Harley-Davidson Motorcycles — Reliability & Buyer Risk Guides

Harley-Davidson's V-twin platform is one of the most documented and independently serviceable engines in motorcycling, with decades of owner knowledge and a vast global aftermarket. Modern Milwaukee-Eight engines show meaningful reliability improvements over the Twin Cam era, though heat management in traffic and characteristic vibration remain traits buyers should assess on a test ride. The dense network of independent H-D specialists across Europe keeps long-term ownership costs predictable in a way few other brands can match.