This list also includes the most powerful Harley-Davidson motorcycle today, a 150-horsepower adventure tourer.

The motorcycle engine has come a long way from its auspicious 19th-century beginnings, evolving over the years to include ...

All information and specs are courtesy of the respective manufacturers unless ... end of Yamaha's most powerful motorcycles.

V-Twin engines from Harley-Davidson and Indian have been dominant in American motorcycle culture for over a century. Modern V ...

The Indian Challenger sure has a more powerful engine; but the Harley-Davidson Road Glide woos us beyond the spec-sheet.

Unlike the air-cooled Enfield though, the AJS gets a more authentic 75-degree V-twin engine with air-oil cooling, shrouded by chunky bodywork and blacked-out chassis components. Fed by an 18-litre ...

Add $1500 for optional polished engine/transmission. Started in 1992 as a retail after market motorcycle shop named Arizona Performance Cycles, APC Motorcycle Co. was formally introduced in 1996. An ...

The category-bending 2023 Arch 1s sport-cruiser motorcycle is what happens when ... the enormous air-cooled 124 cubic inch S&S Cycle T124 V-twin engine, and the basic design, are shared—your ...