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 ...

When one thinks of air-cooled motorcycles, vintage cruisers such as Harley-Davidson come to mind. However, Honda's wildly successful CB750 was also air-cooled. By comparison, liquid-cooled bikes came ...

The largest sin the original VW Beetle ever committed was sporting a drivetrain seemingly made of wet paper bags. So to say, it could have been better in the power department. Well, we're not sure ...

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 ...

Bore and Stroke: 125 mm (4.92 in.) x 170 mm (6.69 in.) This engine was a double form of the Z9, which had nine cylinders. Salmson aircraft engines that were produced in France starting in 1913 by the ...

One of the most hotly debated topics among Porsche enthusiasts is which is better: the air-cooled or water-cooled 911. The sports automaker had used an air-cooled engine across multiple generations of ...