Triumph TF450X 2027: Engine and suspension revised

After its first season in AMA Supercross and Pro Motocross, Triumph is setting its sights on the next challenge with the TF450X 2027: entering the 450cc class of the FIM MXGP Motocross World Championship. Lessons learned from the global race programme flow directly into the production bike. The engine, clutch, gearshift and suspension all receive updates aimed primarily at improving rideability and control.

Power alone only tells part of the story here. Triumph quotes 62.4 hp at 9,500 rpm and 49.9 Nm at 7,000 rpm for the 449.5cc four-stroke SOHC single. For 2027, a revised engine calibration is said to improve torque delivery, responsiveness and feel for rear-wheel grip. New valve guides are made from a highly wear-resistant material and feature a revised design. They are joined by revised DLC-coated rocker arm shafts which, according to the manufacturer, increase durability and stability at high revs.

The engine features a forged König piston, Del West titanium valves, DLC-coated internals, lightweight magnesium covers and a fully CNC-machined combustion chamber. Bore and stroke measure 95 and 63.4 mm respectively, with a compression ratio of 13.1:1. A Dellorto throttle body works together with Athena engine management. New engine mounts are also designed to fine-tune stiffness, improving chassis feedback and rider comfort in rough race conditions.

Triumph goes into fine detail on the drivetrain. The hydraulically actuated wet multi-plate steel clutch with diaphragm spring gets a new clutch pack, a new single clutch bearing and a new hose. This is intended to improve durability and engagement feel. On the five-speed gearbox, the shift fork, shift drum, shift star, detent lever, shift shaft and gear lever are all new. The goal is smoother, more precise gear changes under load.

The rear wheel now carries a 50-tooth sprocket, giving a final drive ratio of 13/50. Triumph expects this to deliver stronger acceleration and drive out of corners. The chain guide has also been revised with a different material and new geometry. It is designed to better withstand side impacts and reduce the risk of the chain coming off. A revised oil level indicator rounds off the drivetrain changes.

Front and rear get new KYB settings which, according to Triumph, improve balance, damping control and feedback. The 48 mm AOS steel-spring fork offers compression and rebound adjustment and 310 mm of travel. New fork guards feature a revised design and are said to be stronger and more durable. At the rear, 305 mm of travel is available, with the steel-spring shock adjustable for high- and low-speed compression as well as rebound. New tool-free adjusters make trackside changes easier.

The foundation is a TIG-welded aluminium central spine frame with dual downtubes and a design focused on mass centralisation. It is joined by a hydroformed aluminium swingarm, a forged and machined linkage and Neken triple clamps made from 7075-T6 aluminium. Triumph quotes a wheelbase of 1,492 mm, a steering head angle of 27.4 degrees and trail of 116 mm. The TF450X is said to have a wet weight of 108.6 kg, and the tank holds seven litres.

The ergonomics are tailored to the movements of motocross riding. To that end, Triumph combines a ProTaper ACF Carbon Core handlebar with ODI lock-on grips and a specially profiled seat. The seat height is 960 mm. The bike measures 2,243 mm in length, 836 mm in width at the handlebar and 1,270 mm in height. For the wheels, Triumph relies on D.I.D DirtStar 7000-series aluminium rims in 21 x 1.6 inches at the front and 19 x 2.15 inches at the rear. These are shod with Pirelli MX32 Mid Soft tyres in 80/100-21 and 110/90-19 for soft to intermediate terrain.

Braking is handled by a Brembo system with Galfer discs, measuring 260 mm in diameter at the front and 220 mm at the rear. Triumph promises consistent braking performance, feedback and modulation. The new model year also brings a change of look: black bodywork, Triumph Racing Yellow accents and updated graphics define the appearance of the TF450X 2027.

Standard features include traction control, launch control, a quickshifter and two engine maps. These functions are integrated into the Athena ECU with GET Power Assist. New separate start and stop switches complement the controls for 2027, and an hour meter and a multifunction switch are also on board. Anyone wanting further setups can unlock ten additional engine maps via an optional Wi-Fi module and the MX Tune Pro app.

According to Triumph, the TF450X 2027 will be available from specialist motocross dealers from November 2026. In Germany the price is 10,895 euros plus dealer-specific delivery costs, in Austria 11,495 euros including additional costs and NoVA (Austrian standard fuel consumption tax). According to Triumph, the general four-year Triumph manufacturer's warranty for newly registered motorcycles in Germany and Austria does not apply to competition bikes.

For off-road use, Triumph points to more than 300 specialist motocross and enduro centres worldwide offering service, technical support, parts supply and race-day assistance. An online platform for genuine parts and accessories, available around the clock, offers express delivery and click-and-collect. You can find the right dealers via the Triumph dealer search using the filter for motocross bikes.

What changes on the Triumph TF450X for 2027?

The changes include the engine calibration, cylinder head components, engine mounts, clutch and gearshift, the 13/50 final drive, chain guide and oil level indicator. Added to these are new KYB settings and tool-free adjusters, fork guards, separate start and stop switches, plus black bodywork with new graphics.

How much power does the Triumph TF450X 2027 have?

Triumph quotes 62.4 hp at 9,500 rpm and 49.9 Nm at 7,000 rpm for the 449.5cc SOHC single.

Which electronic aids come as standard?

Traction control, launch control, a quickshifter and two engine maps are standard. Ten additional maps can be unlocked with the optional Wi-Fi module and the MX Tune Pro app.

How much does the Triumph TF450X 2027 cost and when is it coming?

It will be available from November 2026. The German price is 10,895 euros plus dealer-specific delivery costs, the Austrian price 11,495 euros including additional costs and NoVA.