Motorcycle engines live and die by how well they shed heat, and the choice between liquid and air cooling shapes everything from performance to maintenance. Riders weighing a new purchase or planning ...

Porsche made the move from air-cooled to water-cooled engines for the 911 in 1997. Here's what pushed the German automaker to leave decades of tradition behind.

While a motorcycle might have massive tires, a laid-back touring stance, or dual chrome exhaust tips, one thing often stands out – the exposed engine. Highlighted with finned cylinders, the exposed ...

Cooling fins are an iconic feature of motorcycle design. These blades made their mark early, with their parallel lines encircling the cylinders of classic bikes from day one. Whether on the striking V ...