TX 300 Heritage

Pure agility

Multiple technical updates for 2025 ensure the versatile TX 300 Heritage maintains its place at the head of its class. A new, lighter frame is engineered to improve handling, especially when entering corners, without sacrificing straight-line stability. Accompanying the new chassis are revised settings to the WP suspension, which help maintain maximum comfort and traction across the roughest terrain. The compact, 300 cc 2-stroke engine retains its electronic exhaust control for instant power delivery in every gear. Inside the engine, all components are positioned to centralise rotating mass, which plays a vital role in the outstanding agility that the TX 300 is known for. Movement on the motorcycle remains unrestrictive thanks to the slightly taller and wider seat with the ergonomic bodywork and new radiator shrouds complete with distinctive, Swedish-inspired graphics.

Gearbox:
The damped diaphragm steel (DDS) clutch fitted to the TX 300 Heritage model is unique as a single diaphragm steel pressure plate is utilised instead of traditional coil springs. Housed inside a CNC machined steel basket, the overall clutch design contributes to the compact engine layout and features aThe 6-speed gearbox is manufactured exclusively by Pankl Racing Systems and ensures the highest level of durability and reliability. In addition, the gear lever tip design provides optimised leverage and prevents dirt build-up, even in the toughest conditions. damping system for maximum traction and durability.

Engine:
The engine is at the pinnacle of 2-stroke performance and weighs just 23.9 kg. Expertly assembled with the latest technical innovations, the TX 300 Heritage model features electronic fuel injection (EFI) and an electronic exhaust control for lower running costs and assured reliability. Configured with no separate oil tank, pre-mixed fuel is required, which is identical to the motocross models. A proven e-start adds to the simplicity of this popular model and guarantees fast starting in all conditions.

Cylinder:
With Electronic Fuel Injection (EFI) as standard on the TX 300 Heritage model, a traditional powervalve is replaced with an electronic exhaust control system. This highly innovative technology manages the opening of the lateral exhaust ports before the main exhaust ports open to deliver strong, controllable power. The upper contour of the exhaust port features a machined finish for unrivalled performance.

Crankcase:
High-pressure die cast production processes allow for the crankcases to be manufactured with a thinner wall thickness to keep the overall weight to a minimum and to position the shaft arrangements perfectly for optimised mass centralisation. This clever design aids the overall balance and agility of the TX 300 Heritage machine while the symmetrical engine mounts enhance the flex characteristics of the chassis.

Crankshaft:
Designed with weight reduction and performance in mind, the crankshaft inside the TX 300 engine improves throttle response and contributes to the lightweight feel of the motorcycle. The perfect balance of rotating masses is achieved by balancing the weights of the crankshaft flywheel and the rotor, and thanks to the innovative counter balancer shaft, engine vibration is kept to an absolute minimum.

Counter balancer shaft:
The TX 300 Heritage model features an innovative, laterally mounted counter balancer shaft. This shaft significantly reduces engine vibration, resulting in a smoother and more comfortable ride.

DDS clutch:
The damped diaphragm steel (DDS) clutch fitted to the TX 300 Heritage model is unique as a single diaphragm steel pressure plate is utilised instead of traditional coil springs. Housed inside a CNC machined steel basket, the overall clutch design contributes to the compact engine layout and features a damping system for maximum traction and durability.

Swingarm:
The swingarm is manufactured using a die-cast production process for optimal rigidity. To optimise and match the flex characteristics of the chassis, a 22 mm rear axle is utilised. Additionally, the chain slider is exceptionally durable while the chain guide is manufactured with a rounded profile to ensure it is less prone to catching on external objects.

Frame:
All Heritage models benefit from an advanced frame that is engineered with specific wall thicknesses in high stress areas for strength and a calculated level of flex. Overall, the chassis offers exceptional cornering agility, unparalleled rider feedback, energy absorption, and confidence-inspiring straight-line stability. The frame is finished with a premium white powder coating, unique to the Heritage models, with frame protectors offering superior protection, durability, and grip in any condition.

Polyamide-reinforced aluminium subframe:
Made from 60% polyamide and 40% aluminium, the two-piece subframe ensures exceptional strength and durability at an overall weight of just 1.8 kg. The lower subframe spars and frame mounts are manufactured from cast aluminium for maximum reliability. The upper section of the subframe is made from injection-moulded polyamide to enable specific flex characteristics and ensure a lightweight construction.

Triple clamps:
Made from 60% polyamide and 40% aluminium, the two-piece subframe ensures exceptional strength and durability at an overall weight of just 1.8 kg. The lower subframe spars and frame mounts are manufactured from cast aluminium for maximum reliability. The upper section of the subframe is made from injection-moulded polyamide to enable specific flex charaWorking in unison with the frame design and suspension set-up, the CNC-machined triple clamps ensure precisely calculated geometry for assured stability. Handlebar flex can be customised with the handlebar clamp, which offers two mounting options – rubber-damped for less vibration, or fixed for enhanced front-end feedback. The upper triple clamp is stiffer to ensure a smoother fork action and plays a vital role in the perfect alignment of the front wheel for superior handling.teristics and ensure a lightweight construction.

WP XACT front suspension:
Rigorously tested by WP's research and development department, the 48 mm WP XACT closed cartridge spring forks fitted to the TX 300 Heritage model provide exceptional comfort. Inside the forks, mid-valve pistons optimise oil flow and prevent foaming for consistent and predictable damping at all times. A hydrostop, active in the final 68 mm of travel, reduces the impact of harsh and high-speed landings for continued straight line stability and forward momentum. Both the compression and rebound settings can be quickly adjusted by hand using the easy access clickers. Additionally, the pump needed to adjust the air spring pressure in the forks is provided with each Heritage machine.

