I wonder if he could get someone else's tyres printed up to look like his sponsors, sort of how pros used to get frames made by their favourite frame-builder and painted up to look like there team bikes back in the past?
What they used to do at races like Paris Roubaix where they're using non-sponsor-correct tyres is just black out any marks or names with a black marker. Trickier to do with FMBs and Dugasts where the name is printed on the sidewalls, but they'd still give it a go.
I wonder if he could get someone else's tyres printed up to look like his sponsors, sort of how pros used to get frames made by their favourite frame-builder and painted up to look like there team bikes back in the past?