Kawasaki Ninja ZX-4RR vs. ZX-4R SE Explained: Choosing Your 400 Supersport

400cc with 80hp thanks to ram-air pressurization - just the numbers alone are exciting.

What's the biggest actual difference between the RR and the SE?

Depending on the price gap between the RR and SE, which one makes sense for value would change.

The 400SS category itself is pretty niche, so I don't think there are so many options that picking a grade would be that hard.

An article explaining the RR vs SE grade differences would really help people who are torn - would love to see a comparison with the CBR line too.

A 400cc inline-four putting out 77hp is already a rare spec these days - the kind of number you wouldn't have expected back when regulations were looser.