Triumph 2027: New Street Triple 798 with Moto2 spec engine

Alongside the detailed unveiling of the retro classic Bonneville T40, Triumph has announced further unveilings: On 27 October, Triumph will be giving us a detailed look at the Tiger 1200 touring enduro, followed on 17 November by the Street Triple 798 roadster and, on 15 December, another touring enduro, the Tiger 900.

This is sure to catch the attention of the usually well-informed SPEEDWEEK reader: Street Triple 798? That’s right – it seems Triumph is treating us, in the very same year that the standard three-cylinder engine in the Moto2 World Championship is being upgraded from 765 to 798 cc, to a road-going model fitted with that very same engine – naturally in a version that’s suitable for everyday use and meets Euro 5+ standards.

The increase in displacement isn’t achieved simply by boring out the cylinder; the stroke is also being increased, although Triumph won’t reveal the exact figures until 17 November. The 765cc engine, with dimensions of 78 x 53.4 mm, is already designed with a fairly short stroke. There is no longer a conventional exhaust; the entire exhaust system is located beneath the engine and is largely concealed by the front fairing.

Einheitsmotor der Moto2-WM für die Strasse: Triumph Street Triple 798

Foto: Triumph

Triumph has announced a cylinder head with optimised gas exchange and a valve train with minimised friction losses for the 2027 Moto2 spec engine. It is not known which of these features will be incorporated into the production engine. Triumph quotes 140 PS for the current Moto2 engine and has promised a 6 per cent increase in power for 2027. That would amount to 148.5 PS with a distinctly broad-shouldered torque curve.

In its most powerful version, the road-legal 765 engine produces 130 PS at 12,000 rpm. If we were to add 6 per cent purely speculatively, that would take us to 138 PS. If Triumph were to succeed in increasing the torque from 80 Nm at 9,500 rpm accordingly whilst maintaining the kerb weight of 188 kg, we could look forward to a very agile motorbike for mountain and country roads.

Neues Design ohne den geliebten Doppelscheinwerfer

Foto: Triumph

Alongside the revised engine, the Street Triple features a modified aluminium chassis with an adjusted stiffness distribution. The rear wheel is mounted in a significantly more robust swingarm. The RS version shown in the picture is fitted with a central monoshock from Öhlins, which is mounted in a much more upright position within the chassis than on the Street Triple 765. Also new is the rear section of the frame, which positions the rider higher and closer to the handlebars.

Deutlich fettere Schwinge, steiler stehendes Federbein, Unterflur-Auspuff

Foto: Triumph

At the front, we can see a Showa BPF fork with 41 mm stanchions. Both suspension components are adjustable on the RS version. The front braking system, featuring radially mounted four-piston Brembo calipers and 310mm twin discs, appears to have been carried over from the previous model. The design has been completely revamped. Fans of the Street Triple will miss the characteristic twin headlights.