The michelin pro4 service course delivers the best trade off between sports performance and a long tyre life these improvements were achieved thanks to its optimised dual compound technology which features wider lateral bands for optimal grip at all angles of lean new compounds incorporating new elastomers and silica for extra grip at the shoulders weight 200g tpi 110 min max pressure bar 60 to 80 tests carried out using a michelin rolling resistance measuring rig the achievement of th