My car has 19" rims/tyres which are quite noisy compared to my last one which had 17".
Most tyres have a sound rating - my current Continentals are 72db. There are some Goodyear tyres available which are only 65db, which seems to be a lot quieter!
Thing is, the Goodyears are a Y speed rating with a 92y load rating, whereas my Contis are Z for speed and 96y for load.
Will it be ok to have slightly reduced speed and load ratings?