Verkleidung, Airbox & evtl. VVT:
The previous rumors have the 2020 Yamaha YZF-R1 with a new four-cylinder engine, a seamless gearbox, variable valve timing (VVT), and updated electronics, and just recently it was said that we should expect an anti-wheelie braking feature that works via the rear brake.
Our source pegs the update for next year as a bit more mild, and primarily focused around the Euro5 emissions standard. As such, the bike is said to feature redesigned fairings, some changes to the engine (presumably variable valves), and most notably a different airbox.
This should make the 2020 Yamaha YZF-R1 more of an evolution, rather than revolution, on the current R1 design. Presumably, Yamaha feels that the current R1 still stands tall against the rest of the superbike lineup, and a radically new machine isn’t needed to further sales
There is some need however to update the liter bike for the Euro5 regulations, which take affect in 2020 for new models and 2021 for existing ones.