Upcoming Triumph Bonneville 400 Spied Again
- Sep 22, 2026
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Triumph has pulled the covers off its smallest Bonneville yet: the Bonneville T40. And while the name, styling and general vibe are unmistakably Bonneville, there is a lot going on underneath that retro charm.
Available in T40 and T40 Black variants, the new Triumph bike brings the classic Bonneville experience to a much wider audience with a completely new chassis, a 349cc engine and an electronics package that is anything but old-school.

The easiest way to describe the T40 is to imagine a Bonneville T100 that has been put through the Triumph 400 treatment. The proportions are more compact, but visually, the recipe remains almost the same.
You get the classic teardrop fuel tank, round LED headlight, long mudguards, single-pod-style circular instrument housing and peashooter exhaust. Twin rear shocks and spoked wheels complete the traditional silhouette.
And Triumph hasn't just slapped a retro paint job on a modern motorcycle and called it a day. The T40 gets hand-painted coach lining, rubber knee pads, the iconic three-bar Triumph tank badge and aluminium engine covers. The T40 gets chrome and brushed-metal finishes, while the T40 Black goes for a much darker treatment.
The T40 comes in four gorgeous colours: Meriden Blue, Aegean Blue, Fusion White and Matt Pewter Grey. If you ask us, it is the Meriden Blue which is our favourite of the lot.

The baby Bonnie gets a 4-inch full-colour TFT display. It offers full smartphone connectivity, music and call controls, and, rather surprisingly for a motorcycle that looks like it belongs in the 1960s, full map navigation.
There are five riding modes: Road, Rain and Eco, plus two customisable modes. The bike also gets cruise control, self-cancelling indicators, a USB-C charging socket and Emergency Deceleration Warning.
Rider safety aids include lean-sensitive cornering ABS and cornering traction control. That's an impressive amount of rider assistance for a motorcycle in this segment.
There's even a Heritage Mode for the TFT, which switches the display to an analogue-style layout so you can have all the modern tech without completely ruining the retro vibe.

Power comes from the latest iteration of Triumph's 349cc liquid-cooled single-cylinder engine. It gets the same state of engine tune as the Speed T4 and has a 6-speed gearbox.
It produces 29 PS at 7,000rpm and 31.2 Nm at 5,500rpm, with Triumph focusing on stronger low-end torque and relaxed, torque-rich performance rather than outright speed.

Underneath the styling is a dedicated new chassis. It gets a telescopic fork and twin shocks, while the 18-inch front and 17-inch rear spoked wheels retain the classic Bonneville stance.
The riding position is upright and relaxed, with a classic bench seat. The standard seat height is 790 mm, but an accessory low seat drops it to 770 mm. While the kerb weight is 191 kg.
There's even a centre stand as standard, making everyday ownership and chain maintenance a little easier.

While the British bike maker has now announced the exact India launch date for the bike, we expect it to make its way to our shores by the end of this year.
With an expected Indian price of around Rs 2.6 lakh-2.7 lakh (ex-showroom), it is likely to sit above Triumph's existing 400 range. That puts it in an interesting position for buyers who want the Bonneville experience without stepping up to the larger, considerably more expensive Bonnevilles.
Once it launches, the Bonneville T40 will have some serious competition with the Royal Enfield Classic 350, Jawa 350, Honda CB350 and Harley-Davidson X440.
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