Triumph Bonneville 400 In Consideration; Lower CC Bonnie Finally?

Triumph Motorcycles is showing no signs of slowing down. Hot on the heels of the Thruxton 400s launch, we've learned from some online sources that the iconic British brand is now exploring a brand-new offering: the Triumph Bonneville 400. Positioned as a true retro roadster, this new model will be built on the same platform as the Speed 400, expanding Triumph's 400cc lineup further. If approved for production, the Bonneville 400 could go head-to-head with the immensely popular Royal Enfield Classic 350, a segment leader that has faced little threat despite several attempts from competitors. Let's get into some more details and look at what could all is happening behind the curtains, but beofre that, make sure to join the 91wheels WhatsApp Community, specifically curated for petrolheads like us to keep up with the latest news and automotive updates.

Also Read- Triumph Thruxton 400 Launched, Prices Start From Rs 2.74 Lakh!

The Case For A Mini Triumph Bonneville 400

When Bajaj and Triumph announced their partnership, enthusiasts expected a compact Bonneville to kick things off. But instead, Triumph led with the Speed 400, a performance-focused modern roadster. Now, it seems that the Bonneville 400 might finally see the light of day. Leveraging the nostalgia and legacy of the Bonneville badge, this bike could combine classic British styling with accessible performance, making it a strong proposition for both new riders and heritage lovers. Styling for the Bonneville 400 is likely to draw heavily from the larger Bonneville models, which are widely regarded for their timeless appeal, and for me, this feels like its core personality, which should be carried forward.

To truly embody the retro spirit, Triumph may revise the proportions to make the Bonneville 400 appear visually more substantial than the Speed 400, addressing one of the few criticisms aimed at the latter's compact stance.

Engine and Mechanical Expectations

While the Bonneville 400 will likely retain the 398cc single-cylinder engine seen in the Speed 400 and Thruxton 400, Triumph could consider tuning it for a more torque-biased output, better suited to relaxed cruising. Whether Triumph opts for the same high-revving character or reworks the final drive to deliver low-end punch will be a key detail to watch.

Also read: 2025 Suzuki Avenis Now Gets A New Paint Scheme, Priced At Rs 91,400!

Triumph Thruxton 400: A Quick Recap

Yesterday, Triumph officially launched the Thruxton 400, the fifth product from its Bajaj partnership. A cafe racer in every sense, the Thruxton 400 features a half-fairing inspired by the Speed Triple 1200 RR, clip-on handlebars, and a revised tail section with a removable cowl. While much of the hardware is shared with the Speed 400, including the perimeter frame, 43mm USD forks, and 300mm front disc, the Thruxton adopts a slightly more committed riding posture and weighs in at 183 kg (4 kg more than the Speed).

Power comes from the same 398cc engine, now tuned to produce 41.4 bhp at 9000 rpm and 37.5 Nm at 7500 rpm, with performance tweaks for higher-end delivery. It retains features like a slip-and-assist clutch, ride-by-wire throttle, dual-channel ABS, switchable traction control, and a USB-C charger, while offering heated grips as accessories.

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