i have been thinking of this for a while.
the race starts on slicks and after a few laps or so the rain starts,then the riders are on the option to chance the rain or go in to the spare bike that has rain tyres fitted.
those who opt for the rain tyre come in etc and out again,a few laps later...
The weather forecasters got it spot on for once, and torrential rain arrived as predicted as the 125 race began at about noon in Derbyshire.
Rossi Too Good in Wet as Well as Dry