WP XACT rear suspension:
Inside the WP XACT rear shock is a Computational Fluid Dynamics (CFD) optimised main piston for exceptional comfort with the overall design of the shock providing strong hold-up in all conditions. The linkage system features low-friction seals for unrestricted suspension performance with a lightweight bolt utilised to save weight. Rebound and high and low speed compression settings can be easily adjusted by hand to simplify any set-up changes.

Footrests:
The CFD-designed footrests are extra wide to ensure better control of the machine while at the same time they are less susceptible to catching on deep ruts, take-offs when scrubbing, and trackside barriers. This was achieved by the narrow mounting design in the frame layout.

Bodywork:
The bodywork has been designed to allow riders to perform at their very best for extended periods of time with the distinctive blue radiator shrouds unique to the Heritage models. Following countless hours of testing and refinements, the large contact points and surfaces in the rider triangle enhance comfort, which in turn helps to reduce fatigue. A flat seat profile allows for unrestricted movement while the blue, high-grip seat cover ensures riders stay firmly in place under hard acceleration.

Airbox:
A strong, one-piece airbox with optimised air intake tracts ensure an unrestricted flow of air for maximum power. The Twin Air filter is easily accessed without tools, by simply removing the left side panel for easy maintenance.

Hydraulic clutch:
The high-performance Brembo hydraulic clutch system guarantees even wear, near maintenance-free operation, and perfect action in every condition. With this hydraulic system, free 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. Countless hours of race-focused testing have proven the exceptional reliability of the high-quality, Italian-made Brembo hydraulic systems.

Hydraulic brakes:
The highest levels of quality and performance are guaranteed as the class leading Brembo brake calipers are made from single pieces of aluminium for exceptional strength at the lowest possible weight. Together with a 260 mm front and a 220 mm rear disc, which are designed to prevent mud build-up, superior stopping power and braking confidence is guaranteed in all conditions.

Protaper handlebar:
Developed between Husqvarna Mobility and leading handlebar manufacturer, ProTaper, the exclusive bend offers superior comfort, class-leading strength, and fatigue resistance at the lowest possible weight.

ODI grips:
ODI lock-on grips feature an innovative, integrated throttle mechanism and are installed without using glue. The throttle assembly offers easy free-play adjustment with the option to fit alternative cams for a personalised throttle action.

Exhaust system:
Tailored specifically to the engine using an innovative 3D design process, the header pipe ensures maximum power across the rev range. The muffler features an aluminium mounting bracket for strength at the lowest possible weight, with an advanced internal construction ensuring excellent noise damping without sacrificing performance.

Wheels and tyres:
CNC-machined hubs and high-strength alloy rims by EXCEL are finished in striking black. They feature laser engraved logos and are fitted with a DUNLOP GEOMAX MX33 tyre on the front and DUNLOP GEOMAX AT81 tyre on the rear which ensure progressive cornering and superior traction on a variety of terrain.

Cooling system:
Manufactured from high-strength aluminium, the radiators are designed using computational fluid dynamics (CFD) to channel air through them in the most effective way. A large centre tube through the frame reduces pressure at this point in the system for a consistent coolant flow while an internal thermostat further enhances reliability.

Fuel tank:
An 8.5 litre fuel tank integrates neatly with the ergonomic bodywork and features a strong rubber cushion beneath it to protect the white frame from wear. A one-piece fuel pump with integrated filter allows the tank to be emptied further for extended running times. For durability, the external fuel line is specifically routed to make it less exposed and susceptible to damage.

Start/stop switch:
The combined engine start/stop switch is located on the right side of the handlebar for easy, thumb-operated use. Not only simplifying the starting and stopping of the engine, but the removal of an additional stop only button from the handlebar reduces the risk of potential damage or activation in the event of a fall.

EFI:
The electronic fuel injection system on the TX 300 Heritage machine brings many benefits. The ECU from Vitesco constantly analyses the running condition of the engine and delivers the perfect air/fuel ratio at all times through the state-of-the-art 39 mm Keihin throttle body. EFI also introduces two different engine maps, which can easily be activated via the handlebar-mounted switch for a personalised riding experience. Map 1 is backlighted in white, while Map 2 is backlighted in green. Additionally, the reed valve system prevents excess fuel building up, which would lead to rich running of the engine in extreme up or downhill sections.

E-Start:
For guaranteed, easy starting in all conditions, the TX 300 Heritage model features highly reliable electric start technology with the system removing the need for a kickstart completely. The 12.8V 2 Ah Lithium-Ion battery is positioned neatly under the seat and close to the centre of gravity for uncompromised handling. Stopping of the engine is achieved via the same handlebar-mounted switch for improved ease of use and a simplified operation.

Map Select Switch:
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 that can be safely toggled between while riding, by simply pressing a button on the handlebar-mounted Map Select Switch. Map 1 (white) is the standard option, that delivers linear, predictable power, while map 2 (green) is more aggressive with improved throttle response and sharper, explosive power output.

EMS:
The new Engine Management System (EMS) is designed to be smaller and lighter while being faster at processing data. It incorporates a new rollover sensor (ROS) which cuts the ignition and shuts off the engine for safety in the event of a severe crash, adding another level of safety to the Husqvarna Motorcycles' new generation line-up.

Hour meter:
The hour meter comes with an integrated fuel level indicator, which is visible on the FI status LED, and warns the rider when the fuel level is becoming low.