange as the KTM factory racing team, making the styling even more attractive. Moreover, it’s easier to maintain and provides more space for mounting the fuel tank and other components. Thanks to the frame design and in conjunction with the rear PDS damping system, shocks at the rear wheel are absorbed and dissipated optimally.

Swingarm
The cast aluminium swingarm has been developed with state-of-the-art calculation and simulation software and constructed, in terms of design and wall thickness, for minimum weight with optimum stiffness and precisely defined flexibility.

Suspension/Damping
The KTM 250 EXC-F has its own individual suspension setting, optimally tuned to weight and engine. The high-quality WP suspension components have been specially designed for enduro use. They ensure maximum traction and plenty of comfort. 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.

Triple Clamps
The triple clamps have been specifically designed for enduro use and ensure precise handling thanks to their supporting of the fork flex. The rider receives precise feedback from the front wheel, even in the toughest terrain, thereby increasing riding safety and speed.

Specifications

Engine 1-cylinder 4-stroke engine, water-cooled
Displacement 249.91 cm³
Bore 78 mm
Stroke 52.30 mm
Starting aid Electric starter/Kickstarter
Fuel system Electronic Fuel Injection (EFI)
Engine lubrication Forced oil lubrication with 2 Eaton pumps
Primary ratio 24:73
Secondary ratio 14:52 (13:52)
Cooling system Liquid cooling system, continuous circulation of cooling liquid with water pump
Clutch Wet multi-disc clutch DDS / Brembo hydraulics
Transmission 6-Speed
Ignition system Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment
Frame Central tube frame made of chrome molybdenum steel tubing
Forks WP Suspension Up Side Down 4860 MXMA PA
Shock absorber WP Suspension PDS 5018 DCC
Suspension travel Front 300 mm
Suspension travel Rear 335 mm
Brake system Disc brakes, brake calipers on floating bearings
Brake discs - diameter Front 260 mm
Brake discs - diameter Rear 220 mm
Chain 5/8 x 1/4"
Steering head angle 63.5°
Wheelbase 1,482±10 mm
Ground clearance, unloaded 345 mm
Seat height, unloaded 970 mm
Total fuel tank capacity, approx. 9 l Unleaded premium fuel (95 RON)
Weight without fuel, approx. 105.5 kg
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