2001 Ducati Monster S 4

The 2001 Ducati Monster S 4 marked Ducati's entry into liquid-cooled naked bikes, bringing superbike power to the Monster platform as the flagship of the naked lineup. This machine delivered genuine performance credentials with its 916cc L-twin borrowed from the 996 superbike, wrapped in the Monster's stripped-down aesthetic that had defined the streetfighter category since 1993.

What you get is a bike that pulls hard through the rev range and rewards aggressive riding, yet remains manageable around town thanks to the Monster's upright ergonomics and reasonable weight distribution. The liquid cooling solved the heat issues that plagued earlier air-cooled Monsters in traffic, while the fuel injection provided crisp throttle response that carbureted models couldn't match. This was serious performance in a naked package — fast enough to embarrass sportbikes on twisty roads but comfortable enough for daily use.

The 2001 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 2000 example should focus on mileage, service history, and condition rather than spec differences.

This Ducati Monster S 4 attracts experienced riders stepping up from smaller nakeds or sportbike owners wanting something more practical, plus collectors who recognize its significance as the first truly powerful Monster.