Explore an in-depth overview of the Triumph Thruxton 400 specifications and features, offering comprehensive details on its engine, fuel efficiency, mileage, brakes, max power, and tyre. Additionally, gain insights into the bike's advanced safety features. The Triumph Thruxton 400 is a cafe racer bike available at a starting price of Rs. 2,74,663 in India. It comes in 1 variant and 4 colours. It is powered by a 398 cc BS6 Phase 2B engine and has a user reported mileage of 27 kmpl. Riding the 2025 Triumph Thruxton 400 . The Thruxton 400 uses the same 398 cc liquid-cooled single-cylinder engine as the other models in the TR series lineup. However, it has been re-tuned to offer more power, courtesy of revised cam timing and an updated air-breather. The engine in the Thruxton 400 is in its most powerful state of tune among the other Triumph 400s , and it certainly feels more alive. Whether it's the way the revs climb or the turn of speed on the digital readout, the Thruxton 400 has the go to match the show.