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Triumph Speed 400 vs Bonneville 400 — Should You Wait or Buy Now?
Reviews by Drivio | 14 May 2026
Two Triumph 400s, one agonising decision. The Triumph Speed 400 vs Bonneville 400 debate is real — and it matters to every rider eyeing a sub-₹3 lakh modern British motorcycle. One is available at a dealership near you today; the other is a spy-shot sensation still being finalized for India. Here's everything you need to know before opening your wallet.
The Specs Face-Off
| Specification | Triumph Speed 400 (2026) | Triumph Bonneville 400 (Expected) |
| Engine | 349cc, liquid-cooled, single-cylinder | 349cc, liquid-cooled, single-cylinder |
| Max Power | ~37 PS @ 8,500 rpm | ~31–37 PS (retro tune expected) |
| Peak Torque | ~32 Nm | ~30–32 Nm (low-end biased) |
| Top Speed | ~160 kmph | ~145–155 kmph (estimated) |
| Mileage | ~30–34 kmpl | ~32–36 kmpl (estimated) |
| Ex-Showroom Delhi | ₹2.50 lakh | ₹2.00–2.50 lakh (expected) |
Bonneville 400 figures are based on verified spy reports and Bajaj-Triumph engine data. Official specs pending launch.
Engine & Performance
Both motorcycles share the same 349cc liquid-cooled TR-series single-cylinder — India's GST reform of September 2025 pushed Bajaj-Triumph to downsize from 398cc to stay under the 350cc tax bracket. The 349cc unit uses a shorter crankshaft with a 56.1mm stroke while retaining the same 89mm bore, with power dropping to approximately 37 PS and torque settling at 32 Nm. The Speed 400 retains its sporty, rev-happy character. The Bonneville 400, however, will have its engine retuned to suit the Bonneville's heritage, cruiser-like characteristics — expect more accessible low-end grunt over peak power drama.
Chassis, Handling & Design
This is where the two bikes diverge completely. The Speed 400 is a taut, modern roadster with an upside-down front fork and a monoshock rear — built for precision. The Bonneville 400 will reportedly receive a unique chassis with a twin-shock rear setup instead of the monoshock system, which shifts the riding character toward a more relaxed roadster feel. It rolls on spoke wheels with gaitered telescopic forks, a teardrop tank, and a flat bench seat that echoes the iconic Bonneville T100 silhouette — only smaller and more affordable.
Technology & Features
The Speed 400 carries a semi-digital console, dual-channel ABS, and USD forks — genuinely premium hardware for its price. The Bonneville 400 is expected to feature a new circular console that looks like a TFT unit — a design first for the 400 lineup — along with disc brakes at both ends and dual-channel ABS.
Should You Wait or Buy Now?
The Bonneville 400 is confirmed for a Q4 2026 launch in India, expected just before Diwali. The delay was caused by the new GST regulations that took effect in September 2025, forcing Bajaj-Triumph to rework the engine for the Indian market.
If you ride fast, commute hard, and want your motorcycle now — the Speed 400 is a proven, award-winning package at ₹2.50 lakh. But if your heart beats for chrome, spoke wheels, and the Bonneville nameplate, and you can hold on until October 2026 — the wait is worth every month. The Bonneville 400 isn't just another variant; it promises the prestige of the Bonneville nameplate with a price tag and engine displacement optimized for the Indian enthusiast. Buy the Speed 400 for the rider you are. Wait for the Bonneville 400 for the rider you want to be.
