Just had a question, Just installed 20"s rims on my truck . I got tires 275/55/20. My question is does anyone know what is the biggest side wall the 20"s come in. Meaning is there like a 275 or 285 etc./ 60 or 65 series tires that will fit on the 20's. If so what is the biggest size.

 

Dunno. I have 305/50 20's. I know I've seen 335 for the width. Do a search for 20 " tires and see what comes up.