The front runners had carbon fiber reproductions of the screens and bags, with lightweight mounts, and nothing else. Clever and pricey to do of course.What I want to know is if those bags were empty or full ;(
Everyone was also wind screen less in an effort to get streamlined.
There was a lot of skill involved in keeping those Hogs ( and Indians ) on a line, more than once there was some gentle slides coming into a corner, and a few with a wobble here and there !
The slides "backing it in" is seen in every road race these days, including MotoGP. The wobbles... well, heh.