Rear Sportec that's done 3 track days and about 500 miles on my 70 odd hp SL.
All the edges of the grooves are worn rounded and it's a bluey colour on the edge but feels fine. I wouldn't fancy it too much in the wet but I've got a TD coming up soon.
Tyres don't tend to get in this state from racking up the miles on the road but this is the first year I'm gonna be doing a fair number of TDs. Am I going to be pushing my luck doing another day or am I just being a woose?