Inline-four motorcycles offer a great balance of price versus performance, with 2026's most recent crop offering something for fans of affordable riding.

Above the engine are three triangular cases: the ignition system's trembler coil and battery in the rear, the water tank in the middle, and the gasoline tank, which also has a surface carburetor, sits ...

The history of the motorcycle engine is long and storied, and ever-evolving. From extremely reliable motorcycle engines to the powerful Harley-Davidson crate engines, there are major bike engine types ...