The 250cc four-stroke motocross and enduro range from Husqvarna has seen major changes to both the design, chassis and engine, and is joined by the new TE 310.

TC 250
The improvements to the TC 250 have been confirmed at the European MX2 championship now underway, with Andrea Cervellin and Jernej Irt first and second respectively in the championship after five rounds.

The most important changes are to the engine, now fitted with a Mikuni battery less electronic fuel injection system and 45mm diameter throttle body. The major changes to the engine are to the cylinder head, with a new profile that has enabled an increase in power throughout the curve. The camshaft fuel intake line and exhaust are new, as well as the intake phasing.

The engine crankcase has been reinforced and now has steel sockets on chassis connections. The Akrapovic exhaust pipe has been specially designed by the manufacturer in Slovenia for Husqvarna and has a steel manifold, titanium silencer and steel heat protection.

Concerning the chassis parts the frame area below the engine cradle and near the footrests has been completely redesigned, with side plates of forged steel to reduce lateral bulk and increase resistance to strain. This effectively creates a single plate covering the footrest and brake pedal connections.

The cradle surface has been streamlined so as to reduce to a minimum any possible impact with the ground or other obstacles. The steering pipe area has also been improved and reinforced.

The engine guards are made of a new material, providing better protection against knocks.

The mirror-finish aluminium hubs are new, now with standard perforations.

The bodywork has new graphics on the tank area, with In Mould Plastic Decoration which is incorporated in the actual material, not applied afterwards.

TE 250
Antoine Meo and Matti Seistola have tested and ridden to victory the TE 250 in the first part of the Enduro World Championship. For the enduro version the most important changes concern chassis parts, as the 2010 version engine already had a Mikuni fuel injection system.

The chassis has been redesigned and reinforced at the specific request of the official CH Racing team, with a streamlined area below the cradle preventing knocks from uneven surfaces.

The area around the footrest connections and rear brake pump connections has been improved to reduce contact with the heel and to facilitate movement by the rider on the pedals. A single plate covers the footrest and rear brake pump/pedal connections. The suspension has been optimised.

In order to better facing the longest and most extreme enduro trials the fuel tank capacity has been increased to 8.5 litres. The tank has a new pump which enables 100% exploitation of fuel available.

The air box has been redesigned to better hold the filter sponge and improve resistance to water.

The engine guards are made of a new material, providing better protection against knocks.

The mirror-finish aluminium hubs are new, now with standard perforations.

The bodywork has new graphics on the tank side panels, with In Mould Plastic Decoration which is incorporated in the actual material, not applied afterwards.

The design and look of hand guards included in the kit are also new.

The engine has been redesigned, improving power at low revs thanks to the ability to choose between 2 different CDI maps configuration through handlebar switch – for hard or soft ground, depending on the style of riding and condition of the track.

The layout of radiator hoses is new, as well as the position of the exhaust silencer now with new db killer and heat protection

TE 310
The new TE 310 uses the lightest engine in the 250cc four-stroke category that’s featured in the 250s, boosted to 302.44cc thanks to an increase in bore and stroke – now 82 x 57.3mm.

The throttle body is the same as that on the TC 250 – a Mikuni 45 mm diameter. The exhaust system is specially designed for the 310 model and as in the other models has a new heat protection on the silencer. The bike is much lighter than the previous version (-6 kg) and comes with significantly higher torque and power.

Otherwise the bike has the same features as the TE 250, with the new reinforced chassis, new Grimeca hubs, Kayaba 48mm front forks and Sachs shock absorber with new settings, 8.5 litre fuel tank, new hand guards and new bodywork graphics.