[...trimmed text...]

Tire catalogue says 255/70R22.5 OD 36.6"

275/70R22.5 OD 37.7"

295/70R22.5 OD 39.9" - 40.2"

11R22.5 OD 41.5"

9.00R20 OD 40.1"

10.00R20 OD 41.5" (= 11R22.5)

I haven't found the small 20" (8... Login to read more.