High-tech four-stroke single-cylinder for optimum MX2 performance.

With a weight of 22 kilograms signalling class-leading lightness, the
four-stroke engine already underwent an overhaul for 2012 to give it even greater rideability and durability than its predecessor. Featuring twin overhead camshafts and speed-resistant valve operation using finger followers and four lightweight titanium valves, the power unit boasts all the right credentials for high peak power and ideal torque build-up. In addition to these performance-enhancing engine components, there is also an electronic fuel injection system from Keihin with a throttle valve diameter of 42 millimetres mated to a Kokusan generator to optimise mixture preparation, combustion and, as a result, power output. Even the layout of the exhaust manifold has been changed in the interests of optimum engine performance. Again, the substantial increase in power is reflected by the addition of an “R” to the model name and for 2013, further enhancements to the engine include added crankshaft rigidity and a magnetic drain plug.

Elaborately engineered motocross chassis that can truly take the rough with the smooth.

The new TC 250 R is built around a black steel frame in a high-quality powder-coated finish made from tubes with varying cross-sections. To maximise torsional rigidity, the frame is reinforced with 25CrMo4 chromoly steel plates in the section around the steering head. The task of front wheel suspension and damping is performed by a top-class Kayaba upside-down fork with 48-millimetre stanchion tubes and closed-cartridge shock. This fork stands out for its supple response as well as the adjustability of the shock compression and rebound. At the rear, the new TC 250 R employs a
Kayaba central spring strut with linkage system for suspension and damping. Here again, the spring preload can be adjusted, while the shock enables compression and rebound to be set for several speeds, enabling riders of varying abilities and sizes to obtain an optimum set-up and traction over both very bumpy and more undulating terrain.

Equipment customised for tough racing.

Two different engine maps (accessory) for distinctly progressive or very aggressive power delivery cater to the varying requirements of race tracks. The rider is able to select the two maps quickly and safely using the switch cluster (accessory) on the left handlebar.

With a view to further enhancing the bike’s race capabilities, the installation of the new fuel injection system made it possible to dispense with the hot-start device. The engine housing has been fitted with a new magnetic oil drain plug for catching metallic debris.

The handlebar pad that offers the rider effective protection in the event of a collision is another new equipment feature. The new black grips are already bonded to the handlebar to prevent any undesirable twisting. New, more durable decals are designed to cope with the rigours of motocross, as is the reinforced, extra robust radiator.

5. Further model-specific modifications for 2013.

The wealth of modifications incorporated into the
Husqvarna TE 250 R/ TE 310 R competition enduro and
TXC 250 R/ TXC 310 R cross-country enduro models as well as the
TC 250 R competition motocross machine benefit the rest of the models in the Husqvarna Motorcycles off-road range, too.

The remaining models all feature the new colour scheme for 2013, as well as higher-quality decals designed to better cope with the tough demands of riding off-road. Apart from new black grips that are already bonded to the handlebar to prevent twisting, every model is now also equipped with a handlebar pad to provide effective protection for the rider’s chest and head in case of a collision.

The TE 449 and TE 511 have been specially equipped with a redesigned and repositioned activated charcoal filter system for the North American market, as required for homologation purposes. It is located on the side of the engine where it is well protected in the event of a fall. In North America, the TE 449 and TE 511 are both shod with competition, yet DOT-approved, street-legal tyres as standard, too.