TC 125

01. Faster and wiser

DS Clutch

The diaphragm steel (DS) clutch fitted to the TC 125 features a unique design where a single diaphragm steel pressure plate is used instead of traditional coil springs. Housed inside a CNC machined steel basket, the overall clutch design is highly durable and contributes to the compact layout of the engine.

Engine

The TC 125 engine sets the standard for performance in the highly competitive 125cc class and weighs in at just 17.9kg. The lightweight engine is manufactured using the latest engineering techniques to produce more torque while retaining its high-revving 2-stroke character. With the rotating mass inside the engine centralised, the TC 125 offers light and agile handling to the benefit of both beginners and professional racers.

Cylinder

The cylinder features a 54 mm bore and as the TC 125 is fuelled via electronic fuel injection (EFI), the powervalve is replaced with an innovative electronic exhaust control system. Using an actuator, the lateral exhaust port and main exhaust port open simultaneously for maximum power delivery.

Crankshaft

The lightweight crankshaft improves throttle response and reduces vibration to a minimum. The component is precisely positioned to ensure rotational mass has very little effect on the overall handling of the motorcycle.

Crankcases

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 optimise mass centralisation. Symmetrical engine mounts aid handling by contributing to the flex characteristics of the chassis. Internally all engine components are positioned to achieve an ideal centre of gravity.

Gearbox

The 6-speed gearbox is manufactured exclusively by Pankl Racing Systems and ensures the highest level of durability and reliability. The shift drum and shift fork improve overall leverage for significantly smoother and more precise shifting. A special gear lever tip design prevents dirt build-up for positive gear changes in all conditions.

DS Clutch

Engine

Engine

Cylinder

Crankshaft

Crankcases

Gearbox

DS Clutch

02. Ride easier

Swingarm

The hollow die-cast aluminium swingarm is manufactured from a single piece of aluminium using an improved die-cast production process for optimal stiffness and a 190 g weight reduction over previous generations. In order to optimise and match the flex characteristics from the frame, a 22 mm rear axle is fitted. Additionally, the chain guard and chain slider have been designed for improved durability and are less prone to catching on external objects.

Chromium molybdenum frame

The proven chromium molybdenum steel frame is second to none. The shock mounting, which is no longer connected to the main tube, significantly improves the anti-squat behaviour of the chassis. With optimised wall thickness in high stress areas improving reliability, the frame continues to offer advanced geometries and flex characteristics aimed at providing unparalleled rider feedback, energy absorption, and exceptional straight-line stability. The frame is finished off in a premium metallic blue powder coating with standard frame protectors offering superior protection, durability, and grip in any condition. Additionally, the inclusion of forged brackets on the lower frame rails allows for easy installation of the skid plate, which is available as a Technical Accessory.

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 significantly improved 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

Working in unison with the frame design and suspension set-up, the CNC-machined triple clamps endure precisely calculated geometry for increased 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.

WP XACT front suspension

New shim stack settings improve the overall balance, cornering agility, and riding comfort on the TC 125 for 2024. The 48 mm WP XACT forks are designed as a closed cartridge system with a capsulated, adjustable air spring and pressurized oil chamber for smooth action and consistent damping. Oil and air bypasses reduce pressure peaks and in combination with a mid-valve damping system, together with a hydrostop that applies a progressive damping force in the last 40 mm of travel, the forks provide precise feedback to the rider. The settings are easily adjusted via the single air pressure pre-load valve, as well as through easy access click adjusters for compression and rebound. Additionally, the air pump needed to adjust the fork's air spring pressure is provided as standard.

WP XACT shock absorber

The WP XACT rear shock offers 293 mm of travel. Inside the shock is a computational fluid dynamics (CFD) optimised main piston for improved initial comfort, which provides strong hold-up in all conditions. Differently sized holes in the shims, which feature updated stack settings for 2024 to improve balance and handling, allow them to open more easily, which reduces the overall stress of the oil flow. Complete with low friction SKF seals that are fitted throughout the linkage system, consistent damping, comfort, and traction are guaranteed with rebound and both high and low speed compression adjustable by hand.

Swingarm

Chromium molybdenum frame

Chromium molybdenum frame

Polyamide-reinforced aluminium subframe

Triple clamps

WP XACT front suspension

WP XACT shock absorber

Swingarm

03. Effortless ergonomics

Footrests

The CFD-designed footrests are extra wide to ensure better control of the machine while at the same time are less susceptible to catching on deep ruts, take-offs when scrubbing, and trackside barriers. This is achieved by a narrower mounting design in the frame layout, which also helps reduce overall weight.

