Triumph Motorcycles has expanded its 400cc Modern Classics portfolio with the unveiling of the Tracker 400, confirmed for launch in the UK for the 2026 model year. Positioned as a flat track-inspired road motorcycle, the Tracker 400 adds a new body style to Triumph’s small-capacity range.

1. Triumph Tracker 400 makes 2hp more than Speed 400
2. The Tracker 400 runs on 17-inch wheels at both ends
3. It features new bodywork and redesigned fuel tank

Triumph Tracker 400: What’s new? 

The Tracker 400 weighs 3kg more than the Speed 400 (UK spec)

The Tracker 400 sits with the Speed 400 and Scrambler 400, and it has been unveiled alongside the Thruxton 400 in the UK. Although it shares Triumph’s TR-Series engine and the Scrambler’s end-can, the Tracker 400 differs from the Scrambler 400 across several mechanical, dimensional and ergonomic parameters. It is more closely related to the Speed 400.

The 398cc single-cylinder liquid-cooled engine produces 42hp at 9,000rpm in the Tracker (same as the Thruxton 400) – a 2hp increase over the Speed – while torque output remains unchanged at 37.5Nm. This engine comes mated to a 6-speed gearbox.

The Tracker’s kerb weight is 173kg, 3 kilos more than the UK-spec Speed 400’s. Chassis geometry and hardware further differentiate the two motorcycles. While the Tracker 400 runs a slightly sharper rake angle of 24.4 degrees, the Speed uses a 24.6-degree setup. Wheel sizes are the same, with the Tracker adopting 17-inch wheels at both ends with a 150-section rear tyre.

The Tracker 400 features a taller seat height of 805mm as opposed to the Speed 400’s more accessible 790mm. Braking hardware is also shared with the Speed: 300mm front disc paired with a 230mm rear disc.

Visually, the Tracker 400 adopts a flatter, stripped-back design language inspired by flat-track racing, with a boxy fuel tank, flyscreen, number-board-style panels and a colour-coded seat cowl. The rear three-quarter section, including the simple rectangular LED tail-light and even the seat, appears to be shared with the Thruxton 400.

With the Tracker 400 being unveiled in the UK, it remains unlikely that Bajaj will launch this model in India.