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Triumph 350cc Engine Specs Leaked – Speed, T4, Scrambler, Thruxton

2026 Triumph Speed 350

Triumph has adapted quickly to benefit from the new GST regime by developing 350cc versions of its existing 400cc bikes. These are planned to be launched on 6th April 2026. Ahead of that, performance numbers of Triumph’s new 350cc bikes have been leaked online. In addition to the power and torque output, the top speed and 0-100 km/h numbers have also been revealed. Let’s check out the details.

Triumph T4 400cc vs. 350cc – Performance comparison

Triumph T4’s 400cc engine generates 31 PS and 36 Nm of torque. It has a top speed of 141.4 km/h and can achieve 0 to 100 km/h in 8.9 seconds. 0 to 60 km/h takes just 3.3 seconds. The new Triumph T4 350cc has an output of 29 PS and 31 Nm. That’s a reduction of 2 PS and 5 Nm, as compared to the 400cc engine.

Triumph T4 350cc version has a top speed of 137 km/h. 0-60 km/h takes just 3.5 seconds, whereas 0-100 km/h takes 9.6 seconds. However, it is still much more performant than RE’s Classic 350 which comes with 20.2 PS and 27 Nm and a 5-speed gearbox.

Triumph Speed

2024 Triumph Speed 400: Performance, Price, and Photos

Triumph Motorcycles takes a step back from the top- and mid-range bikes to fill out its Speed family with the new, beginner-friendly Speed 400. Like its two- and three-cylinder big-bore brethren, the Speed 400 inherits a solid pedigree along with clear DNA that ties it visually to the rest of the family.

The Speed 400 comes with a modest safety package, which bundles both electronic and mechanical safety systems. It's a nice level of support that will especially benefit newer riders and boosts its trainer-bike chops. It also carries a number of design features that bring to mind the custom culture both old and new. Naturally, the factory has a line of genuine accessories that let you make your own mark on your bike, which is something of a blank canvas by design.

This family tree first saw the light of day in 1938 and was refreshed in 1994 with the release of the '94 Hinkley Triumph, which established the modern naked-sport look. The family has since expanded to include 1,200cc, 900cc, and now 400cc powerplants that cover a wide range of riders and skill levels.

RELATED: The New Triumph Speed 400 Is Here To Disrupt The Entry-Level Segment