So i found out i have a slow puncture on one of my new yoko ad08's, last time i drove it was the ricky run last sunday morning, was flat by thursday
I dont think ive even done 500 miles on them yet, im gutted and am hoping its just a dodgy valve or something that can be repaired......

 

I could just be the case where the tyre is not sealed properly to the wheels..
happened to me quite a few times, all they did was taking the tyre off and refit them again and it's fine after that...

 

Checked that the valve cores are tight?