Back in May, DirtBikes.com reported on the release of Husqvarna’s paradigm-shifting 2018 Husqvarna TE 250i. Now Husqvarna has issued more detailed on the TE 250i and (Europe-only) TE 300i as well as announcing changes to the rest of the 2018 Husqvarna Enduro model family. Here is what the company has to say:
Enjoying over 100 years of uninterrupted manufacturing while developing some of the world’s first offroad production machines, Husqvarna are true enduro pioneers. A dominant force in international competition since the late ‘60s, Husqvarna has always been a great advocate of two-stroke technology.
Adding to their long list of ground-breaking innovations, for model year 2018 Husqvarna Motorcycles introduce their next generation fuel-injected 2-stroke TE 250i and TE 300i machines. Together with an extended list of refinements designed to further improve the performance of all TE models, the all-new 2-strokes feature revolutionary technology in the offroad competition segment. The pioneering electronic fuel injection system offers unprecedented advantages in terms of performance, rideability, fuel consumption and ease of use. The introduction of this new technology by Husqvarna Motorcycles is a bold new step into the future of offroad motorcycling.
Two-Stroke Electronic Fuel Injection System
Engine Management System (EMS)
The EMS features a new electronic control unit (ECU) that is responsible for a number of functions. Gathering information from the throttle position sensor, the ambient air and intake pressure sensors and the crankcase pressure and water temperature sensors, it automatically compensates for temperature and altitude changes eliminating the need to modify carburettor jetting. A standard map select switch allows riders to customise power characteristics according to personal preference or in varying conditions.
Throttle Body
Both models feature a 39 mm Dell´ Orto throttle body that is linked to the new dual cable handlebar throttle assembly. With a new throttle position sensor (TPS) relaying airflow data to the ECU, the system ensures optimal air, fuel and oil mixture. Additionally, the system features a bypass screw for idling speed regulation, with a cold start device providing more air for cold starts.
Oil Tank & Oil Pump
Vital for crankshaft, cylinder and piston lubrication, the two-stroke oil is stored in a separate tank that together with an electronic oil pump eliminate the need for pre-mixing. With its filler tube running through the upper frame, the 0.7 liter tank contains oil for five full tanks of fuel depending on riding conditions. Controlled by the EMS, the oil pump delivers the ideal amount of oil according to the current RPM and engine load reducing waste as well as excessive smoke from the exhaust. The average ratio achieved for fuel/oil is 80:1.
Fuel Tank
The two models feature a fuel tank made of translucent plastic so the fuel level can be checked quickly and easily. The fuel tank has a 9.25 litre capacity and houses an integrated fuel pump and fuel level sensor.
What Else Is New?
Ideally combining the most advanced engine technology with a series of specific chassis upgrades, Husqvarna Motorcycles’ engineers have ensured that the all-new TE 250i/300i and all other 2-stroke and 4-stroke machines will continue setting the benchmark in terms of handling, power, weight and aesthetics.
WP Xplor 48 Front Fork´s Outer Tubes and Settings
Developed by WP Performance System the front forks are specifically designed for enduro riding. They consist of an open cartridge layout with a spring in each leg and split damping functions. Compression (left) and rebound (right) can be adjusted via clickers situated on top of each tube. Fork pre-load can also be modified without the use of tools, via the standard adjuster. For MY18, the forks feature new outer tubes offering improved flex characteristics and reduced friction. A stiffer setting also provides extra sensitivity and improved bottoming resistance.
Magura Brakes
New for MY18 is the Magura front and rear braking system. Featuring a similar layout to the previous design (2 piston front & 1 piston rear), the system features optimal sensitivity and a progressive feel while delivering the highest level of performance. The diameter of the brake disks is 260mm for the front and 220mm on the rear.
ProTaper Handlebar
Second to none in terms of functionality and style, the new ProTaper handlebar features class-leading fatigue resistance while adding minimal weight. The ProTaper logos are chemically applied and are scratch and peel resistant.
Airbox
With its unique design ensuring maximum airflow and filter protection, the TE 250i/300i airbox features a new intake snorkel that is adapted to the new throttle body and holds the air temperature sensor. Air filter access remains tool-less, with the standard Twin Air filter and fail proof filter cage ensuring maximum performance and ease of maintenance.
Frame
The hydro-formed, laser-cut and robot-welded frame is expertly crafted by WP Performance Systems. The flex characteristics are specifically tailored to benefit suspension functionality, handling and comfort. For superior protection, the frame is also fitted with frame guards and an engine protector that bolts directly to the frame.
