The Honda unicorn 160 engine is all new thought it is based firmly on the old engine.that means that hona R&d took the old engine as a basis and then reworked. It part by part the arrive at the new engine. The bike is milege 45 to 48 km/ liter. These is nice look and comfortable seat. Honda cb uncorn is amazing in term of ride and handling the bike can easly cross most of the obstructions on road.