The optimal gear ratio depends on how the engine fits the intended use of the boat. Courtesy Yamaha In every boat test we run, we include certain specs that we feel are valuable to our readers. Some ...

Engineering legend has it that Atlas, doomed to perpetually bear the weight of the world on his shoulders, lamented, "Give me a lever long enough, and I can move the world." Atlas realized that levers ...

Few vehicle modifications have as major an impact as changing gear ratios, and it's because your car's gear ratio directly translates to how it delivers power. Think about it: The gear ratio, or how ...

Engine capacity, transmission speed, and drivetrain options are important factors when shopping for a pickup truck. But there is one area that shouldn’t be overlooked, and that’s choosing the right ...

Knowing what bike gear ratios mean is vital knowledge for any progressing cyclist or triathlete. Once you understand the interaction between your chainrings and cassette you’ll select the right gear ...