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Airbox
The new airbox design offers
maximum protection of the air filter against soiling, while
ensuring maximum airflow in conjunction with lighter intake
snorkel that is made of a new material to reduce the deformation
due to air intake pulse for improved performance. The new Twin
Air filter is easier and safer to mount and can be changed
without tools in seconds, a standard and original KTM feature. |
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Battery and Wiring Harness
As in the past, all new
XC-F engines are fitted with the proven electric starter - a
unique KTM feature and a major benefit at all levels of
motocross racing. For MY 2016 the XC-F range fits a super
compact and lightweight lithium-ion starter battery, providing
safe starting of the engine while reducing the weight
significantly. |
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Brakes
High-tech Brembo brakes have
always been standard equipment on KTM off-road bikes, and
combined with the lightweight Galfer Wave discs, they are the
ultimate solution in braking technology. |
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Seat
Ergonomically perfect, the new
seat has a higher foam volume, which offers great comfort and
durability, while weighing the same as the previous model. |
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Frame
The new frame design provides
approximately 20% higher torsional rigidity and 30% less
longitudinal stiffness, with newly designed engine stays for
less vibration. This increased flexibility results in better
absorption of the energy created from the front and rear wheel
loads supporting the suspension for more comfort and less rider
fatigue. A 0.4° steeper steering angle and a 10 mm shorter wheel
base contribute to better handling, and last but not least it's
lighter than the previous model. |
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Footpeg
A new sophisticated "No-Dirt"
footpeg solution prevents dirt from blocking the pegs in order
to keep them in the correct position, even when dragging in deep
ruts. In addition, the new footpegs are larger, lighter and more
stable, providing better grip . |
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Swingarm
Anew sophisticated "No-Dirt"
footpeg solution prevents dirt from blocking the pegs in order
to keep them in the correct position, even when dragging in deep
ruts. In addition, the new footpegs are larger, lighter and more
stable, providing better grip . |
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Bodywork
For the new generation of XC-F
models the KTM factory riders were involved in shaping the
bodywork together with the specialists from KTM R&D and Kiska
Design. The goal was to achieve complete harmony between rider
and bike down to the finest details. The results are all-new
plastics that provide perfect ergonomics and contact points for
the rider, maximum freedom of movement, a lower seat height of
between 10 to 20 mm (rear end) and better comfort, especially in
the rear part of the seat. |
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Graphics
New modern in-mold graphics
highlight the Ready to Race character of the cutting-edge 2016
XC-F range of bikes. |
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Fuel Tank
All XC-F models have new
lightweight polyethylene tanks fitted with an integrated fuel
pump system and capacity of 2.25 gallons. Inside threads on the
filler cap make for an easy and reliable closure. |
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Cooling System
The proven integrated KTM cooling
system routes the coolant from the cylinder head through the
frame triangle, directly to newly developed aluminum radiators
made by WP, which have a new filler cap system and are made of a
stiffer alloy. Due to flow-optimized internal circulation and
CFD-calculated air ventilation, the cooling efficiency has been
improved by approximately 10 %. Sophisticated radiator guards
provide efficient protection in case of crashes. |
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Handlebar
The new generation XC-F models
are equipped with a new tapered handlebar made of high-strength
aluminum by NEKEN, which is fixed in a new rubber damped
handlebar clamp allowing the handlebar to be mounted in two
different positions. All 4-Stroke models feature a new throttle
assembly with model-specific throttle cams for different opening
characteristics and new ODI grips featuring lock-on fixing clamp
on the left-hand side. In addition the handlebar-mounted map
switch allows easy selection of different maps and the
activation of a launch control. |
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Monoshock
The new generation of monoshock
made by WP Suspension has been developed for the new XC models
in conjunction with the new frame and swingarm architecture,
including the reworked linkage system and the new WP forks. The
new body features a revised reservoir for a larger gas chamber
to reduce performance fade. The linkage system has also been
reworked with a revised geometry and longer pull rods. |
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Forks
The KTM XC models feature the
advanced WP 4CS four-chamber closed cartridge fork with an
updated setting for 2016. The 4CS fork has been specifically
designed and adapted for off-road riding conditions in the USA. |
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Triple Clamp
Top quality, CNC-machined triple
clamps have been something of a KTM trademark for years.
