These are all season tyres with a width of 285 mm, diameter of 23" and a profile of 0%. The speed index is Y (300 km/h), and describes the maximum permissible speed of the tire.
From Protyre
285/40R23 111Y XL Pirelli Scorpion Zero All Season 285/40R23 111Y XL LR | Protyre - Car Tyres - All Season Tyres
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