The XSR155 uses Yamaha's advanced 155cc liquid-cooled, 4-valve engine with Variable Valve Actuation (VVA) delivering 18.4 PS at 10000 rpm and 14.1 Nm at 7500 rpm for dual personality, usable low-revs for traffic switching to high-rev power above 6000 rpm. The 6-speed gearbox with assist/slipper clutch offers light shifts for progressive acceleration up to over 130 kmph top speed. Liquid cooling ensures consistency in heat, with low NVH for refinement. No traction control or quickshifter, focusing on pure riding feel with strong mid-range for overtakes. Claimed mileage around 45 kmpl, real-world 40-45 kmpl in mixed riding, making it rev-happy for fun bursts yet efficient for daily use with instant torque and retro-tuned character for engaging, smile-inducing performance on city streets or open roads.

The XSR155 exudes classic neo-retro aesthetics with a round LED headlamp featuring chrome bezel and vintage fork gaiters for heritage charm, paired with a teardrop fuel tank adorned with brushed aluminum panels and 3D emblems for premium touch. The side profile highlights a tucked exhaust, single-piece seat with tuck-and-roll stitching, and minimalist tail for a clean, cafe racer-inspired silhouette. It's compact under 2 meters long with a 1330 mm wheelbase for nimble handling, seat height balanced for reach, and 170 mm ground clearance tackling potholes. Colors are sophisticated, Garnet Red, Matte Grey, or Heritage Green with contrasting stripes. Wheels are 17-inch alloys front/rear with dual-purpose tires for grip, while chrome accents, leatherette seat, and subtle graphics give it a distinctive, head-turning presence, retro yet modern, blending scrambler vibes with urban elegance for standout style on roads or meets.

Safety on the XSR155 includes single-channel ABS (front) for preventing wheel lock during hard braking on slippery surfaces. The lightweight Deltabox frame offers excellent rigidity for stable handling during quick maneuvers or cornering. Side stand engine cut-off avoids mishaps, while tubeless tires reduce puncture risks. Full LED headlamp with strong illumination and clear indicators improve visibility. Telescopic front forks and rear monoshock provide predictable feedback over bumps, with a large front disc for strong bite. No dual-channel ABS or traction control like in MT-15 deluxe, prioritizing essentials for confident urban and highway riding where reliable braking and balance deliver reassuring control in everyday scenarios with retro posture.

The XSR155 competes with the TVS Ronin for similar neo-retro styling and modern features like ride modes in a versatile package. Royal Enfield Hunter 350 offers classic thump and upright comfort for relaxed heritage rides. Honda CB350RS brings refined smoothness and premium build for touring focus. Hero Mavrick 440 provides bolder looks and more torque in a larger displacement. Jawa 42 adds authentic retro character with single-cylinder vibe. Each rival varies in engine feel or posture, but the XSR155 stands out for its VVA performance, lightweight agility, and Yamaha's tech, appealing to riders wanting distinctive neo-retro design, quick revs, and balanced efficiency in the premium 150-350cc retro segment.

Practicality meets retro in the XSR155 with an upright riding position, wide handlebar for easy control in traffic, and a comfortable single-piece seat suitable for longer rides or light pillion use. Y-Connect Bluetooth provides call/SMS alerts, navigation, parking locator, and revs dashboard via app. The fully digital round cluster displays speed, fuel, gear position, VVA activation, and eco indicator clearly in a classic layout. Key features include single-channel ABS for confident braking, side stand engine cut-off for safety, and full LED lighting for visibility. Underseat storage is basic but includes toolkit space, while the lightweight chassis and telescopic forks/rear monoshock offer smooth rides over bumps. Block-pattern tires add light adventure grip, it's daily-friendly with easy parking, low maintenance, and subtle tech making commutes enjoyable with heritage flair for weekend cruises or cafe stops.