Composite Carbon Fiber Subframe
Unique to Husqvarna Motorcycles, the composite subframe showcases pioneering technology and innovation. This 3-piece component is made of 30% carbon fiber, which makes it remarkably light (1.4 kg). Specific care is taken to create a calculated rigidity for optimal handling and rider ergonomics.
Swingarm
The hollow, cast aluminum swingarm is designed to offer optimal stiffness and reliability at the minimum possible weight. The machining above the rear axle allows the chain adjuster markings to be seen from above for easy maintenance.
CNC-Machined Triple Clamps
The 22mm offset black-anodized CNC machined triple clamps ensure premium quality as standard on all Husqvarna enduro models. Expertly crafted using superior techniques and materials to provide high levels of quality and reliability. A 2-way handlebar adjustment comes as standard allowing for customized ergonomics.
WP Rear Shock
The WP DCC rear shock is designed to provide advanced damping characteristics, while keeping a compact and lightweight design. With a pressure balance inside the shock the action of the stroke becomes effortless, resulting in greater rider comfort and handling. Additionally, the corrugated outer contours of the reservoir increase cooling. The component is fully adjustable and matched to a linkage system with a specific geometry to deliver the best possible traction and absorption.
Footpeg Mount
The Husqvarna frame features a clever, self-cleaning footpeg mount that prevents the build-up of dirt collected through deep ruts or muddy terrain. As a result, the footpeg will spring back into their original position ensuring perfect control. The large aluminum footpegs have an enduro-specific grip pattern. Positioned 6mm higher than on the MX models they provide increased ground clearance.
Magura Hydraulic Clutch
The reliable, high quality, German-made clutch system guarantees even wear, near maintenance-free operation and perfect action in every condition.
Clutch play is constantly compensated so that the pressure point and function of the clutch remains identical in cold and hot conditions, as well as over time.
ODI Grips & Throttle Assembly
The ODI lock-on grip on the left side does not require gluing, while on the right, the vulcanised grip features an integrated throttle mechanism. The assembly has easy free-play adjustment and by changing the throttle cam, throttle progression can be tailored to rider preferences.
Exhaust System
The exhaust systems are expertly designed to deliver the best possible performance while adhering to strict FIM noise limits. The mufflers are crafted from lightweight and strong aluminium to reduce weight and are positioned closely to the centre of gravity to improve handling. The header pipes are specifically designed to match specific engine characteristics, delivering top level performance while keeping weight to a minimum.
Electric Start & Li-Ion Battery
The 2018 Husqvarna Enduro model range (except TX 125 model) feature a standard electric starter. The system uses a compact Li-Ion battery which is 1 kg lighter than a conventional battery.
Integrated Cooling System
The radiators are expertly crafted by WP Performance Systems using high strength aluminium. CFD (computational fluid dynamics) is used to channel air through the radiators efficiently and provide optimal cooling in all conditions. The cooling system is integrated into the frame increasing heat dissipation while eliminating the need for additional hoses. Protecting against debris the radiator protectors also act as a brace diverting energy from an impact around the radiator and into the frame.
Wheels & Tires
Black high-strength alloy rims by D.I.D are coupled to CNC-machined hubs using lightweight spokes and silver anodised aluminum nipples. Husqvarna Motorcycles’ enduro range features Metzeler 6 Days Extreme tires. The FIM approved tires provide advanced grip in a wide variety of conditions
Bodywork
Distinctive and futuristic bodywork, with striking pearl blue and electric yellow graphics stylishly adorn the Swedish inspired design. The advanced ergonomics provide superior comfort and control allowing riders to perform at their peak for extended periods of time.
2018 Husqvarna TE 250i/TE 300i
Engine
The 250cc and 300cc two-stroke engines set the benchmark for unrivaled power and lightweight construction. The engines feature precisely positioned shaft arrangements for optimal mass centralization, a counterbalancer shaft to reduce vibrations, a twin-valve controlled power valve and a six-speed enduro gearbox.
Cylinder
For MY18 two inlet positions are located on the transfer ports at the rear of the cylinder where a pair fuel injectors are mounted. The injectors deliver the fuel downwards into the transfer ports, which guarantees excellent atomisation with the air travelling upward to the combustion chamber. This ensures a more efficient burn of the air/fuel mixture resulting in reduced fuel consumption and emissions.
The 66.4mm (TE 250i) and 72mm (TE 300i) bore cylinders feature twin valve controlled power valve systems, which deliver smooth and controlled power throughout the RPM range. For different conditions and rider preference, alterations to the power delivery can be made by simply changing between the three supplied springs.
