Group4 15" rims 12" back 8" front checking today and it appears the Michelin TB15 in 335x35-15 is discontinued at the moment. Pirelli have two tyres both 345x35-15 one is Cinturato P7 and the second is P Zero Asimmetrico, has anyone any experience of either of these two tyres. The second is a good bit more expensive than the first and both are more expensive than the Michelin's.