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I am looking into getting these tires as well. I have 22” under my R1S no and I will get 20” tires and Kaltire quoted Fast HD Knuckles with 275/65R20 Hakkapeliitan LT3 for CAD3500 - I have to get tire pressure sensors and Rivian ones are U$380 (4). Someone was saying I should get 60R tires so...