emmissions regulations forced Porsche to give up air cooled engines. The flat-six engines had been developed to produce enormous amounts of power reliably, but they could not go much further with cleaner emmissions. With the switch to water cooling, a host of other benefits are also reaped. It was inevitable that Harley would have to go to liquid cooling in order to stave off tightening emmsions laws.
That said, I hold no hopes. Harley will stay loyal to its heritage of making shoddily built, underengineered, poor performing and handling rattle traps.
That said, I hold no hopes. Harley will stay loyal to its heritage of making shoddily built, underengineered, poor performing and handling rattle traps.