2024 Ktm Duke 390 Specs. Boasting the latest generation in lc4c engines, the 2024 ktm 390 duke muscles up with a 399 cc capacity, more power, smoother acceleration, and lighter overall weight than before. Not only is the 390 a great choice for newer riders, but it is one that won’t be soon outgrown, as it offers a fun performance, lightweight handling, and a ton of features.
Not only is the 390 a great choice for newer riders, but it is one that won’t be soon outgrown, as it offers a fun performance, lightweight handling, and a ton of features. Boasting the latest generation in lc4c engines, the 2024 ktm 390 duke muscles up with a 399 cc capacity, more power, smoother acceleration, and lighter overall weight than before.