Triumph Motorcycles could have an exciting addition in store for Indian motorcycle enthusiasts ahead of Diwali 2026. The company is reportedly preparing to introduce the Bonneville 400, a retro-styled motorcycle aimed at riders who want classic looks combined with modern performance.

Like Triumph's other 400cc motorcycles sold in India, the Bonneville 400 is expected to be manufactured by Bajaj Auto at its Pune facility. Local production could help Triumph keep the motorcycle competitively priced while expanding its reach among India's growing premium-bike audience.

A Classic Design With a Modern Touch

The Bonneville 400 is expected to appeal to riders who prefer the timeless styling of motorcycles such as the Royal Enfield Classic 350 and Honda CB350.

The motorcycle is likely to feature a relaxed, upright riding position and a long, flat seat designed with everyday riding comfort in mind.

Other expected design elements include:

• Wire-spoke wheels

• Twin rear shock absorbers

• Chrome-finished components

• Teardrop-shaped fuel tank

• Round LED headlamp

• Large front and rear mudguards

• Rounded side panels

• Vintage-style exhaust

Together, these elements are expected to give the motorcycle a distinctly old-school roadster appearance.

Telescopic Forks Instead of USD Forks

Spy shots of the motorcycle under testing have revealed another interesting detail.

Unlike the Speed 400, which uses upside-down front forks, the Bonneville 400 is expected to use conventional telescopic forks.

While USD forks are often associated with a sportier appearance and performance-oriented motorcycles, telescopic forks are more closely associated with traditional roadster styling.

The choice fits the Bonneville's retro character.

Wire-Spoke Wheels Could Mean Tubed Tyres

Test motorcycles have also reportedly been spotted with wire-spoke wheels and tube-type tyres.

This would further strengthen the motorcycle's classic appearance.

However, tube-type tyres can require a different puncture-repair process compared with tubeless tyres. Riders considering the bike for long-distance travel may therefore want to keep this practical difference in mind.

What Engine Could Power the Bonneville 400?

The motorcycle is expected to use a 349cc single-cylinder, liquid-cooled engine.

Based on the performance figures of Triumph's existing 400cc models, the Bonneville 400 could produce approximately 36.5 bhp and 32 Nm of torque.

A six-speed gearbox is also expected.

If these figures remain close to the final production specifications, the Bonneville 400 could offer considerably more power than some of the established retro motorcycles in its segment.

How Does It Compare With the Classic 350 and CB350?

The Royal Enfield Classic 350 uses a 349cc engine producing around 20.2 bhp and 27 Nm of torque.

The Honda CB350, meanwhile, gets a 348.6cc engine producing approximately 21 bhp and 29.5 Nm of torque.

The expected Bonneville 400 figures would therefore put it significantly higher in terms of outright engine output.

However, numbers alone don't determine how a motorcycle feels on the road.

Triumph will also need to ensure that the engine, gearbox, suspension and chassis are tuned for smooth everyday riding rather than focusing only on performance.

Expected Price

Triumph has not officially announced the price of the Bonneville 400 yet.

The motorcycle is currently expected to fall somewhere between ₹2.3 lakh and ₹2.6 lakh, ex-showroom.

At that price, it could enter competition with popular retro motorcycles such as the Royal Enfield Classic 350 and Honda CB350.

If Triumph manages to combine its stronger performance with competitive pricing, the motorcycle could attract riders looking for a classic design without compromising on engine output.

When Could the Bonneville 400 Launch?

The Bonneville 400 is expected to arrive in India before Diwali 2026, although Triumph is yet to officially confirm the launch date.

The final specifications, features, variants and pricing will also be revealed closer to the launch.

Until then, the information available about the motorcycle remains based largely on test-bike sightings and expectations from Triumph's existing 400cc lineup.

Triumph's 400cc Family Continues to Grow

The Bonneville 400 would become another addition to Triumph's expanding 400cc portfolio in India.

The company's current lineup includes motorcycles such as the Speed 400, Speed T4, Scrambler 400 X, Scrambler 400 XC, Thruxton 400 and Tracker 400.

The Bonneville would bring a more traditional retro-roadster character to this growing family.

Bottom Line

The upcoming Triumph Bonneville 400 could combine the classic styling of a traditional British roadster with the performance expected from Triumph's modern 400cc platform.

With features such as a teardrop tank, spoke wheels, twin shocks, telescopic forks and a retro exhaust, the motorcycle is clearly expected to focus heavily on its vintage appeal.

If the expected ₹2.3–₹2.6 lakh ex-showroom price is close to the final figure, the Bonneville 400 could become an interesting option for riders looking for classic styling with significantly more performance than some established 350cc retro motorcycles.

Triumph's official launch date, final specifications and price are still awaited.