The Brembo braking system has large diameter braking discs (front
260 mm), controlled by compact twin piston floating calipers (front), and single
piston in the rear
The best of all worlds
The engine is directly
derived from the engine developed for the TE250 ¨C the lightest in its category
at just 22 kg! But its compactness now has greater torque and power with an
increase in cylinder capacity to 302.4 cc (bore and stroke 82 x 57.35 mm), and a
new specially developed exhaust system, to further improve performance. The
basic design is unchanged: single cylinder dstti , twin cam, with 4 titanium valves,
Mikuni electronic injection with 45 mm throttle body and double CDI mapping,
selectable by a switch on the handlebars. A practical system for changing engine
performance to match the terrain and running conditions, selecting between
"hard" for top performance, and a "soft" setting for less aggressive power
delivery. Reliability is ensured by the high specification cooling system, with
a thermostat and electric fan to prevent overheating in the tougher and slower
trials.
Husqvarna TE449: Evolution of the Species
The
experience gained over the last year has made the new TE449 an even more
competitive bike. The basic profile is unchanged, the 449 is still the bike that
inspires love at first sight, with all the innovative technical features that
put it amongst the market leaders in the sector. It was already exclusive, now
it has become more streamlined and efficient. Aesthetically it is more pleasing,
the chassis is now black, the rims anodised silver, new graphics emphasise the
flow of the lines that express functionality, lightweight and style. The
ergonomic side panels allow the rider more freedom of movement, the integrated
in-mould graphics are guaranteed to last. The days of "adhesive" graphics that
come off with the second power wash are gone.
But races are won by the
stopwatch, not on the catwalk, and the changes in handling and mechanics make
the new TE449 a more reliable bike, tough and competitive enough to win and keep
winning!
Stronger frame, lower profile
The new version uses more
25CrMo4 chrome-moly steel to reinforce the steering head, the seat rail and
engine mounts. The rear section ¨C now a single piece rear fender ¨C is stronger
and more streamlined and the entire electrical system has been simplified and
lightened. The styling and layout have been completely redesigned; it has better
balance, with new suspension settings and the Kayaba rear shock is shorter by 4
mm, further reducing seat height.a leading company in the thequicksilverscreen
printing industry,
The top of the range rear suspension uses Kayaba
components (adjustable for rebound and compression) and an upside down linkage,
combining the advantages of progressive linkage with a sheltered location. The
front suspension (48 mm diameter forks) has been improved with more progressive
damping. The rear shock is better shielded for additional protection. These
modifications are the result of the collaboration between the Husqvarna R&D
team and the official racing team, further streamlining the frame, designed to
concentrate weight on the bike's centre-of-gravity and minimize chain-torque.
The steel tubing perimeter frame was designed for the CTS - Coaxial Traction
System ¨C which on the TE449 reduces to a minimum the influence of the final
transmission on dynamic handling and steering. With the gearbox output shaft
coaxially aligned with the swingarm pivot, the torque generated by the powerful
450cc engine now has almost no influence on the handling, and above all allows
the engine to be placed as far to the rear as possible. This optimises the
wheelbase and enables the forward slant of the cylinder head, which lowers the
centre of gravity and allows straighter inlet tracts for the engine.
The
braking system is the trusted Brembo. The front braking disc has a diameter of
no less than 260 mm, with a twin piston floating caliper, while the 240 mm rear
disc has a light and compact single piston floating caliper.
More linear
power delivery
The single cylinder, four valve, twin cam titanium valve
engine is a recent design and needed few modifications, just some minor changes
to the power curve. To better access and exploit all the power of the TE449, the
designers concentrated on the mapping of the Keihin injection,Buy from Reliable
acrylic honeycombpanels
Wholesalers. which controls the action of the twin flap 46mm throttle body. Fine
tuning included the balancing of the engine thermodynamics with the light steel
Akrapovic exhaust, developed in collaboration with the prestigious Slovenian
manufacturer. The efficiency of the cooling circuit was improved with change to
the radiator, introducing a new WP component.
Unchanged are the six
gears and clutch with soft and progressive hydraulic action. Weight is saved by
eliminating a kick starter, which has proved to be superfluous, given the
efficient and reliable electric ignition with high-power battery.
