With a striking design and excellent road presence, the Yamaha Aerox 155 has a sporty and sharp look. The central spine of the bike runs high along the floorboard, which is not flat in shape, and therefore, space is limited. The X-shaped design of the bike’s central spine adds to the good looks of the bike. However, the rider might find it difficult stepping their feet through. LED lights are installed both at the front and rear, but it does not feature LED Turn Indicators. The under-seat storage capacity of the bike is 24.5 litres, which is still inadequate to store a full-face helmet. The storage space does not come with USB Charging or LED lights. A glove compartment is present on the inside of the front apron, with a charging socket. The bike features an LCD instrument console paired with a REV counter and the display shows adequate information including trip meter, odometer, and fuel consumption readouts. The Yamaha Motorcycle Connect App offers Bluetooth connectivity

The performance of the Yamaha Aerox 155 is a strong suit. On the go, no instant surge of power is there from the get-go but once the bike gets moving, the Yamaha Aerox 155 is quite fast. The acceleration of this bike is linear and the rider can reach triple-digit speed in no time, without any effort. Under normal city conditions, the scooter has ample power to keep ahead of many other two-wheeled commuters and on the highway, the Yamaha Aerox 155 settles into a steady cruise. Powered by a 155cc, four-valve, single-cylinder engine, the Yamaha Aerox 155 features a VVA (Variable Valve Actuation). The bike offers plenty of smooth power across the rev range. The scooter has the capacity to churn out a peak torque of 13.9mm at 6,500rpm, and a maximum power of 14.8bhp at 8,000rpm. 

The ride quality of Yamaha Aerox 155 is stiff, but certainly not comfortable. The stiffness compliments the bike’s sporty handling. The bike is able to retain its composure in curve roads, and the bike is up for a spirited riding down the twisted roads, somewhat like a motorcycle. Overall, the scooter is stable, and well-balanced, both around the corners and in a straight line. The brakes on the bike could have felt better. The adequate stopping power comes from the 130mm rear drum and 230mm front disc brake with ABS. 

Overall, the bike is comfortable. The seat that comes with the Yamaha Aerox 155 is comfortable and wide, but the knee room looks premium. For people taller than 6 ft, the knee room might feel a little cramped, even though it is not uncomfortable. The pillion seat of the scooter gives the feeling of a motorcycle, positioned higher up, and may take a while before the rider gets used to mounting it. However, the Yamaha Aerox 155 does not feature a grab rail and there is nothing that the pillion rider can hold on to, and this is a point of contention if the rider intends to ride the scooter two-up much often.