As the title. I think tyres have to be road legal but that's the only rule - is that so?
I did marshal on the event in November so saw there was a big variety of tyre choices, and would be interested please to know what people think works best.
Thanks!
For me the one that worked the best was the one I could afford to throw away after the event.
Many might disagree.
If on your first event, then any road tyre which is black, round, holds air and is legal will be fine.
For years on these type of events, I ran on tyres from the scrapyard and got good results.
Whatever you run, I would bring a spare pair of wheels/tyres for the driven wheels to get home on. You don't want to be worrying about tyre wear during the event.