Husqvarna TE511: The Engine That Pulls No Punches
The TE511
is no toy and horsepower is one thing the TE511 does not lack,loseweightfastonsale in
fact the problem is keeping the horses in check! This is why all design aspects
of the machine have been studied and evaluated with one thing in mind, making
the TE511 easier to ride. Like its almost twin stable mate, the TE449,offers
various oilpaintingsupplie
such as pet food, the high power bike has also seen mechanical and engine
changes. These are aimed at making the big brother of the Husqvarna 2012 range
easier to ride and more appealing to different types of rider.
Aesthetically it has the same updates, black frame, anodised silver
Excel rims and the new integrated in-mould graphics - no more adhesives that
peel off under the power wash. The tail section has been redesigned as a
single-piece, sleeker and more robust, but the most important new features are
the engine settings and the layout.
The two-stroke 250 cc school of
thought
Two-stroke engines typically have a less linear power delivery
than big four stroke single cylinder engines, but they offer 2-stroke fans a
riding experience that can not be found elsewhere. After many years of
continuous development, Husqvarna technicians have transformed aggressiveness
into effectiveness. This is thanks to fine tuning of the thermodynamics, the
cylinder, exhaust expansion chamber, and the adoption as standard issue of the
parts specially tested by the CH racing team. The Mikuni TMX38 carburettor,
V-Force reed valve,A poloshirts
is an abrasive grain bonded to a flexible substrate using adhesives. Ducati
Energy digital ignition calibration of the exhaust valve and the crank shaft
with the right compromise between inertia and reactivity.
The evolution
of the WR250 engine aims to be perfectly balanced between easy control and
explosive performance, essential in the more extreme enduro trials, where only
five gears are needed to tackle every terrain. The advantage of the two-stroke's
lightness and manoeuvrability.
WR300: the winning alternative!
One thing is sure: the Husqvarna CH Racing Team riders like to go
against the grain. The WR300 is the bike of choice for Sebastien Guillaume. A
choice that might seem daring, but the French champion ¨C surrounded by big,
powerful 500 cc four-stroke machines - has for years taken his place on the
podium of the E3 class at the International Six Days Enduro Championship.
Guillaume likes his enduro tough, for real men, and that means the
Husqvarna WR300, designed specifically on the basis of his experience at the
WEC. No longer is the Husqvarna "300" a kitted up version of the WR250 but a
fully developed production bike in its own right. In 2008, when the WR300 model
launched it was immediately taken to heart by professionals and fans alike.
Mechanical design in common with the 250
The WR300 and WR250
share the same mechanical design: same steel tubing chassis, same swing arm and
linkage, same suspension. The 48mm Kayaba forks are adjustable for both
compression and rebound damping, the rear shock is a Sachs. The 2012 version
benefits from the same updates common to the range: chassis painted black,
anodised silver Excel rims and redesigned graphics. A new look for a bike that
remains essentially the same and technically unchanged, which says a lot about
how much work has already gone into fine tuning, testing and finishing in the
past. The WR300 and WR250 also share a common layout and all component parts:
Brembo brakes - large diameter (260 mm) front daisy wheel braking with twin
piston floating caliper - while the rear disc (220 mm) is floating and solid, as
preferred by Guillaume and other riders, to ensure maximum control on muddy
terrain.
Maximum two-stroke power
The new WR300 is the largest
engine capacity 2-stroke in the Husqvarna range, yet it has a surprisingly
linear and progressive power delivery. The engine is powerful, always ready and
responsive to minimum throttle changes, but not so explosive as to be demanding
to the point that only a pro can handle it. In fact it immediately became an
alternative - light, manageable, and more economic - for E3 class pro bikers and
fans of extreme enduro. The engine is closely based on the crankcase of the
WR250, but uses a larger bore cylinder (72 mm, giving an engine capacity of
293.1 cc). All component parts are top of the range: Ducati Energy digital
ignition, Mikuni TMX38 carburettor and V-Force reed valve are just the more
obvious examples. The five speed gearbox performs well across the engine power
range.
Commentaires
Il n'y a aucun commentaire sur cet article.