From Tire Rack:
2020 TESLA MODEL Y LOMG RANGE (look at that typo):
19": 255/45 (114mm sidewall, 711mm diameter)
20": 255/40 (102mm sidewall, 711mm diameter)
2020 TESLA MODEL Y PERFORMANCE:
19": 255/45 (114mm sidewall, 711mm diameter)
2020 TESLA MODEL Y PERFORMANCE UPGRADE:
Front: 21" 255/35 (89mm sidewall, 711mm diameter)
Rear: 21" 275/35 (97mm sidewall, 726mm diameter)