Banner in front of cyclists

(Alberto Panzironi) #1

Hello folks,
I am new Swift user and I can’t understand why some cyclist have a rectangular screen in front of them while racing…
What’s the reason of that thing ?
I hope I have fully explained what I mean

(Paul Allen) #2

It means they are doing a workout.

(Alberto Panzironi) #3

thanks a lot

(Danny Boyd) #4

and the color represents the zone they are currently riding in.