Playful and ready for adventure, the KTM 450 EXC is more than capable to get you out of trouble when things get rough.

In its tough adventures, the 450 EXC is backed up by a 449.3 cc, 1-cylinder, 4-stroke, water-cooled engine which is mated on a six speed transmission with wet multi-disc clutch.

The engine is mounted on a central tube frame made of chrome molybdenum steel tubing. The frame sits on a front WP suspension Up Side down fork (300 Mm wheel travel) and a rear WP Suspension PDS shock absorber (335 Mm wheel travel). The stopping power is handled by 260 mm front and 220 mm rear disc brakes which can deal great with anything you ask of them.

It is also worthy of being mentioned that for MY 2015, the 450 receives a new silencer with perforated pipes to reduce the noise level.

Hit the jump for more information on the KTM 450 EXC.

  • 2015 KTM 450 EXC
  • Year:
    2015
  • Make:
  • Engine:
    1-cylinder 4-stroke engine, water-cooled
  • Transmission:
    6-speed
  • Energy:
    Electronic Fuel Injection (EFI)
  • Displacement:
    449 cc
  • Top Speed:
    100 mph (Est.)

Overview

2015 KTM 450 EXC Exterior
- image 565116

KTM 450 EXC 2015: The Benchmark

The 450 EXC is one of the most powerful enduro machines in its class. The combination of light weight and high-capacity, high-tech, SOHC 4-stroke technology is the right choice for all those in the E2 class seeking maximum 4-stroke performance combined with playful handling. These powerhouses are regarded without doubt as the benchmarks in their classes.

2015 KTM 450 EXC Key Features:

2015 KTM 450 EXC Exterior
- image 565115

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 450 EXC Exterior
- image 565110

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. 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.

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.

Cylinder Head
The cylinder head is equipped with an overhead camshaft. This actuates two titanium intake valves plus two steel exhaust valves. The weight-optimised valve train ensures low friction and therefore both improved performance and reduced engine braking.

Oil Circuit
The engine is equipped with two oil pumps and a common oil circuit. A pressure pump supplies reliable lubrication to the crankshaft, piston, balancer shaft and valve controls. It also ensures cooling of the ignition and lubrication of the clutch. A suction pump draws oil from the crankcase and uses it to lubricate the transmission.

Engine
Developed for tough enduro conditions, the 449.3cc SOHC engine is characterised by an extremely compact design, very easy maintenance and outstanding robustness, with weight kept to a minimum. Together with the Keihin fuel injection system, this results in unrivalled performance and rideability - specially designed for enduro use.

Starter
The 450 EXC is equipped as standard with both kickstarter and electric starter. Positioned behind the cylinder, the electric starter is well protected.

Piston
The lightweight, forged piston with a box-in-box design is equipped with the high-performance piston rings of the 450 SX-F. The benefits are minimal oil consumption and top performance.

Crankshaft
The crankshaft with 63.4 mm stroke and ultra-light connecting rod is manufactured by Pankl from a special, high quality steel. As on the other 4-stroke models, it is equipped with a plain bearing in the lower conrod eye. Two press-fit bearing shells run directly on the crank pin. The engine’s direct pressure lubrication system ensures the necessary oil supply for this bearing. This design improves the durability of the engine, thereby enabling an extension to the service intervals for the crankshaft, a benefit for the customer in terms of time, effort and cost.

Balancer Shaft
To counterbalance the inertia forces, the engine has a balancer shaft that acts simultaneously as a drive for the water pump.

Transmission
The 6-speed transmission is designed specifically for the engine characteristics of the 450cc engine and for every type of enduro use. It excels with precise and easy shifting.

Superior Chassis:

2015 KTM 450 EXC Exterior
- image 565109

Frame
The modern frame design of the 450 EXC, 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 450 EXC 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.

Bodywork:

2015 KTM 450 EXC Exterior
- image 565108

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.

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.

Exhaust System
Light and robust. The aluminium silencers on EXC models are renowned for their outstanding performance, while keeping noise to a level well within FIM rules. For MY 2015, the 450 receives a new silencer with perforated pipes to reduce the noise level and further improve performance.

Specifications

Engine 1-cylinder 4-stroke engine, water-cooled
Displacement 449.3 cm³
Bore 95 mm
Stroke 63.4 mm
Starting aid Electric starter/Kickstarter
Engine lubrication Forced oil lubrication with 2 Eaton pumps
Primary ratio 32:76
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
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. 111 kg
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