Considering the fact that Triumph offers five different motorcycles on the platform, the brand clearly believes in its TR-series 398.15cc liquid-cooled single-cylinder engine.
Having test-ridden the two most recent bikes to deploy it, the Thruxton 400 and Tracker 400, I have to say I believe in it too.

The power and torque it generates are a thrilling reminder that small-displacement affordability and approachability do not have to come at the expense of, well, fun.
The temptation just rose another notch at the most accessible level, as the Speed 400 returns for the new model year with quite possibly its best look yet.
Better off red
Before we dig into it, a quick contextual note: the fresh Speed 400 paint scheme is one of six newly liveried bikes Triumph UK just announced for the 2027 model year.
As with the updated Rocket 3 R, Rocket 3 GT, Speed Triple 1200, Scrambler 400 X and Tiger Sport 800, the US will have to wait to see if this Speed 400 treatment makes its way stateside.






