While the title says the smallest V-twin engine on a production bike, we actually found an assortment of small-capacity V-twins during our research, all with identical capacities.

Here are the largest displacement motorcycle engines you can get your hands on in 2025 for every bike maker that matters.

Most motorcycle put agility and convenance first, but these massive motorcycle engines prove they can produce plenty of power when they need to.

Don't let the low price of the Triumph Speed 400 or its smallish engine displacement steer you away from considering it for your first, or next, motorcycle.

KTM's highest CC motorcycle is the 1390 Super Duke R Evo, equipped with the latest iteration of the company's own LC8 V-Twin ...

The EICMA engine appears to be an early rendition, given the lack of power or even displacement specs, but there are a few details Honda's released.