| Model | Triumph TF 450-RC Edition (2025 model designation; also listed as 2026 by some dealers) |
| Year | 2026 (dealer listing; separate factory MY26 specification not confirmed) |
| Category | Motocross |
| Engine Type | Single-cylinder, liquid-cooled, SOHC, 4-valve, 4-stroke |
| Weight | 108.6 kg wet (TF 450-RC Edition published specification) |
| Displacement | 449.5 cc |
| Bore x Stroke | 95.0 x 63.4 mm |
| Compression Ratio | 13.1:1 |
| Fuel System | Dell'Orto electronic fuel injection throttle body with Athena engine management |
| Ignition | Athena ECU-controlled electronic ignition with Ricky Carmichael engine calibration, selectable engine maps, traction control and launch control |
| Spark Plug | |
| Spark Plug Gap | |
| Cooling System | Liquid-cooled with twin radiators and mechanically driven coolant pump; Triumph D2053 OAT premixed coolant specified in factory service literature |
| Starting System | Electric start |
| Transmission | 5-speed manual gearbox with electronic quickshifter for clutchless upshifts from second to fifth gear |
| Clutch | Steel wet multi-plate clutch with Belleville spring and hydraulic actuation; Triumph Racing Hinson clutch cover |
| Final Drive | Chain drive, 13-tooth front sprocket and 48-tooth rear sprocket |
| Overall Length | |
| Overall Width | 836 mm across handlebars |
| Overall Height | 1270 mm |
| Wheelbase | 1492 mm |
| Ground Clearance | |
| Seat Height | 960 mm |
| Fuel Capacity | 7.0 litres |
| Frame | Lightweight aluminium spine frame with fabricated aluminium swingarm |
| Front Tyre | 80/100-21; Dunlop Geomax MX34 fitted to original RC Edition test motorcycles | Tyre Size Guide |
| Rear Tyre | 110/90-19; Dunlop Geomax MX34 fitted to original RC Edition test motorcycles | Tyre Size Guide |
| Front Suspension | 48 mm KYB Air-Oil Separate (AOS) inverted closed-cartridge coil-spring forks with adjustable compression and rebound damping | Fork Oil Levels |
| Front Suspension Travel | 310 mm |
| Rear Suspension | KYB linkage-operated coil-spring monoshock with adjustable high-speed and low-speed compression damping and rebound damping |
| Rear Suspension Travel | 305 mm |
| Fork Oil | KYB 48 mm AOS fork suspension oil. Original TF 450-RC Edition testing documented 315 ml outer-chamber oil volume per fork leg, with an adjustment range of 290-365 ml using the standard springs. Inner-cartridge oil quantity and factory-approved lubricant grade require confirmation from the applicable workshop manual. |
| Front Brake | 260 mm hydraulic disc with Brembo floating twin-piston caliper, 24 mm pistons |
| Rear Brake | 220 mm hydraulic disc with Brembo floating single-piston caliper, 26 mm piston |
| Front Wheel Size | 21 x 1.60-inch D.I.D DirtStar aluminium spoked rim |
| Rear Wheel Size | 19 x 2.15-inch D.I.D DirtStar aluminium spoked rim |
| Fuel Type | Premium unleaded petrol meeting the octane requirements in the Triumph owner's handbook |
| Premix Information | Not applicable. Four-stroke engine with pressure-fed internal lubrication; do not add two-stroke oil to the petrol. |
| Gearbox Oil | Triumph Performance fully synthetic motorcycle engine oil recommended in the TF 450-RC Edition owner's handbook. Engine and gearbox share the engine lubrication system. Confirm the approved SAE viscosity, API/JASO classification and refill capacity against the applicable factory handbook before servicing. |
| Air Filter | Washable, reusable Twin Air oiled foam air-filter element with tool-free access |
| Service Notes | MODEL-YEAR VERIFICATION: Triumph officially introduced the TF 450-RC Edition as a 2025 model, with dealer deliveries beginning in February 2025. Some authorised dealer catalogues identify a TF 450-RC Edition as 2026, but a separate factory MY26 RC Edition specification or model-year redesign has not been independently confirmed. Triumph separately introduced the TF 450-X for MY26. The mechanical data on this page comes from the officially published TF 450-RC Edition specification and should not be interpreted as confirmation of a new 2026 version. Original specifications include a 449.5cc SOHC four-stroke engine, Athena electronic management, Dell'Orto fuel injection, five-speed gearbox, hydraulic Belleville-spring clutch, electric start and electronic quickshifter. Ricky Carmichael Edition equipment includes his signature engine calibration, ODI Podium Flight RC4 handlebars, Hinson clutch cover, XTrig holeshot device, front disc guard, gripper seat cover and standard Wi-Fi communication module for MX Tune Pro. Suspension travel is 310 mm front and 305 mm rear. Original factory specifications list 108.6 kg wet weight, 960 mm seat height and 7-litre fuel capacity. Confirm the motorcycle's VIN and model-year identification before ordering service parts. Verify spark plug type and gap, engine oil requirements, fork oil service quantities and maintenance intervals against the corresponding Triumph factory workshop documentation. |
