When Ducati unveiled its first-ever V4 superbike – the Panigale V4 Stradale – many people questioned why it arrived with an 1103cc, an engine that is illegal in the World Superike class.

Ducati reiterated over and over that the V4 was designed for street riding – hence the Stradale name that translates tp Road – and didn’t worry about homologation for WorldSBK.
…
Read full post here:
https://ultimatemotorcycling.com/2018/11/04/ducati-panigale-v4-r-first-look-ready-for-2019-worldsbk-16-fast-facts/