The Bajaj Pulsar NS125 is built as a smaller-capacity motorcycle within the NS (Naked Sport) lineup, combining a compact engine with a perimeter frame and design elements inspired by larger Pulsar models. At its core, the motorcycle is powered by a 124.45 cc single-cylinder, air-cooled engine that uses a 4-valve SOHC configuration and fuel injection to manage combustion. This engine produces around 12 PS of power at 8500 rpm and 11 Nm of torque at 7000 rpm, figures that are broadly in line with other motorcycles in the 125cc segment.
The engine is paired with a 5-speed manual gearbox, which allows the rider to shift through gears depending on speed and riding conditions. Power is delivered to the rear wheel via a chain drive system, a common setup in motorcycles of this category. The overall powertrain is designed to provide a mix of usable power and efficiency for everyday riding scenarios.
The NS125 is built on a perimeter frame, a structure that surrounds the engine and distributes loads around it during cornering and regular riding. This type of frame is derived from larger NS models. Suspension duties are handled by telescopic front forks and a rear monoshock suspension, which work together to absorb road irregularities such as bumps and uneven surfaces.
For braking, the motorcycle features a front disc brake and a rear drum brake, supported by a combined braking system (CBS). In some variants, a single-channel ABS setup is also available, depending on the configuration. The braking system is designed to distribute stopping force between the wheels to maintain balance during deceleration.
The bike rides on 17-inch alloy wheels fitted with tubeless tyres, which are commonly used for road grip and ease of maintenance. This wheel setup contributes to maneuverability and stability in both city traffic and open roads.
In terms of dimensions, the Pulsar NS125 has a fuel tank capacity of 12 litres, providing a riding range between refueling stops that depends on fuel consumption and riding conditions. The motorcycle has a kerb weight of around 145 kg and a seat height of approximately 805 mm. Ground clearance is around 178 mm, intended to provide clearance over uneven road surfaces and speed breakers.
The instrument cluster on the NS125 is typically a semi-digital console, combining an analog tachometer with a digital display for speed, fuel level, and trip information. Some variants also include Bluetooth connectivity features, offering additional ride data and navigation-related functions through a connected device.
Lighting components include a halogen or LED headlamp setup depending on variant, and an LED tail lamp, along with design elements such as the wolf-eyed headlamp styling and split grab rails.
