On July 9, 2025, Bajaj Auto launched the updated Pulsar NS400Z in India. The company claims this model now reaches a top speed of 157 km/h, up from the older 150 km/h figure. The upgrades are based on rider feedback.
Background
The Pulsar NS400Z is Bajaj’s entry into the 400cc segment under the Pulsar name. It blends power with value. The earlier version delivered about 150 km/h. Bajaj used a 373cc engine. Many riders applauded the style but sought better performance.
Highlights of the New NS400Z
- Engine upgrades include a revised valve train, improved cam timing, and forged pistons.
- Power climbs to 42.4 bhp (up from around 40 bhp).
- Top speed claims now at 157 km/h.
- Acceleration improved: 0–60 km/h in 2.7 sec, 0–100 km/h in 6.4 sec.
- Quick-shifter (‘Sport Shift’) added, usable only in Sport mode.
- New radial tyres, better brakes, LCD console with Bluetooth, navigation, traction control, and four ride modes. (pulsar z400 top speed)
Main Event
Bajaj’s launch on July 9, 2025, revealed these significant upgrades. The price ex-showroom is around ₹1,92,328—making it one of the most affordable 400cc bikes in India. Bajaj says the changes do not affect fuel economy.
Public Reactions
Many bike enthusiasts have responded. On 91Wheels, user reviews praise the engine, design, and value. One reviewer said the engine “feels like a roaring tiger” and handles high speed and corners with ease.
On Reddit, some questioned the accuracy of speedometers. One comment notes:
“154 km/h is the quoted figure; 165 with speedo error.”
Car Blog India also described a YouTuber test run reaching 165 km/h, calling it “surprising” and urging caution due to safety risks on Indian roads.
Expert Opinion
CarandBike’s first ride review (published July 13, 2025) confirms the new top speed claim. They tested the NS400Z and noted its claimed top speed of 157 km/h, up from earlier models. They also emphasized improved performance, thanks to engine tweaks and better gearbox functionality.BikeWale likewise reported the rise in top speed and added that the bike now delivers 42.4 bhp at 9,000 rpm. (BikeWale)
Potential Impact
This upgrade could raise competition in the 400cc segment. At its price point, the NS400Z now offers near-sports-bike performance. The quick-shifter, multi-mode ABS, and ride-by-wire features make it more appealing to tech-savvy riders.
Enhanced top speed and better acceleration may boost appeal among younger buyers, especially those who value speed and style in urban and highway contexts.
Yet safety concerns remain. Many Indian roads are not designed for sustained high-speed riding. Riders may be tempted to test limits, which can be risky.
Conclusion
The updated Pulsar NS400Z, launched July 9, 2025, claims a new top speed of 157 km/h—a significant jump from the previous 150 km/h. Coupled with better power, sharper acceleration, and improved tech, Bajaj has strengthened its value proposition in the 400cc space.
The public response is enthusiastic, though tempered by skepticism on speedometer accuracy and safety concerns. Experts largely agree that the upgrades make the NS400Z more compelling. Still, riders should respect speed limits and ride safely.
Overall, the NS400Z update shows how Bajaj listens to feedback and refines its models—offering more power and features without a heavy price hike. It’s a bold move that could redefine expectations in its segment.
Muhammad Ali is a passionate automotive writer with 7+ years of experience in two-wheeler reviews and industry trends. At HealthInsureZone.xyz, he delivers honest, hands-on insights to help readers make smart vehicle choices.