Triumph Bonneville 400 2026: Price, Specs, Features & Rivals

The Triumph Bonneville 400 is an upcoming retro-styled roadster from Triumph Motorcycles, expected to launch in India in late 2026. It uses a 398cc liquid-cooled single-cylinder engine, twin rear shock absorbers, and wire-spoke wheels, all wrapped in the classic Bonneville design language. Based on recent spy shots and industry reports, the expected ex-showroom price ranges from ₹2 lakh to ₹2.3 lakh, making it a direct challenger to the Royal Enfield Classic 350.

Triumph Bonneville 400 engine and performance details

The Bonneville 400 is expected to share the same 398cc engine as the Speed 400. According to Motorcycle News, this liquid-cooled, four-valve, DOHC single produces around 40 bhp in the Speed 400, and the Bonneville will likely get a retuned version with more low-end and mid-range torque for a relaxed, city-friendly character. The six-speed gearbox will remain standard.

This engine puts it well ahead of the air-cooled 349cc unit in the Royal Enfield Classic 350 in terms of outright power. The Bonneville should feel quicker on highways and maintain higher cruising speeds with less strain.

What will the Triumph Bonneville 400 cost in India?

Based on current estimates from Autocar India, the Bonneville 400 will likely be priced between ₹2 lakh and ₹2.3 lakh ex-showroom. BikeWale suggests it could even start under ₹2 lakh, given its simpler cycle parts and conservative tuning compared to the Speed 400.

If it lands in this range, the Bonneville 400 will undercut the Speed 400 by about ₹30,000 to ₹50,000, while staying above the Classic 350’s starting price of around ₹1.93 lakh. That positioning makes it an affordable entry into the premium modern-classic segment.

Triumph Bonneville 400 features and styling highlights

The test mules spotted in India show a bike that closely follows the larger Bonneville T120 design language. Key styling elements include a round LED headlight, a teardrop fuel tank, a flat bench seat, chrome exhaust silencer (or blacked-out on a possible “Black” variant), and rubber fork gaiters.

Mechanically, the bike uses a conventional telescopic fork at the front and twin preload-adjustable rear shocks, a deliberate departure from the USD fork and alloy wheels on the Speed 400. Wire-spoke wheels with a single disc brake at each end complete the heritage look.

Triumph is also expected to offer a full accessory catalogue inspired by the bigger Bonneville models. According to BikeWale, this may include a touring fly screen, touring seat, bar-end mirrors, backrest, waxed leather saddlebags, engine protection guards, and chrome detailing.

How does the Triumph Bonneville 400 compare to the Royal Enfield Classic 350?

The Bonneville 400 is aimed squarely at the Classic 350, but the two bikes take very different approaches. Here is a quick comparison:

The Triumph makes nearly twice the power and offers smoother liquid-cooled running, but the Classic 350 counters with a massive service network, proven resale value, and a lower initial price. For buyers who prioritise performance and brand heritage, the Bonneville is the stronger pick.

When will the Triumph Bonneville 400 launch in India?

Reports from BikeWale indicate a launch in September 2026, while Autocar India lists November 2026 as the expected date. Triumph has not given an official announcement, but sightings of near-production test mules in April 2026 suggest the bike is nearing completion.

Once launched, the Bonneville 400 will complete Triumph’s 400cc line-up in India, joining the Speed 400 and Scrambler 400 X. You can expect the bike to be produced at Bajaj Auto’s Chakan plant, ensuring competitive pricing.

Is the Bonneville 400 a better buy than the Speed 400?

The Bonneville 400 and Speed 400 share the same engine and chassis platform, but they cater to different riders. The Speed 400 has a sportier stance with USD forks, alloy wheels, and sharper handling. The Bonneville 400 swaps those for wire wheels, twin shocks, and a more laid-back geometry.

If you want a daily commuter with modern forgiveness and a classic silhouette, the Bonneville 400 will be more comfortable and visually distinctive. If you plan to carve corners or do track days, the Speed 400 remains the better tool. The Bonneville’s expected lower price also makes it an attractive entry point.

Frequently asked questions about the Triumph Bonneville 400

What is the expected price of the Triumph Bonneville 400?

The Bonneville 400 is expected to be priced between ₹2 lakh and ₹2.3 lakh ex-showroom in India, with some reports suggesting it could start under ₹2 lakh.

What engine does the Triumph Bonneville 400 use?

It uses a 398cc liquid-cooled, single-cylinder, DOHC engine shared with the Speed 400, likely retuned for more low-end and mid-range torque.

When will the Triumph Bonneville 400 be launched?

Most reports point to a September 2026 launch, though some sources mention November 2026. No official date has been announced yet.

Will the Triumph Bonneville 400 compete with the Royal Enfield Classic 350?

Yes, the Bonneville 400 is positioned directly against the Classic 350, offering more power and premium detail, while the Classic 350 counters with lower pricing and a wider dealer network.

Does the Bonneville 400 have tubeless tyres?

Wire-spoke wheels typically require inner tubes, but Triumph may offer tubeless-compatible spoked rims similar to the Scrambler 400 X. Confirmation is awaited.

Updated 2026