I work for a company who administers service contract for motorcycles among other vehicles. We do see a lot of HD claims - most are leak related. These bikes are pretty good, but it seems if they are allowed to get hot, leaks are prone. Modifications also play a big role in reliability. An other point of intrest is ignition systems and charging systems. HDs seem prone to loose ign modules as well as regulators which can lead to the need to replace stators as well. Goldwings on the other hand - with a factory 3 yr warranty - do not have claims filled with my office with the exception of an ocational alternator. Consider cornering clearance, cost of maintence as well as your opinion to make a final choice.