The Triumph Bonneville 400 occupies a fascinating position in the Indian market. It shares its 398cc single-cylinder engine with the Speed 400 — a motorcycle that won near-universal critical acclaim on launch — but wraps it in the classic Bonneville styling language: teardrop tank, round headlamp, chrome accents, and spoke wheels. The result is a motorcycle that delivers modern Speed 400 performance in a classic package that costs Rs 2.17 lakh.
For clarity: the Bonneville 400 (single-cylinder, Rs 2.17L) and Bonneville T40 (parallel twin, Rs 2.40L) are different motorcycles. The 400 is the more accessible entry point with the single-cylinder engine; the T40 is the twin-cylinder step-up. This review covers the Bonneville 400 specifically.
Engine — Speed 400’s Proven Single in Classic Clothes
| Specification | Triumph Bonneville 400 |
| Engine | 398cc single cylinder DOHC |
| Cooling | Liquid cooled |
| Power | 40 PS @ 8,000 rpm |
| Torque | 37.5 Nm @ 6,500 rpm |
| Gearbox | 6-speed with slip-and-assist clutch |
| Fuel System | Ride-by-wire fuel injection |
| Front Suspension | Conventional telescopic — 130mm travel |
| Rear Suspension | Twin shock — adjustable preload |
| Front Brake | 300mm disc dual-channel ABS |
| Rear Brake | 230mm disc |
| Seat Height | 790mm |
| Kerb Weight | 170 kg |
| Fuel Tank | 13 litres |
| ARAI Mileage | ~35-40 kmpl (estimated) |
The 398cc single produces 40 PS — the same headline number as the T40’s parallel twin but from a single cylinder at a higher 8,000 rpm versus the twin’s 7,500 rpm. In character terms, the single revs more enthusiastically and has a stronger top-end pull while the twin has more accessible low-down torque. For Indian traffic conditions where you rarely need to rev past 6,000 rpm, the single is fully adequate.
Bonneville 400 vs Speed 400 — Key Differences
| Factor | Triumph Bonneville 400 | Triumph Speed 400 |
| Price | Rs 2.17L | Rs 2.33L |
| Engine | Same 398cc single 40PS | Same 398cc single 40PS |
| Styling | Classic Bonneville retro | Modern roadster |
| Headlamp | Round — retro | Triangular LED — modern |
| Tank | Teardrop chrome accents | Modern rounded |
| Wheels | Spoke-style alloy | 5-spoke alloy |
| Handlebar | Higher, wider — relaxed | Lower — sporty |
| Suspension (front) | Conventional forks | USD forks |
| Who It’s For | Classic retro look buyer | Performance-focused buyer |
The Speed 400 is Rs 16,000 more expensive and has USD forks and a sportier riding position. The Bonneville 400 is Rs 16,000 cheaper and has the classic look with a more relaxed riding position. Mechanically they are almost identical. Your choice is almost entirely based on whether you prefer the classic retro aesthetic or the modern roadster look.
Design — The Bonneville Heritage Applied Beautifully
- Round LED headlamp with chrome outer ring — the defining Bonneville design element
- Teardrop fuel tank with chrome Triumph badge — direct lineage to the 1959 original
- Twin shorty exhausts with chrome ends
- Spoke-style alloy wheels — retro appearance without the tyre-change complexity of true spoked wheels
- Two-tone paint options — Jet Black/Snapdragon Red and Cobalt Blue/Silver Ice
- Low-rise handlebar — slightly sportier than a cruiser but more relaxed than the Speed 400
How Bonneville 400 Fits in the Triumph India Range
| Model | Engine | Price | Style |
| Speed T4 | 373cc single 40PS | Rs 2.09L | Entry naked roadster |
| Bonneville 400 | 398cc single 40PS | Rs 2.17L | Classic Bonneville retro |
| Speed 400 | 398cc single 40PS | Rs 2.33L | Modern roadster |
| Bonneville T40 | 398cc parallel twin 40PS | Rs 2.40L | Premium Bonneville twin |
| Speed Triple R | 1160cc triple 180PS | Rs 12.37L | Superbike |
The Bonneville 400 fits perfectly in the lineup as the brand entry point for buyers specifically attracted to the Bonneville heritage at an accessible price. At Rs 2.17 lakh it is Rs 8,000 more than the Speed T4 and Rs 16,000 less than the Speed 400 — a well-calibrated position.
Bonneville 400 vs Royal Enfield Interceptor 650
This is the most interesting comparison — both are retro-styled motorcycles with twin exhaust, round headlamp, and classic proportions, but the RE Interceptor 650 is a parallel twin 47 PS motorcycle at Rs 3.33-3.41 lakh. For buyers considering the Bonneville 400 at Rs 2.17L:
- Save Rs 1.16-1.24 lakh with the Bonneville 400 — significant money
- RE Interceptor 650 has more power (47 PS vs 40 PS) and twin-cylinder character
- Bonneville 400 has Triumph’s iconic British brand heritage
- For highway touring, the Interceptor 650’s bigger engine breathes more easily
- For city use and occasional highway riding, the Bonneville 400 is fully capable
| Also Read: Triumph Bonneville T40 2026 Complete Review | |
Verdict — Who Should Buy the Triumph Bonneville 400?
The Triumph Bonneville 400 is the right choice for: buyers who want the Bonneville name and classic British retro styling at the most accessible price in Triumph’s range, riders who prefer a relaxed upright riding position for city commuting with occasional highway use, and those who appreciate the classic aesthetic over the more modern-looking Speed 400 while saving Rs 16,000.
If you want the classic Bonneville look but with a twin-cylinder engine for that distinctive twin character, spend Rs 23,000 more for the T40. If pure performance is the priority, the Speed 400 with USD forks is the better handler at Rs 16,000 more.
Frequently Asked Questions
Q: What is the price of Triumph Bonneville 400 in India 2026?
Triumph Bonneville 400 is priced at Rs 2.17 lakh ex-showroom in India for 2026. On-road price in most cities will be Rs 2.45-2.60 lakh including road tax, registration, and insurance. This makes it the second most affordable Triumph in India after the Speed T4 (Rs 2.09L) and Rs 16,000 cheaper than the Speed 400 (Rs 2.33L).
Q: Triumph Bonneville 400 vs Speed 400 — which to buy?
Both use the same 398cc 40 PS single-cylinder engine. Bonneville 400 advantages: Rs 16,000 cheaper, classic retro styling with round headlamp and teardrop tank, more relaxed riding position. Speed 400 advantages: USD forks for better handling, sportier modern styling, more performance-focused ergonomics. Choose purely based on which aesthetic you prefer — the mechanical package is essentially identical.
Q: Is Triumph Bonneville 400 different from Bonneville T40?
Yes — the Bonneville 400 uses a single-cylinder 398cc engine and is priced at Rs 2.17 lakh. The Bonneville T40 uses a parallel twin 398cc engine and is priced at Rs 2.40 lakh (Rs 23,000 more). Both have similar Bonneville retro styling but the T40 has the more premium twin-cylinder character, better low-end torque, and USD forks. The 400 is the accessible single; the T40 is the premium twin.
Q: Triumph Bonneville 400 mileage in India?
Official ARAI mileage for the Triumph Bonneville 400 is estimated at 35-40 kmpl. Real-world mileage in Indian city conditions will be approximately 28-33 kmpl. On highways at 90-100 kmph, 33-37 kmpl is achievable. The liquid-cooled 398cc single with fuel injection is reasonably efficient for its performance output — significantly better mileage than larger displacement singles at higher prices.
