Yamaha R15 V4 Price in BD | Yamaha R15 V4. Yamaha R15 V4 Price in Bangladesh. Engine Type is 155cc, Liquid-Cooled, 4-Stroke, SOHC, 4-Valve, VVA Engine. This bike is powered by the 155.00 (cc) Engine. Yamaha R15 V4 Generates Maximum Power 18.4 HP @ 10,000 rpm. It's Maximum Torque is 14.2 Nm @ 7,500 rpm. Transmission duties are taken care of by a 6 Speed Gearbox. Yamaha claims that the bike offers a mileage of 40.00 Kmpl (approx). Yamaha R15 V4 Front Suspension is 37mm Telescopic Upside Down Fork (USD Forks) and Rear Suspension is Linked-Type Monocross Suspension.