Functional bodywork

Clean, Swedish-inspired styling and ergonomics are designed to allow riders to perform at their very best for extended periods of time. Following countless hours of testing and refinements, the contact points and surfaces in the rider triangle enhance comfort, which in turn helps to reduce fatigue. A flat seat offers unrestricted movement with a high grip cover ensuring riders stay firmly in place under hard acceleration.

Airbox

Designed with precisely positioned inlet ducts aimed at reducing drag and air flow deformation, the airbox ensures unrestricted airflow with maximum filter protection. 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 system.

Hydraulic brakes

The highest level of quality is guaranteed as the class-leading Brembo brake callipers 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 Motorcycles 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.

Footrests

Functional bodywork

Functional bodywork

Airbox

Hydraulic clutch

Hydraulic brakes

ProTaper handlebar

ODI grips

Footrests

04. Master your art

Fuel tank

A 7.2 litre fuel tank integrates neatly with the ergonomic bodywork. The fuel pump design and location allows the tank to be emptied further, which is particularly beneficial for longer races. For improved durability, the external fuel line is specifically routed to make it less exposed and susceptible to damage.

Wheels and tyres

Assembled with CNC-machined hubs, lightweight spokes, and strong, black-anodised alloy rims by D.I.D, the wheels of the TC 125 are then fitted with Dunlop Geomax MX33 Motocross tyres, which feature a proven block-within-a-block design for more progressive cornering and superior grip. For improved on-track agility, the 100/90-19 rear tyre and 80/100-21 front tyre ensures optimal handling on a variety of riding surfaces.

Exhaust system

Tailored specifically to the TC 125 engine using an innovative 3D design process, the exhaust pipe ensures maximum power across the rev range. The silencer is easily mounted using an aluminium bracket for strength at the lowest possible weight, with an advanced internal construction ensuring Excellent noise damping without sacrificing performance.

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

Wheels and tyres

Wheels and tyres

Exhaust system

Cooling system

Fuel tank

05. Technologically advanced

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 TC 125 brings many benefits. The ECU constantly analyses the running condition of the engine and guarantees to deliver 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 (white) is designed for hard pack while Map 2 (green) is more aggressive and suited to sand and heavier track conditions. Additionally, a redesigned reed valve system improves intake tract sealing and prevents excess fuel building up, which would lead to rich running of the engine in extreme up or downhill sections.

E-Start

To ensure fast starting in all conditions, the TC 125 features a highly reliable electric start. The system removes the need for a kickstart completely and the additional space created above the engine is used to house the EFI and electronic exhaust control. With the 12.8V 2 Ah Lithium-Ion battery located under the seat and close to the centre of gravity, the handling of the TC 125 is uncompromised. The engine is easily started and stopped via the same handlebar-mounted switch for improved ease of use.

Map switch

The electronic fuel injection (EFI) on the TC 125 offers two engine maps to suit different track conditions. Map 1 (white) is designed for hard pack and slippery tracks as it delivers linear, predictable power. Map 2 (green) is richer and designed for sand and heavy track conditions to ensure maximum performance and reliability. Riders can easily engage either map by pressing a button on the handlebar-mounted Map Select Switch.

EMS

The engine management system (EMS) is designed to be small, light, and fast at processing data. It incorporates a Rollover Sensor (ROS) that cuts the ignition and shuts off the engine in the event of a severe crash for an additional layer of safety.

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 getting low.

Start/stop switch

EFI

EFI

E-Start

Map switch

EMS

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 getting low.

Start/stop switch

01. Faster and wiser

DS Clutch

Engine

Cylinder

Crankshaft

Crankcases

Gearbox

DS Clutch

Engine

Engine

Cylinder

Crankshaft

Crankcases

Gearbox

DS Clutch

02. Ride easier

Swingarm

Chromium molybdenum frame

Polyamide-reinforced aluminium subframe

Triple clamps

WP XACT front suspension

WP XACT shock absorber

Swingarm

Chromium molybdenum frame

Chromium molybdenum frame

Polyamide-reinforced aluminium subframe

Triple clamps

WP XACT front suspension

WP XACT shock absorber

Swingarm

03. Effortless ergonomics

Footrests

Functional bodywork

Airbox

Hydraulic clutch

Hydraulic brakes

ProTaper handlebar

ODI grips

Footrests

Functional bodywork

Functional bodywork

Airbox

Hydraulic clutch

Hydraulic brakes

ProTaper handlebar

ODI grips

Footrests

04. Master your art

Fuel tank

Wheels and tyres

Exhaust system

Cooling system

Fuel tank

Wheels and tyres

Wheels and tyres

Exhaust system

Cooling system

Fuel tank

05. Technologically advanced

Start/stop switch

EFI

E-Start

Map switch

EMS

Hour meter

Start/stop switch

EFI

EFI

E-Start

Map switch

EMS

Hour meter

Start/stop switch

Technical Details

Engine

Chassis