The heart of the SP125 is its 123.94cc, single-cylinder, air-cooled engine, now updated to meet BS6 Phase 2 and E20 fuel compliance. This PGM-Fi (Programmed Fuel Injection) motor produces 10.7 bhp at 7500 rpm and 10.9 Nm of torque at 6000 rpm, paired with a 5-speed transmission. While these figures are not segment-leading—the TVS Raider produces 11.2 bhp—the SP125’s true strength lies not in raw power but in its execution. Honda’s eSP (Enhanced Smart Power) technology, which includes an ACG silent starter, eliminates the typical starter motor noise, resulting in a remarkably quiet and instantaneous start. In city traffic, the engine’s refinement is immediately apparent. The power delivery is linear and tractable, with a strong low-to-mid-range torque spread that minimises the need for frequent gear changes. The 5-speed gearbox is precise, with light clutch action, further enhancing the urban riding experience. 

On the highway, the motorcycle can maintain speeds of 70-80 km/h without feeling overly strained, though overtakes require planning. Its primary focus, however, remains fuel efficiency, where it excels. Honda claims 65 kmpl, and real-world figures consistently hover between 55-60 kmpl under mixed riding conditions, making it a highly economical choice for daily commuting.

Honda has engineered the SP125 with the daily commuter's comfort as a priority. The riding posture is upright and neutral, with a comfortable handlebar-seat-footpeg triangle that prevents strain on the rider’s back, shoulders, or wrists during long hours in traffic. The single-piece seat is 730mm long, offering ample space for both the rider and a pillion. While the seat cushioning is adequate for short-to-medium-distance rides, some may find it slightly firm for journeys exceeding an hour. The 790 mm seat height makes the motorcycle accessible to a wide range of riders, allowing most to plant their feet firmly on the ground. 

For the pillion, comfort is addressed with well-positioned footpegs and a practical grab rail that is easy to hold. As an air-cooled motorcycle, heat management is excellent, with no noticeable heat directed towards the rider’s legs even in stop-and-go traffic. From a practicality standpoint, the engine kill switch is a convenient feature at traffic signals. While there is no dedicated storage space, the long seat and grab rail offer viable points for mounting luggage with bungee cords for occasional small loads. The overall package is thoughtfully designed for the rigours of everyday urban use.

The Honda SP125 is built on a diamond-type frame, supported by a conventional telescopic fork at the front and 5-step adjustable hydraulic shock absorbers at the rear. This suspension setup is calibrated for comfort, effectively absorbing most of the undulations and broken patches typical of Indian city roads. The ride quality is compliant without feeling overly soft or wallowy. With a kerb weight of just 116 kg and an accessible 790 mm seat height, the motorcycle is exceptionally nimble and easy to manage in dense traffic. Filtering through gaps is effortless, and its tight turning radius makes U-turns a simple affair. 

However, its handling characteristics are firmly rooted in its commuter identity. The 80/100-18 front and 100/80-18 rear tyres (on the disc variant) offer adequate grip for regular use, but they are not designed for aggressive cornering and can feel limiting when pushed hard. High-speed stability is commendable up to its comfortable cruising speed. The braking setup consists of either a 130mm drum or a 240mm disc at the front, with a 130mm drum at the rear, governed by a Combi-Brake System (CBS). The disc variant is highly recommended, offering progressive and predictable stopping power. While the CBS provides a safety net by distributing brake force, the overall feedback lacks the sharp bite found on more performance-oriented rivals like the TVS Raider.

In the 125cc segment, safety regulations in India mandate the Combi-Brake System (CBS) rather than the more advanced Anti-lock Braking System (ABS) found on motorcycles above 125cc. The Honda SP125 adheres to this with its standard CBS. This system links the front and rear brakes, meaning that applying the rear brake pedal also partially engages the front brake. This helps in achieving more balanced braking, especially for novice riders who may rely heavily on the rear brake, reducing the chances of a rear-wheel skid under hard braking. The effectiveness of the system is noticeably better on the variant equipped with the 240mm front disc brake, which provides superior stopping power and better modulation compared to the base drum brake model. 

Another critical safety feature is the full LED headlamp, which provides a clearer and wider spread of light during night riding, significantly improving visibility. The bike is also equipped with a side-stand engine cut-off switch, a mandatory feature that prevents the rider from moving with the stand engaged. While the SP125’s safety suite is standard for its class, the combination of a well-implemented CBS, a confidence-inspiring front disc, and excellent headlamp illumination makes it a secure and predictable motorcycle for daily commuting.

The premium 125cc space is fiercely contested, and the SP125 faces several competent rivals.

TVS Raider 125:

 The Raider is the segment's performance benchmark. Its 11.2 bhp engine feels more eager and rev-happy than the SP125’s. It also boasts a sportier design, a split-seat configuration, and unique features like two riding modes (Eco and Power) and an optional colour TFT display with SmartXonnect, making it the choice for a younger, performance-oriented buyer.

Hero Super Splendor XTEC:

The Super Splendor XTEC's main differentiator is its focus on connected technology and practicality. It offers Bluetooth connectivity with call/SMS alerts and turn-by-turn navigation on its digital console. Combined with Hero’s vast service network and brand trust, it appeals to buyers who prioritise modern features and ease of ownership over outright refinement.

Bajaj Pulsar 125:

The Pulsar 125 leverages its family lineage to offer a big-bike feel in a commuter package. Its key differentiator is its muscular styling, which closely mimics the larger Pulsar 150. It provides a robust build and a slightly sportier riding posture, attracting buyers who want the aspirational value and road presence of the Pulsar brand.

Who should buy it?

The pragmatic daily commuter who values engine refinement, reliability, and superior fuel economy above all else. This rider appreciates a premium, no-fuss experience and useful features like a digital console and LED headlamp but does not require cutting-edge tech or sporty performance.

Who should skip it?

Riders seeking a thrilling, performance-oriented experience should look at the TVS Raider 125. Those who prioritise the latest connected features like Bluetooth and navigation will find the Hero Super Splendor XTEC to be a more suitable and tech-forward option.