Inspired by the larger YZF-R7, the R15 V4 features a sharp, aggressive design with a focused front end. The bi-functional LED headlight sits between the new LED DRLs, giving the bike a proper mid-size sportbike look. The gold-finished upside-down forks at the front add a touch of premium appeal, enhancing both aesthetics and handling performance. The floating rear panels, combined with the redesigned windscreen and revised fairing, offer improved aerodynamics

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The bike’s LCD digital instrument console now comes with Track and Street modes, featuring a lap timer, which gives it a race-oriented feel. The clip-on handlebars have been widened, providing better leverage while maintaining the committed, sporty riding posture. Overall, the R15 V4 stands out as a stylish and aggressive entry-level sportbike that looks and feels premium despite its small engine size​.

The 2021 Yamaha YZF-R15 V4 is powered by a 155 cc liquid-cooled, 4-valve engine that delivers 18.1 bhp at 10,000 rpm and 14.2 Nm of torque at 7,500 rpm. Although the engine has slightly lower output compared to the previous model, thanks to stricter emission norms, the Variable Valve Actuation (VVA) ensures a wide powerband, offering a smooth and enjoyable performance. The engine is free-revving, and its performance shines as you accelerate through the gears​.

The bike comes with a six-speed gearbox and features a slip and assist clutch that ensures effortless gear shifts. The R15 excels at cutting through traffic, offering agile handling while providing enough performance to keep riders engaged. While it may not be the fastest in straight-line acceleration, it remains a fun and involving bike, especially on twisty roads​.

The R15 V4 has been designed with a sporty suspension setup. The new upside-down forks provide better stability during braking and cornering, making the bike feel planted in all conditions. The deltabox frame ensures a balanced and stable ride, even when tackling sharp corners or making quick direction changes​.

The ride quality is firm, in line with its sporty character, but the bike still manages to soak up minor bumps and road imperfections. The dual-channel ABS works effectively, although the braking system could benefit from more bite. Overall, the bike’s handling characteristics make it a standout in the 150-160cc segment, giving riders confidence both on the track and during everyday rides​

While the YZF-R15 V4 delivers on performance, its committed riding position may not be the most comfortable for long-distance rides. The low and crouched seating position is ideal for track use but may cause discomfort during extended trips. The pillion seat is also positioned quite high, making it less practical for frequent two-up riding​.

For city commutes and short rides, the riding posture remains manageable, but those planning longer journeys should be prepared for some fatigue. Yamaha could have improved comfort by offering adjustable brake and clutch levers for better ergonomics