Arguably the best combination of power and weight, the TE 250i engine is a longstanding favourite with enduro riders. While technological advancements mean the TE 250i features a pioneering fuel injection system, it remains a low maintenance workhorse of an engine. Additionally, the TE 250i engine has an advanced construction featuring shaft arrangements precisely positioned for greater mass centralisation, a counter balancer shaft reducing vibration and a twin-valve controlled power valve for smoother power delivery.
The 66.4 mm bore cylinder in the TE 250i features a twin valve-controlled power valve system which delivers smooth and controlled power throughout the RPM range. Exhaust port timing has been improved with the combination of an optimised, adjustable power valve drive. The cylinder also features two inlet positions at the rear of the cylinder where a pair of fuel injectors are mounted. This ensures efficient combustion resulting in reduced fuel consumption and emissions.
Designed for minimal weight, the die-cast crankcases on the TE 250i engine feature a thin-wall design. To centralise mass, the shaft arrangement has been precisely positioned to harness oscillating masses at the ideal centre of gravity. The counter balancer shaft is also specifically integrated, making for a compact design. Additionally, a new water pump casing improves cooling by optimising the flow of coolant.
Tailored specifically using an innovative 3D design process, the header pipe on the TE 250i offers further improvements in geometry and performance. This allows for improved ground clearance, while a corrugated surface makes the header pipe resistant to impact out on the trail. The muffler also features a new aluminium mounting bracket, new internals and less dense packing material for improved noise damping and weight saving.
The new chrome-moly steel frame is expertly crafted using laser-cut, robot-welded, hydro-formed tubes, ensuring the highest level of precision and quality. While retaining the advanced geometry of its predecessor, the engine is mounted 1° lower at the swingarm pivot improving rear wheel traction and feeling. It features an increase in longitudinal and torsional rigidity, for improved rider feedback, better energy absorption and increased stability. The cylinder head mountings are made of forged aluminium, further improving handling and comfort. The premium blue powder coated frame features standard frame protectors, providing extra durability.
INTEGRATED COOLING AND RADIATORS
The radiators are expertly crafted using high-strength aluminium with CFD (computational fluid dynamics) to channel air through the radiators more efficiently. The cooling system is intelligently integrated into the frame, eliminating the need for additional hoses. New for 2020 is a 4 mm larger centre tube running through the frame. This reduces pressure at this point, allowing for a more consistent coolant flow. Additionally, the new radiators are mounted 12 mm lower, closer to the centre of gravity for improved handling agility. An optional radiator fan can be fitted and is available in the Husqvarna accessories catalogue.
COMPOSITE CARBON FIBRE SUBFRAME
The carbon composite subframe is unique to Husqvarna Motorcycles and showcases pioneering technology and innovation. Using 70% polyamide and 30% carbon fiber, the new 2-piece subframe saves 250g for a total weight of just over 1 kg. Light, robust and now 50 mm longer, the new subframe delivers improved rigidity, handling and rider comfort.
OIL TANK AND PUMP
An electronic oil pump feeds vital 2-stroke oil into the engine. It is located just below the oil tank and feeds the oil via the throttle body, meaning the oil is only mixed with air at this stage. The pump is controlled by the EMS and delivers the optimal amount of oil according to the current RPM and engine load. The oil tank is connected to a filler hose which runs through the upper tube of the frame to a filler cap conveniently located for easy refills. The tank capacity is 0.7 l and is connected to a low-level sensor which illuminates when the tank needs refilling.
WP XPLOR FORK
The WP Xplor 48 front fork is designed specifically for enduro riding. Its open cartridge layout has a spring in each leg with split damping functions. Compression damping in the left leg and rebound damping in the right. Adjustment is via easy-to-access clickers (30 clicks) on the top of each fork leg. For 2020, the standard preload adjusters allow for easier adjustment without the use of tools. The fork’s updated mid-valve piston delivers more consistent damping, while a new setting allows the fork to operate higher in the stroke for improved rider feedback and bottoming resistance.
WP REAR SHOCK
Featuring a new main piston and updated base setting to match the new frame and front end, the WP XACT shock provides advanced damping characteristics to the new range. The compact and lightweight shock features a pressure balance inside, ensuring consistent damping and superior rider comfort. Using the same linkage progression found in the Husqvarna Motocross range, the rear end now sits lower, for improved control in extreme enduro conditions. The fully adjustable component delivers 300 mm rear wheel travel, as well as unrivalled traction, feeling and energy absorption.
MAGURA BRAKING SYSTEM
The Magura braking system is designed for high sensitivity, providing a modulated feel while delivering superior stopping power. GSK wave disks (260 mm disc front and 220 mm rear) complete the high-quality braking package for complete confidence.
The TE 250i features new bodywork which clearly showcases Husqvarna Motorcycles’ pioneering approach to off-road motorcycle design. The ergonomics are specifically tailored to deliver greater comfort and control. As a result of extensive testing, the contact points have been slimmed down, making shifting between riding positions easier and allowing the rider to flow with movement. Thanks to the improved packaging of the wiring harness, the new seat profile reduces the seat height by 10 mm and together with the new seat cover, delivering superior comfort and control in all conditions.
By using the MAP SELECT SWITCH, the engine characteristics can be tailored to modify the power delivery according to rider preference, conditions and terrain. It has two settings which can be toggled on the fly, namely, Map 1, for standard and full power and Map 2, for softer power and delayed ignition timing for terrain with less traction.
The TE 250i uses a 39 mm throttle body which regulates the amount of air entering the engine via a butterfly operated by dual throttle cables connected to a new handlebar throttle assembly. 2-stroke oil is mixed with the air and enters the engine to lubricate the crankshaft, cylinder & piston. Additionally, a throttle position sensor (TPS) relays airflow data to the ECU which in turn calculates the amount of oil and fuel delivered to the engine while a bypass screw regulates the idling speed and a cold start device opens a bypass providing more air for cold starts.
ELECTRIC START AND WIRING HARNESS
All TE models come standard with an electric starter. The system uses a compact and lightweight Li-Ion battery which is 1 kg lighter than a conventional battery. With several years of experience of developing and perfecting electric starting, the proven reliability on the 2020 models is second to none, ensuring a quick and seamless start in any condition. Additionally, for 2020, an optimised wiring harness improves the packaging and concentrates all needed electrical components into a common area below the seat for easy accessibility.
ENGINE MANAGEMENT SYSTEM
The TE 250i features an electronic control unit (ECU) which is responsible for a number of functions. The unit determines the ignition timing, the amount of fuel & oil injected into the cylinder and additionally, translates the information received from various sensors to adapt values and make corrections for automatic temperature and altitude compensation. This means the engine always runs at the optimum fuel/air mixture at any altitude.