Roadmaster Prime Bike Price in Bangladesh 2020. Which Engine Type is Single cylinder, 4 stroke. This bike is powered by the 84.41 cc (cc) Engine. Roadmaster Prime Generates Maximum Power 4.5kw @ 8000 rpm Transmission duties are taken care of by a 4 Speed Gearbox. Roadmaster claims that the bike offers a mileage of 65 Kmpl (approx). Roadmaster Prime Front Suspension is Telescopic and Rear Suspension is Twin shocks. Roadmaster Prime Price is 63,900.00 Taka (approx). Click Here to find Roadmaster Motorcycle Showrooms in Bangladesh.