Hi everyone. I have a big problem with the Street 750 2017. When the engine warms up (for example in traffic) the fan starts, the recovery tank fills with coolant and the bike spills refrigerant from the overflow hose under the bike. After a few trips at high temperature the tank is completely emptied. The Rome Harley workshop has already changed the radiator cap, the thermostat and the head gasket (!!) but the problem still persists. The coolant is the Harley original one. The radiator does not seem to have leaks. What can it ever be ?? They told me they had also done a pressure test and it's ok. Maybe is the cylinder cracked?