Triumph has followed through with its promise to release new enduro models, , with the TF 250-E and TF450-E revealed today.
Triumph says the 250 enduro engine is all-new and the most powerful in its class, with just under 42 horsepower and 20.5 pound-feet of torque from a liquid-cooled single. It tops out at 12,800 rpm, so it’s a high-revver compared to a lot of traditional trail bikes. But, Triumph says it has a strong bottom end and that it excels in slow-speed technical sections.
They provide fewer details about the 450 single, but it’s most likely related closely to the 450 motocross bike that Triumph has been campaigning in Supercross for the past season and a half.
Both engines have been tuned to keep their inertia up when going through the tight, tough stuff, and Triumph says an Exedy racing clutch helps here, enabling smooth, clutchless up-shifting through the six-speed gearbox. Note that a quickshifter comes standard.
The 250 and 450 engines come with a Dell’Orto 44mm throttle body that was designed specifically for Triumph, with an air bypass system for when you’re starting the bike cold, as well as a manually-adjustable idle speed.
Each bike comes with engine management software from Athena; developed together with Triumph, this works to keep the engine mapping on-track, with traction control management tied into the system as well.
In stock form, the bike comes with two different engine maps, one for full-throttle riding and another mode for more careful riding on tricky terrain. More maps can be added with the Triumph MX Tune Pro app, downloading them to the bike through the optional wi-fi module.
Finally, at the exhaust system: The TF 250-E comes with a Helmholtz resonator integrated into the header, to help boost performance through improved cylinder evacuation. As for the TF 450-E, there’s a side-resonator in the silencer that keeps the exhaust noise down to trail-legal levels while still maintaining a deep note.
Photo: Triumph
Moving on to the frame: Both bikes come with an aluminum spine frame, TIG-welded and machined after production to make sure everything is dimensionally correct. Both machines come with a fully-adjustable 48mm KYB fork, and a linkage-style rear suspension with three-way adjustability. The suspension has 10mm less travel than Triumph’s MX bikes, but it’s designed for enduro riding, not massive motocross jumps. The swingarm, in particular, is designed to allow the bike to have better front-end feedback for improved handling.
The brakes are a combination of Galfer discs (260 mm front, 220 mm rear) with a Brembo twin-piston floating front caliper, and a single-piston floating caliper in rear. The brake lever is adjustable for individual rider setup.
Michelin Enduro 2 tires are standard, on D.I.D. DirtStar 7000-series aluminum rims on cast aluminum hubs.
Pro Taper ACF Carbon Core handlebars are standard, with adjustable mounts to dial in the rider’s fit. ODI lock-on grips with a half-waffle pattern are standard. Seat height is 37.6 inches, with a non-slip cover. Fuel capacity is 2.2 gallons (8.3 liters). All-round LED lights are standard.
Wet weight on the 250 is 114.2 kg, or 251 pounds (see full specs here). The 450 wet weight is 116.7 kg, or 257 pounds (full specs here).
Although the bikes come with lights, it will not be street-legal for North American riders, says Triumph. As per the PR:
The TF 250-E and 450-E Enduro bikes will have a head light and taillight and are off-road, race-spec only. They will not be street legal and will not include blinkers, license plate holder, nor be homologated for street use. Triumph is actively working to continually grow our off-road and on-road model offerings.
Of course, some riders will manage to get state-certified street plates for their bikes.
MSRP for the machines is $9,795 in the US or $12,395 in Canada for the TF 250-E. The 450 will be $10,795 in the US or $13,295 in Canada. The bikes are supposed to be available from June onwards, and you can place orders now at a dealer.
