Someone just handed the Indian motorcycle internet a loaded gun — and it has Triumph’s name on it. Leaked performance specs for the entire 350cc Triumph lineup, arriving on April 6, 2026, are now circulating online, and the numbers are genuinely impressive.
I’ve gone through every detail in the leaked data, compared it against both the outgoing 400cc Triumph range and Royal Enfield‘s best sellers, and here is everything you need to know before that launch date arrives.
Why Triumph Is Building 350cc Bikes At All
It all comes down to India’s GST structure. Triumph has clearly done the math and decided that engineering 350cc versions of its existing lineup — the T4, Speed, Scrambler 400X/XC, and Thruxton — makes strong business sense under the revised tax regime. The planned launch is locked in for April 6, 2026, and with the specs now out, the buzz is very real.
Will prices drop dramatically? That part is still uncertain. Bajaj, which manages Triumph’s India operations, chose not to pass on cost benefits when GST was previously adjusted. So I wouldn’t count on a dramatic price slash — but even at similar price points, these 350cc specs change the game significantly.
Full Leaked Performance Numbers — All Four Models
Here is the complete breakdown of what the leaked data shows for the 350cc versions, directly compared to the outgoing 400cc engines.
| Model | Engine | Power | Torque | Top Speed | 0–100 km/h |
|---|---|---|---|---|---|
| T4 400cc | 400cc | 31 PS | 36 Nm | 141.4 km/h | 8.9 sec |
| T4 350cc | 350cc | 29 PS | 31 Nm | 137 km/h | 9.6 sec |
| Speed 400cc | 400cc | 40 PS | 37.5 Nm | 148.7 km/h | 7.4 sec |
| Speed 350cc | 350cc | 37 PS | 32 Nm | 147 km/h | 8.1 sec |
| Scrambler 400X 400cc | 400cc | 40 PS | 37.5 Nm | 146.5 km/h | 7.4 sec |
| Scrambler 400X 350cc | 350cc | 37 PS | 32 Nm | 144 km/h | 8.8 sec |
| Thruxton 400cc | 400cc | 42 PS | 37.5 Nm | 161 km/h | 7.5 sec |
| Thruxton 350cc | 350cc | 40 PS | 32 Nm | 157 km/h | 8.3 sec |
The Triumph T4 350cc — Entry Point, But No Pushover
The T4 350cc loses 2 PS and 5 Nm compared to its 400cc sibling, landing at 29 PS and 31 Nm. Top speed dips slightly to 137 km/h. On paper that sounds like a downgrade — but then remember what you’re comparing it against in this segment.
The Royal Enfield Classic 350 makes 20.2 PS and 27 Nm through a 5-speed gearbox. The Triumph T4 350cc simply outperforms it in every measurable way. I don’t see how RE’s most iconic retro commuter holds its ground once buyers start comparing spec sheets at dealerships.
Triumph Speed 350cc — Nearly Identical To The 400cc In Real Life
This one genuinely surprised me. The Speed 350cc puts out 37 PS and 32 Nm, and its top speed of 147 km/h is only 1.7 km/h slower than the 400cc version. The 0–100 km/h time stretches from 7.4 seconds to 8.1 seconds — a difference you’ll honestly struggle to notice in city traffic or on a highway run.
For the urban Indian rider who wanted a Speed 400 but was waiting for a sharper price point, this 350cc version might land exactly where they need it to. The performance drop is minimal. The style and the badge remain identical.
Scrambler 400X/XC 350cc — Off-Road Cred Stays Intact
The Scrambler matches the Speed in power output — 37 PS and 32 Nm — and the top speed of 144 km/h is just 2.5 km/h less than the 400cc model. The 0–100 km/h time of 8.8 seconds is a tiny step back but nothing that will upset adventure riding plans.
Given that the Scrambler 400X/XC was already one of the more exciting bikes in Triumph’s India lineup, the 350cc version keeping nearly identical real-world performance is a genuinely good outcome for buyers.
Triumph Thruxton 350cc — The Segment King
Here is where things get properly exciting. The Thruxton 350cc makes 40 PS and 32 Nm, with a top speed of 157 km/h. That makes it the most powerful single-cylinder 350cc motorcycle available anywhere in India — full stop.
To put that in perspective, the RE Meteor 350 makes 20.4 PS. Even the much-praised Royal Enfield Himalayan 450 makes 40.2 PS from a larger 452cc engine. The Thruxton 350cc is essentially matching the Himalayan 450’s power output from a smaller displacement — and doing it in a café racer body that looks a million times more dramatic.
What Comes Next After April 6, 2026
Beyond the four models covered here, Triumph is also planning to introduce the Tracker 400 and Bonneville 400 to the India lineup. The 350cc range already sits at fifth place in India’s 350cc–450cc bestseller rankings. With these spec numbers now confirmed and the launch date set, that ranking could shift quite significantly before the year is out.
I’m personally most curious about the final pricing. If Triumph passes even a portion of the GST-related savings to buyers, April 6 becomes a genuinely landmark day for Indian motorcycling. If they hold prices steady, the segment spec war just gets more intense — and buyers still win.
If you’ve been sitting on the fence about upgrading from a Royal Enfield or a Bajaj to a Triumph, now is the time to walk into a showroom and ask for a test ride slot. These numbers are compelling enough to act on — and the April 6 launch is closer than it feels.
