I had new PR4's fitted (not GT's) and have had them balanced, not a problem but the lad balancing them had some trouble.
The rear needed 95 grams on it and the front 45 grams both opposite the tyre valve. (TPI fitted)
So he spun the tyres around 180 degs and ho, only 40 grams on rear and 25 on front. The Michelins don't put a dot on their tyres unlike Bridgestone so no reference as to tyre balance (vs wheel balance).
I've never had this problem before though the fitter/balance has come across this before with Michelins.
The rear needed 95 grams on it and the front 45 grams both opposite the tyre valve. (TPI fitted)
So he spun the tyres around 180 degs and ho, only 40 grams on rear and 25 on front. The Michelins don't put a dot on their tyres unlike Bridgestone so no reference as to tyre balance (vs wheel balance).
I've never had this problem before though the fitter/balance has come across this before with Michelins.