2025 Bajaj Pulsar NS400Z: Differences Explained

The Bajaj Pulsar NS400Z, the flagship model in the Bajaj Pulsar range, has been comprehensively updated for 2025. Now priced at Rs 1.92 lakh, the changes to the motorcycle include a revised powertrain with more performance, a newly developed software-based quickshifter system, upgraded brakes, and more. With the changes in the powertrain, the Pulsar NS400Z is claimed to have better acceleration and top speed than before, as well as better stopping power. The upgrade to the Pulsar NS400Z comes just a year after the bike was launched in May 2024. Here’s all you need to know about the updates on the 2025 Bajaj Pulsar NS400Z.

Also Read: 2025 Bajaj Pulsar NS400Z Reaches Dealerships Ahead Of Launch

Engine & Powertrain

The 373 cc engine in the Pulsar NS400Z has been thoroughly revised

The single most important update to the 2025 Bajaj Pulsar NS400Z is in the engine and powertrain. The 373 cc, single-cylinder liquid-cooled engine has undergone significant updates, including a thoroughly revised valvetrain with optimised cam timing and revised intake ducts. The airbox remains the same, but the bottom end of the engine has also undergone changes with a Nikasil-coated forged piston replacing the earlier cast piston. The stronger forged piston is said to have better thermal efficiency as well as withstand higher performance better. With the changes in the powertrain, the radiator cowl has also been redesigned to direct heat flow away from the rider.

Also Read: Bajaj Pulsar NS400Z Real World Review

Performance

The Pulsar NS400Z's engine now churns up to 42.4 bhp, resulting in faster acceleration

In Sport mode, the updated Pulsar NS400Z now has an output of 42.4 bhp at 9,000 rpm, compared to the 39.4 bhp output it used to have earlier. Acceleration has also increased as a result of the updates to the powertrain. Acceleration time from 0-60 kmph is said to have increased by 0.5 seconds to 2.7 seconds, while 0-100 kmph acceleration time has increased by 0.9 seconds to 6.4 seconds. Top speed has also increased to 157 kmph on the updated model. Peak rpm has increased to 10,700 rpm in Sport mode and 10,300 rpm in Road mode.

Sport Shift “Quickshifter”

In collaboration with Bosch, Bajaj R&D has introduced a software-based quickshifter system which uses software and the gear position sensor to pre-empt shifts on the gearbox. According to Bajaj, the software-based quickshifter has been developed due to cost considerations. The quickshifter is offered only in Sport mode and has been termed the “Sport Shift” system. The Sport Shift system cannot be retro-fitted on previous generation Pulsar NS400Z models.

Brakes & Tyres

The motorcycle now gets sintered front brake pads

Going with feedback from multiple reviews of the outgoing model, the company has also replaced the front brake pads with sintered pads on the 2025 Pulsar NS400Z, which should give it better stopping power and braking performance. The 17-inch wheels are now shod with Apollo Alpha H1 radial tyres (110/70-ZR17 (F) and 150/60-ZR17 (R)). However, Bajaj has also stated that the motorcycle could also be offered with MRF tyres in case of supply constraints. As a result of the changes in the brakes and tyres, Bajaj says the stopping distance has reduced by 7 per cent. Existing customers can opt to replace the brake pads with sintered pads.

Price & Value

With the changes, prices for the 2025 Bajaj Pulsar NS400Z have increased by Rs. 8,000, which still makes it excellent value for money as a performance roadster at its price point. So far, the NS400Z has sold over 20,000 units and is a popular model in overseas markets, particularly in the Latin American region. 

Average Volumes Per Month (AVPM) hit a high of 3,400 units in the domestic market and 3,700 units in overseas markets, making it a popular export model for Bajaj. In India, the Pulsar NS400Z has a long list of rivals, including the KTM 390 Duke, the Triumph Speed 400, the TVS Apache RTR 310, and its sibling, the Bajaj Dominar 400, as well as the Royal Enfield Guerrilla 450 to some extent. We will be test riding the 2025 Bajaj Pulsar NS400Z soon, so look out for our first impressions!