Last year, the Triumph TF 450-RC Special Edition ended the 50-year drought of motocross bikes from the British marque. The 2026 Triumph TF 450-X settles in as the flagship MXer, with a few changes. You can read our review of the RC to get all the details on the bike, so let’s focus on the changes as it transitions from RC to X with a $300 price cut.
- Pirelli Scorpion MX32 tires replace Dunlop Geomax MX34 rubber. This change will be cheered by many who ride in softer, loamier conditions. Regardless, tires are consumables.
- The clutch on the 2026 Triumph TF 450-X has been upgraded. There’s a new Exedy clutch hub has lubrication ports designed to transfer torque more efficiently and improve durability. The clutch gets a new Belleville spring; a Triumph insider tells us the swap was made for “enhanced durability and refined clutch action.”
- New engine mounts will change the handling a bit. We won’t know how much and in which direction until we ride it.
- The selector star in the transmission is new. Our sources at Triumph claim it “offers improved gear selection and robust engagement.”
- The new 2026 graphics are molded in. You’ll note the Triumph Performance Yellow contrasting with the Jet Black/Pure White color scheme.
- Triumph continues to offer an accessories upgrade path:
- MX Tune Pro and Accessory Engine Management Unit w/ 10 engine maps
- Akrapovič full-titanium exhaust system
- Athena LC-GPA launch control module w/ adjustments for traction and engine speed
- Gripper seat cover and seat
- The 2026 Triumph TF 450-X has a list price of $10,695. Check with your local Triumph off-road dealer for availability details.
2026 Triumph TF 450-X Specs
ENGINE
- Type: Four-stroke single
- Displacement: 450cc
- Bore x stroke: 95 x 63.4mm
- Maximum power: 62 horsepower @ 9500 rpm
- Maximum torque: 37 lb-ft @ 7000 rpm
- Compression ratio: 13.1:1
- Valvetrain: SOHC; 4 Del West titanium valves
- Fueling: Dell’Orto throttle body w/ Keihin injector
- Ignition: Athena EMS w/ GET Power Assist
- Starting: Electric
- Transmission: 5-speed w/ up-only quickshifter
- Clutch: Wet multiplate w/ single-disc Belleville spring and Brembo hydraulics
- Final drive: D.I.D 520 SDH chain and JT sprockets
CHASSIS
- Frame: Aluminum spine w/ double cradle
- Swingarm: Aluminum
- Handlebar: ProTaper ACF w/ ODI lock-on grips
- Front suspension; travel: Fully adjustable KYB AOS inverted 48mm inverted fork; 12.2 inches
- Rear suspension; travel: Fully adjustable, linkage-assisted KYB piggyback shock; 12.0 inches
- Rims: D.I.D Dirtstar 7000
- Front: 21 x 1.60
- Rear: 19 x 1.85
- Tires: Pirelli Scorpion MX32
- Front tire: 80/100 x 21
- Rear tire: 110/90 x 19
- Front brake: 260mm disc w/ Brembo 2-piston caliper
- Rear brake: 220mm disc w/ Brembo single-piston caliper
DIMENSIONS and CAPACITIES
- Wheelbase: 58.7 inches
- Rake: 27.4 degrees
- Trail: 4.6 inches
- Seat height: 37.8 inches
- Fuel capacity: 1.85 gallons
- Wet weight: 239 pounds
- Color: Jet Black / Pure White
2026 Triumph TF 450-X Price: $10,695 MSRP
2026 Triumph TF 450-X Photo Gallery