The Triumph TF450-RC Edition represents a major milestone in the British manufacturer's motocross history. Introduced as a 2025 model, the motorcycle marked Triumph's first entry into the modern 450cc four-stroke motocross category. Developed in collaboration with seven-time AMA Supercross champion Ricky Carmichael, the RC Edition combines a purpose-built competition engine with premium chassis components and distinctive signature equipment. Some dealer catalogues also list the motorcycle under 2026, although Triumph's original factory designation remains MY25.
At the centre of the motorcycle is a 449.5cc liquid-cooled single-cylinder four-stroke engine using a single overhead camshaft, four valves and a 13.1:1 compression ratio. The 95 mm bore and 63.4 mm stroke reflect its high-performance motocross design. Premium internal components include a Konig forged aluminium piston and DelWest titanium valves. Electronic fuel injection is controlled by Athena engine management, with a Ricky Carmichael-specific engine calibration developed to deliver strong, controllable acceleration.
The five-speed transmission incorporates an electronic quickshifter allowing clutchless upshifts between second and fifth gears. A hydraulically actuated wet multi-plate clutch uses a Belleville spring arrangement, while the Triumph Racing Hinson clutch cover provides a visible connection with specialist racing equipment. Standard electronics also include selectable engine maps, traction control and launch control. Triumph's MX Tune Pro system allows further engine-management adjustments through its compatible communication equipment.
The TF450-RC Edition also carries several distinctive components selected with Ricky Carmichael's input. These include ODI Podium Flight RC4 signature handlebars, a gripper seat cover, front brake disc guard and XTrig holeshot device. The original motorcycle was presented with graphics incorporating Carmichael's famous number four, GOAT branding and Triumph's racing identity. These details differentiate the RC Edition from a conventional production motocross motorcycle.
Suspension equipment includes 48 mm KYB Air-Oil Separate closed-cartridge coil-spring forks and a linkage-operated KYB rear shock. The front suspension provides 310 mm of travel, while the rear offers 305 mm. Adjustable compression and rebound damping allow riders to adapt the motorcycle to different track conditions and skill levels. Owners can consult the MXOwners rear suspension setup and adjustment guide for general information about suspension tuning.
Braking equipment consists of Brembo hydraulic calipers and Galfer discs, with a 260 mm front rotor and 220 mm rear rotor. D.I.D DirtStar aluminium rims provide the foundation for the 21-inch front and 19-inch rear wheel combination. The lightweight aluminium spine frame and fabricated swingarm contribute to the motorcycle's handling characteristics, while the factory lists a wet weight of 108.6 kg.
Routine maintenance remains particularly important on a competition four-stroke. Regular air-filter cleaning, engine oil and filter changes, valve-clearance inspections and cooling-system checks are necessary to maintain reliability. Owners researching compatible replacement components can use the MXOwners motorcycle parts finder, while the fork oil and suspension reference guide provides general information relevant to suspension servicing.
The TF450-RC Edition established Triumph's presence in the 450cc motocross market and provided the foundation for the separate TF450-X introduced for the 2026 model year. Although some dealers identify the RC Edition with a 2026 listing, no distinct factory MY26 technical update has been established. Its significance remains the combination of Triumph's first purpose-built 450cc motocross engine, premium competition equipment and Ricky Carmichael's involvement in its development.