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 ...

We may receive a commission on purchases made from links. Motorcycles grow more powerful with each passing year, with engines like Indian's Power Plus 108 and Harley-Davidson's new 2.1-liter Screaming ...

Last week, Yamaha revealed a hybrid motorcycle engine system it's working on, plonked in a maxi scooter prototype. It could spell an interesting new direction for the Japanese two-wheeler giant to ...

We may receive a commission on purchases made from links. Rebuilding a classic Honda motorcycle engine can be a fun and educational experience. Not only does it allow you to get your hands dirty with ...

The heart and soul of any motorcycle (battery-powered motorcycles notwithstanding) is its engine. From its mighty roar to its fierce torque, a reliable engine can turn an average motorcycle into a ...

There is this phrase Americans love that says there's no replacement for displacement. For one reason or another, the country came to the conclusion that the bigger the engines used in their cars are, ...

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 ...