Ensuring precise handling, they provide proper clamping force
for correct flex characteristics, thus improving the action of
the forks. For 2016 the upper triple clamp features a newly
developed rubber damping system for the handlebar clamp in order
to reduce the vibration levels felt through the handlebar. The
clamps retain their forward and back adjustability for rider
preference. |
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Weight Reduction
The main target for the KTM
engineers when developing the new XC-F generation was a massive
weight reduction in conjunction with improved handling. The
resulting loss of nearly 8 lbs is outstanding, making the new
KTM models the lightest bikes on the track, even with electric
starting. |
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Engine
With new features such as more
compact dimensions, stronger performance throughout the rev
range and a weight reduction of 4 lbs, this newly developed
powerplant is the lightest 450 engine on the off-road market.
With a reworked single overhead camshaft cylinder head and the
latest electronic fuel injection, the 450 XC-F has unrivalled
power of more than 62 hp and a highly efficient power delivery. |
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Cylinder Head
An all-new camshaft controls
intake and exhaust flow through optimized ports in the newly
designed cylinder head. This activates four ultra-lightweight
titanium valves via extremely rigid rocker arms, which are DLC
coated on the intake side. This configuration allows engine
speeds of up to 11,500 rpm. In addition, the head is 350 g
lighter than the previous model due to the compact design. |
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Cylinder Head and Piston
A new 6 mm shorter
cylinder is more rigid and matched to the new cylinder head. An
extremely lightweight box-in-box type piston together with a
weight optimized piston pin contributed to the engine's low
vibrations and quick revving character. The compression ratio is
12.75:1. |
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Crankshaft
The 450 XC-F's crankshaft
features 10 % more inertia (without increasing weight) and
utilizes a shorter connecting rod over the previous model, which
contributes to an overall compact and light engine with a snappy
power delivery. A higher balancing factor reduces the vibration
level. A plain big end bearing with two force-fitted bearing
shells runs directly on the crank pin, and the overall design
offers the customer lengthened service intervals. |
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Counter Balance Shaft
The weight optimized,
side-mounted counter balance shaft also time drives the water
pump. Thanks to perfect mass balancing and low total oscillating
mass, engine vibration is kept to a minimum even at the highest
engine speeds. |
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Electric Starter
Like all KTM 4-Stroke
motorcycles, the 450 XC-F is started with ease by pushing a
button. Demonstrated time and time again, an electric starter
can become an invaluable advantage in the heat of off-road
competition. |
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Transmission
The new engine of the 450 XC-F
uses a lightweight 5-speed gearbox with unchanged gear ratios
that are perfectly matched to the power delivery of the large
displacement engine. 1st and 5th gears are now treated with a
special surface treatment for better reliability. |
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Engine Cases and Covers
The completely new design
of the die-cast engine cases allows for a much more centralized
shaft configuration, raising the crankshaft by 7 mm and 9 mm
backwards to centralize mass and for a weight savings of 1.2
lbs. Newly designed engine covers made of magnesium feature an
advanced surface structure in order to reduce the wear caused by
the rider's boots. |
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Clutch
The 450 XC-F employs the
KTM-developed DDS clutch (Damped Diaphragm Steel) with a
wear-free steel basket and extremely heat resistant clutch
plates. This design is distinguished by employing a diaphragm
spring instead of coil springs, which makes for a considerably
easier clutch action. The diaphragm spring also leaves
sufficient space for a damping system integrated into the clutch
hub, which benefits for both traction and durability. |
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Engine Management System
The completely reworked
Keihin Engine Management System, with electronic fuel injection,
features an all-new 44 mm throttle body, which provides
instantaneous response and maximum performance thanks to a
revolutionary injector position. The new ECU (Engine Control
Unit) includes a launch control for more efficient starts with
the provision of different maps according to the gear sensor
selection. In addition, the rider can activate an optional map
for a different power delivery via the map select switch on the
handlebar. |
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Wheels
The 450 XC-F is fitted with
lightweight, CNC-machined hubs, high-end Giant rims and black
spokes with lightweight aluminum nipples providing maximum
stability at minimum weight. The latest Dunlop Geomax AT81 tires
guarantee perfect traction and outstanding performance. |
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Brakes
High-tech Brembo brakes have
always been standard equipment on KTM off-road bikes, and now
are combined with newly designed and weight-reduced Wave discs
made by GALFER featuring improved heat resistance. Weight
reduction is 63g on the front disc, and 32 g for the rear. This
is the ultimate solution in braking technology. |
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