Air vs liquid cooled motorcycle

Most motorcycles are liquid cooled the benefits are better cooling efficiency. Notice the stratospheric redlines on modern race bikes as the reliability of internally parts is increased. These engines are also more streamlined with no cooling fins but have more parts and a radiator. A fan will help cool the bike when it's not moving. The best use of liquid cooling is in racing or high output machines. An air-cooled machine is reliable at lower power output has less weight and less parts. By many, air cooled engines are considered better looking. The main use of these engines are in cruisers and dirt or dual sport bikes.