Piston
The lightweight piston is perfectly matched to each cylinder transmitting minimal oscillating mass and ensuring high levels of reliability and performance.
Engine Casings
Both engines are designed to improve mass centralization. As a result, the lightweight, die-cast engine casings are developed to accommodate the shaft arrangements in the ideal position, centralizing oscillating mass and improving rideability. Additionally, the counterbalancer shafts are integrated in a very compact manner having little effect on the overall design.
Counterbalancer Shaft
The engines house a laterally mounted counter balancer shaft. The balancer significantly reduces vibration resulting in a smoother and more comfortable ride.
Crankshaft
The crankshafts feature a 72 mm stroke and are balanced in conjunction with the counterbalancer shaft for minimum vibration. By incorporating a heavier ignition rotor, the crankshafts produce more inertia than on the TC 250 MX model, which improves control in the lower RPM range.
Gearbox
A six-speed gearbox features enduro specific ratios with an innovative shift lever reducing dirt build up and guaranteeing easy operation in all conditions.
Clutch
The TE 250i and TE 300i feature a DDS (damped diaphragm steel) clutch. The clutch uses a single diaphragm spring instead of the more common coil spring design, resulting in a much lighter clutch action. This design also incorporates a damping system that increases both traction and durability. Assisted by the Magura hydraulic clutch, the system provides a light and modular feeling, which is almost maintenance and adjustment free.
Starter
Both models are fitted with an electric starter located below the engine ensuring the system remains well protected. Additionally, the system is linked to a lightweight and powerful Li-Ion battery for reliable starting.
2018 Husqvarna TX 125/(TE 150 USA)
Engine
The TX 125 and TE 150 USA engines have an advanced construction featuring the latest in 2-stroke technology. As a result, both engines are powerful, light and very compact. Additionally, the engines are designed to centralise mass, providing outstanding ride-ability and minimal rider fatigue.
Cylinder & Piston
The cylinder features a 54mm bore (58mm bore for the TE 150 USA) with an innovative power valve design that delivers class leading power and torque. The piston is designed to perfectly match the cylinder layout offering premium reliability.
Crankshaft
With both models featuring 54.5 mm of stroke, the crankshaft is perfectly balanced and delivers more inertia compared to the TC 125 design thanks to a heavier ignition rotor which provides more controllable low end power.
Crankcases
High-pressure die cast production processes result in a thin wall thickness and a low overall weight for both engines. The shaft arrangements are located in the ideal position reducing the effect of oscillating mass for more precise handling. The historical Husqvarna logo adorns the bronze finished crankcase covers.
Starter
The design of the TX 125 engine allows for the optional fitment of an electric starter. The starter will be available in a Husqvarna accessories kit and include all the necessary equipment needed to make the modification. As for the TE 150, the model comes with both kick and electric starter as standard. The weight of the system is kept to a minimum using a lightweight Li-Ion battery which is 1kg lighter than a conventional battery of the same size.
Carburetor
The TX 125 and TE 150 feature a 38 mm flat slide Mikuni TMX carburettor. With an updated setting for MY18, the carburettor provides a smooth and controllable power delivery with optimal performance over the entire RPM range.
Gearbox
Both models are fitted with a 6-speed wide range gearbox. The enduro specific ratios are tailored to the exact power characteristics of the two machines, while an innovative gear level reduces dirt build up ensuring perfect operation in all conditions.
Magura Clutch
The reliable, high quality, German-made clutch system guarantees even wear, near maintenance-free operation and perfect modulation in every condition. Meaning that play is constantly compensated so that the pressure point and function of the clutch remain identical in cold or hot conditions, as well as over time.
2018 Husqvarna FE 250/FE 350
Engine
The engines featured in both models are second to none in terms of their overall performance and versatility. All their major components and shaft arrangements have been carefully positioned to suit the performance and handling characteristics of each model. Weighing just 27.6 kg, the FE 250 engine has a quite torquey nature that makes the bike accessible for both professionals and amateurs. As for the FE 350 engine, it delivers a significant boost of power and torque offering 450-rivalling power.
Map Switch & Traction Control
The Husqvarna Enduro four-stroke model range features a standard mounted handlebar map switch and an advanced traction control feature. The system is able to analyze the throttle input from the rider and the rate at which RPM increases in the engine. If the RPM increases too fast, the ECU will register a loss of grip and reduce the amount of power to the rear wheel to ensure maximum traction in all conditions.
