I just got a reply from GRP about the tire compounds:
Quote:
in January when we have put on the market the new line 2015 of 1:8 Gt we have make same little change to all the compound for works this better and also have more time life.
So the compound of 2015 season it is little differnt from the 2014 tyres. But the REVO 2015 and SLICK 2015 compound are the same.
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