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 ...

Air-cooled engines were once commonplace in the auto and moto industries. The most well-known were the Porsche flat six, VW flat four, Corvair, and numerous motorcycle engines, from BMW to ...

Harley-Davidson has a lot of bikes to pick from, even if you're specifically looking for a liquid-cooled motorcycle. The Revolution 1250T engine is one of the flagship liquid-cooled motor in the ...

From classic V-twins to modern thumpers, these American motorcycles have engines so reliable, they just won't quit.

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 ...