Scooter racing in the mechanical pump is often replaced by an electric water pump to less rotating mass on the crankshaft to have, in turn, a better response and a slight increase in power caused. In addition, air cooled engines also like to replace the cylinder with a water-cooled version. In order not to have to install a mechanical pump, is simply resorting to an electric water pump. Motoforce Racing provides you with this water pump. Flow: 8.5-9 liters / min.