Cylinder Head
The DOHC design features polished camshafts with DLC coated finger followers transmitting minimal friction and improving overall performance. Added to the design are lightweight titanium valves (32.5mm intake & 26.5mm exhaust for the FE 250, 36.3mm intake & 29.1mm exhaust for the FE 350).
Cylinder & Piston
The cylinder features a lightweight forged bridged-box-type piston by CP. As a result, the low oscillating masses deliver exceptional power, high revs and a very wide powerband. The compression ratio is 12.8:1 for the FE 250 and 12.3:1 for the FE 350.
Crankshaft
The plain big end bearing features two force-fitted bearing shells ensuring maximum reliability and durability, guaranteeing long service intervals of 135 hours.
Counterbalancer Shaft
In order to counteract the rotational force of the crankshaft and reduce vibration, both engines use multifunctional counter balancer shafts that also drive the water pumps and timing chains.
Crankcases
Both engines are designed to be compact while centralizing rotating masses. As a result, the crankcases are engineered to house the shaft arrangements at the ideal centre of gravity. The casings are manufactured using a high-pressure die cast production process, resulting in thin wall thickness while retaining exceptional reliability. The iconic Husqvarna logo adorns the bronze finished crankcase covers.
Gearbox
Both models feature a 6-speed gearbox with specific wide-range enduro type gearing. The shifting fork uses a special low friction coating to ensure smooth and precise shifting while a gear sensor allows the EMS to select a specific engine map for each gear. Additionally, a no-dirt gear lever prevents dirt build up allowing the mechanism to spring back into place and guarantee perfect control in all conditions.
DDS Clutch
The two engines feature DDS (Dampened Diaphragm Steel) clutches. The exclusive characteristics of this system include a single diaphragm steel pressure plate instead of traditional coil springs making the clutch pull very light while the integrated damping system improves traction and durability. The clutch basket is a single-piece CNC machined steel component that allows the use of thin steel liners and contributes to the compact design of the engine. The Magura hydraulic system ensures perfect modulation in all conditions.
2018 Husqvarna FE 450/FE 501
Engine
Combining low weight with a compact design, the FE 450 and FE 501 engines feature the latest technology available offering unequalled performance, ride-ability and reliability. Additionally, both engines are suited specifically for enduro type riding with a standard electric start, 6 speed wide ratio gearbox and an array of electronic rider aids.
Map Switch & Traction Control
The Husqvarna Enduro 4-stroke model range features a standard mounted handlebar map switch and an advanced traction control feature. The system is able to analyse the throttle input from the rider and the rate at which RPM increases in the engine. If the RPM increases too fast, the ECU will register a loss of grip and reduce the amount of power to the rear wheel to ensure maximum traction in all conditions.
Cylinder Head
The compact SOHC cylinder head on both engines offers maximum performance at the minimum possible weight. The camshaft actuates four lightweight valves (titanium intake Ø=40 mm 32,6 g, steel exhaust Ø=33 mm 42,6 g) through a robust rocker arm system.
Cylinder & Piston
The lightweight aluminium cylinder features a 95 mm bore housing a lightweight Konig bridge-box-type piston. This combination produces very little oscillating mass significantly reducing vibration and increasing rider comfort. The compression ratio is 11.8:1 for both models.
Crankshaft
A plain big end bearing comprising of two force-fitted bearing shells ensure maximum reliability and durability, guaranteeing long service intervals of 135 hours.
Counterbalancer Shaft
In order to counteract the rotational force of the crankshaft and reduce vibration, both engines use multi-functional counterbalancer shafts that also drive the water pumps.
Crankcases
The crankcases are designed to house the shaft arrangements and internals of the engine in the best possible position, centralising masses for a lightweight handling feel. High-pressure die cast production processes result in a thin but reliable wall thickness and keep weight to a minimum.
Gearbox
The lightweight six-speed gearboxes ensure smooth and precise shifting thanks to a low friction coating on the shifting fork. The gear lever features a design that prevents dirt build-up and keeps the lever tip in its original position even in the toughest conditions while a gear sensor allows for specific engine maps in each gear.
DDS Clutch
Both engines feature DDS (Dampened Diaphragm Steel) clutches. The exclusive characteristics of this system include a single diaphragm steel pressure plate instead of traditional coil springs making the clutch pull very light while the integrated damping system guarantees optimal traction and durability. The clutch baskets are single-piece CNC machined steel components that allow the use of thin steel liners and contribute to the compact design of the engines. The Magura hydraulic systems ensure perfect modulation in all conditions.
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